diff --git a/common/arg.cpp b/common/arg.cpp
index 6602435b9..9d436d5b3 100644
--- a/common/arg.cpp
+++ b/common/arg.cpp
@@ -2708,6 +2708,13 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
             params.embd_sep = value;
         }
     ).set_examples({LLAMA_EXAMPLE_EMBEDDING}));
+    add_opt(common_arg(
+        {"--cls-separator"}, "STRING",
+        "separator of classification sequences (default \\t) for example \"<#seq#>\"",
+        [](common_params & params, const std::string & value) {
+            params.cls_sep = value;
+        }
+    ).set_examples({LLAMA_EXAMPLE_EMBEDDING}));
     add_opt(common_arg(
         {"--host"}, "HOST",
         string_format("ip address to listen, or bind to an UNIX socket if the address ends with .sock (default: %s)", params.hostname.c_str()),
diff --git a/common/common.cpp b/common/common.cpp
index 84e594582..3f6fd48d8 100644
--- a/common/common.cpp
+++ b/common/common.cpp
@@ -1298,6 +1298,9 @@ std::vector<llama_token> common_tokenize(
     int n_tokens = text.length() + 2 * add_special;
     std::vector<llama_token> result(n_tokens);
     n_tokens = llama_tokenize(vocab, text.data(), text.length(), result.data(), result.size(), add_special, parse_special);
+    if (n_tokens == std::numeric_limits<int32_t>::min()) {
+        throw std::runtime_error("Tokenization failed: input text too large, tokenization result exceeds int32_t limit");
+    }
     if (n_tokens < 0) {
         result.resize(-n_tokens);
         int check = llama_tokenize(vocab, text.data(), text.length(), result.data(), result.size(), add_special, parse_special);
diff --git a/common/common.h b/common/common.h
index 6b5e69c3e..d6223da84 100644
--- a/common/common.h
+++ b/common/common.h
@@ -354,6 +354,7 @@ struct common_params {
     int32_t embd_normalize = 2;     // normalisation for embeddings (-1=none, 0=max absolute int16, 1=taxicab, 2=euclidean, >2=p-norm)
     std::string embd_out   = "";    // empty = default, "array" = [[],[]...], "json" = openai style, "json+" = same "json" + cosine similarity matrix
     std::string embd_sep   = "\n";  // separator of embeddings
+    std::string cls_sep    = "\t";  // separator of classification sequences
 
     // server params
     int32_t port           = 8080;         // server listens on this network port
diff --git a/convert_hf_to_gguf.py b/convert_hf_to_gguf.py
index 2e08db345..2fe76589e 100755
--- a/convert_hf_to_gguf.py
+++ b/convert_hf_to_gguf.py
@@ -2145,7 +2145,6 @@ class Llama4Model(LlamaModel):
 
     def set_vocab(self):
         self._set_vocab_gpt2()
-        self.gguf_writer.add_add_bos_token(True)
 
     def set_gguf_parameters(self):
         super().set_gguf_parameters()
@@ -3918,9 +3917,6 @@ class BertModel(TextModel):
         special_vocab = gguf.SpecialVocab(self.dir_model, n_vocab=len(tokens))
         special_vocab.add_to_gguf(self.gguf_writer)
 
-        self.gguf_writer.add_add_bos_token(True)
-        self.gguf_writer.add_add_eos_token(True)
-
 
 @ModelBase.register("DistilBertModel", "DistilBertForMaskedLM", "DistilBertForSequenceClassification")
 class DistilBertModel(BertModel):
@@ -3962,8 +3958,6 @@ class RobertaModel(BertModel):
         bpe_tok_path = self.dir_model / "tokenizer.json"
         if bpe_tok_path.exists():
             self._set_vocab_gpt2()
-            self.gguf_writer.add_add_bos_token(True)
-            self.gguf_writer.add_add_eos_token(True)
 
             # we need this to validate the size of the token_type embeddings
             # though currently we are passing all zeros to the token_type embeddings
@@ -4848,8 +4842,6 @@ class JinaBertV2Model(BertModel):
             self.gguf_writer.add_token_type_count(2)
         else:
             raise NotImplementedError(f'Tokenizer {tokenizer_class} is not supported for JinaBertModel')
-        self.gguf_writer.add_add_bos_token(True)
-        self.gguf_writer.add_add_eos_token(True)
 
 
 @ModelBase.register("OpenELMForCausalLM")
@@ -5451,9 +5443,6 @@ class T5Model(TextModel):
         special_vocab = gguf.SpecialVocab(self.dir_model, n_vocab=len(tokens))
         special_vocab.add_to_gguf(self.gguf_writer)
 
-        self.gguf_writer.add_add_bos_token(False)
-        self.gguf_writer.add_add_eos_token(True)
-
     def set_gguf_parameters(self):
         if (n_ctx := self.find_hparam(["n_positions"], optional=True)) is None:
             logger.warning("Couldn't find context length in config.json, assuming default value of 512")
@@ -5591,9 +5580,6 @@ class T5EncoderModel(TextModel):
         special_vocab = gguf.SpecialVocab(self.dir_model, n_vocab=len(tokens))
         special_vocab.add_to_gguf(self.gguf_writer)
 
-        self.gguf_writer.add_add_bos_token(False)
-        self.gguf_writer.add_add_eos_token(True)
-
     def set_gguf_parameters(self):
         if (n_ctx := self.find_hparam(["n_positions"], optional=True)) is None:
             logger.warning("Couldn't find context length in config.json, assuming default value of 512")
diff --git a/examples/embedding/embedding.cpp b/examples/embedding/embedding.cpp
index 681929d27..0ec2999a0 100644
--- a/examples/embedding/embedding.cpp
+++ b/examples/embedding/embedding.cpp
@@ -133,10 +133,36 @@ int main(int argc, char ** argv) {
     // max batch size
     const uint64_t n_batch = params.n_batch;
 
+    // get added sep and eos token, if any
+    const std::string added_sep_token = llama_vocab_get_add_sep(vocab) ? llama_vocab_get_text(vocab, llama_vocab_sep(vocab)) : "";
+    const std::string added_eos_token = llama_vocab_get_add_eos(vocab) ? llama_vocab_get_text(vocab, llama_vocab_eos(vocab)) : "";
+
     // tokenize the prompts and trim
     std::vector<std::vector<int32_t>> inputs;
     for (const auto & prompt : prompts) {
-        auto inp = common_tokenize(ctx, prompt, true, true);
+        std::vector<llama_token> inp;
+
+        // split classification pairs and insert expected separator tokens
+        if (pooling_type == LLAMA_POOLING_TYPE_RANK && prompt.find(params.cls_sep) != std::string::npos) {
+            std::vector<std::string> pairs = split_lines(prompt, params.cls_sep);
+            std::string final_prompt;
+
+            for (size_t i = 0; i < pairs.size(); i++) {
+                final_prompt += pairs[i];
+                if (i != pairs.size() - 1) {
+                    if (!added_eos_token.empty()) {
+                        final_prompt += added_eos_token;
+                    }
+                    if (!added_sep_token.empty()) {
+                        final_prompt += added_sep_token;
+                    }
+                }
+            }
+
+            inp = common_tokenize(ctx, final_prompt, true, true);
+        } else {
+            inp = common_tokenize(ctx, prompt, true, true);
+        }
         if (inp.size() > n_batch) {
             LOG_ERR("%s: number of tokens in input line (%lld) exceeds batch size (%lld), increase batch size and re-run\n",
                     __func__, (long long int) inp.size(), (long long int) n_batch);
@@ -145,11 +171,11 @@ int main(int argc, char ** argv) {
         inputs.push_back(inp);
     }
 
-    // check if the last token is SEP
+    // check if the last token is SEP/EOS
     // it should be automatically added by the tokenizer when 'tokenizer.ggml.add_eos_token' is set to 'true'
     for (auto & inp : inputs) {
-        if (inp.empty() || inp.back() != llama_vocab_sep(vocab)) {
-            LOG_WRN("%s: last token in the prompt is not SEP\n", __func__);
+        if (inp.empty() || (inp.back() != llama_vocab_sep(vocab) && inp.back() != llama_vocab_eos(vocab))) {
+            LOG_WRN("%s: last token in the prompt is not SEP or EOS\n", __func__);
             LOG_WRN("%s: 'tokenizer.ggml.add_eos_token' should be set to 'true' in the GGUF header\n", __func__);
         }
     }
diff --git a/ggml/src/ggml-cpu/arch/powerpc/cpu-feats.cpp b/ggml/src/ggml-cpu/arch/powerpc/cpu-feats.cpp
new file mode 100644
index 000000000..fedd64302
--- /dev/null
+++ b/ggml/src/ggml-cpu/arch/powerpc/cpu-feats.cpp
@@ -0,0 +1,82 @@
+# include "ggml-backend-impl.h"
+
+#if defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
+
+#if defined(__linux__)
+#include <sys/auxv.h>
+#endif
+
+#include <string>
+
+struct powerpc_features {
+    std::string platform = "";
+    int power_version    = -1;
+
+    bool has_vsx         = false;
+
+    powerpc_features() {
+#if defined(__linux__)
+        unsigned long auxval = getauxval(AT_PLATFORM);
+        if (auxval) {
+            platform = std::string(reinterpret_cast<const char*>(auxval));
+            // TBD: Do systems exist that return this in uppercase?
+            if (platform.substr(0, 5) == "power") {
+                // Extractt a numeric suffix, if one exists
+                int vpos = -1;
+                for (int i = platform.length() - 1; i >= 0; i--) {
+                    if (std::isdigit(platform[i])) {
+                        vpos = i;
+                    } else {
+                        break;
+                    }
+                }
+                if (vpos > -1) {
+                    power_version = std::stoi(platform.substr(vpos));
+                }
+            }
+        }
+#endif
+        if (power_version >= 9) {
+            has_vsx = true;
+        }
+    }
+};
+
+static int ggml_backend_cpu_powerpc_score() {
+    int score = 1;
+    powerpc_features pf;
+
+// Platform scores
+#if defined(GGML_USE_POWER7)
+    if (pf.power_version < 7) { return 0; }
+    score += 1<<1;
+#endif
+#if defined(GGML_USE_POWER8)
+    if (pf.power_version < 8) { return 0; }
+    score += 1<<2;
+#endif
+#if defined(GGML_USE_POWER9)
+    if (pf.power_version < 9) { return 0; }
+    score += 1<<3;
+#endif
+#if defined(GGML_USE_POWER10)
+    if (pf.power_version < 10) { return 0; }
+    score += 1<<4;
+#endif
+#if defined(GGML_USE_POWER11)
+    if (pf.power_version < 11) { return 0; }
+    score += 1<<5;
+#endif
+
+// Feature scores
+#if defined(GGML_USE_VSX)
+    if (!pf.has_vsx) { return 0; }
+    score += 1<<6;
+#endif
+
+    return score;
+}
+
+GGML_BACKEND_DL_SCORE_IMPL(ggml_backend_cpu_powerpc_score)
+
+#endif // defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
diff --git a/ggml/src/ggml-cpu/repack.cpp b/ggml/src/ggml-cpu/repack.cpp
index 762039b39..5b28ce836 100644
--- a/ggml/src/ggml-cpu/repack.cpp
+++ b/ggml/src/ggml-cpu/repack.cpp
@@ -1180,13 +1180,24 @@ template <typename BLOC_TYPE, int64_t INTER_SIZE, int64_t NB_COLS, ggml_type PAR
         // not realy a GGML_TYPE_Q8_0 but same size.
         switch (op->op) {
             case GGML_OP_MUL_MAT:
-                size = ggml_row_size(PARAM_TYPE, ggml_nelements(op->src[1]));
-                return true;
+                {
+                    size = ggml_row_size(PARAM_TYPE, ggml_nelements(op->src[1]));
+                    return true;
+                }
             case GGML_OP_MUL_MAT_ID:
-                size = ggml_row_size(PARAM_TYPE, ggml_nelements(op->src[1]));
-                size = GGML_PAD(size, sizeof(int64_t));  // + padding for next bloc.
-                size += sizeof(int64_t) * (1+op->src[0]->ne[2]) * op->src[1]->ne[2];
-                return true;
+                {
+                    size = ggml_row_size(PARAM_TYPE, ggml_nelements(op->src[1]));
+                    size = GGML_PAD(size, sizeof(int64_t)); // + padding for next bloc.
+
+                    const int64_t ne02 = op->src[0]->ne[2]; // n_as, n_expert
+                    const int64_t ne12 = op->src[1]->ne[2]; // n_tokens
+
+                    const size_t sizeof_mmid_row_mapping = sizeof(int64_t);
+
+                    size += sizeof_mmid_row_mapping*ne02*(ne12 + 1);
+
+                    return true;
+                }
             default:
                 // GGML_ABORT("fatal error");
                 break;
@@ -1322,14 +1333,17 @@ template <typename BLOC_TYPE, int64_t INTER_SIZE, int64_t NB_COLS, ggml_type PAR
             int32_t i2;
         };
 
-        GGML_ASSERT(params->wsize >= (GGML_PAD(nbw3, sizeof(int64_t)) + n_as * sizeof(int64_t) +
-                                      n_as * ne12 * sizeof(mmid_row_mapping)));
+        GGML_ASSERT(params->wsize >=
+                (GGML_PAD(nbw3, sizeof(int64_t)) +
+                 n_as*(ne12 + 1)*sizeof(mmid_row_mapping))
+                );
 
-        auto * wdata             = (char *)     params->wdata;
-        auto * wdata_src1_end    = (char *)     wdata + GGML_PAD(nbw3, sizeof(int64_t));
-        auto * matrix_row_counts = (int64_t *) (wdata_src1_end); // [n_as]
+        auto * wdata          = (char *)params->wdata;
+        auto * wdata_src1_end = (char *)wdata + GGML_PAD(nbw3, sizeof(int64_t));
 
-        struct mmid_row_mapping * matrix_rows = (struct mmid_row_mapping *) (matrix_row_counts + n_as);  // [n_as][ne12]
+        // total of [n_as][ne12 + 1] elemets of type mmid_row_mapping (2*int32_t = int64_t)
+        auto * matrix_row_counts = (int64_t *) (wdata_src1_end);                                        // [n_as]
+        struct mmid_row_mapping * matrix_rows = (struct mmid_row_mapping *) (matrix_row_counts + n_as); // [n_as][ne12]
 
         // src1: float32 => param type
         for (int64_t i12 = 0; i12 < ne12; ++i12) {
@@ -1414,15 +1428,6 @@ template <typename BLOC_TYPE, int64_t INTER_SIZE, int64_t NB_COLS, ggml_type PAR
     }
 };
 
-// instance for Q4
-static const tensor_traits<block_q4_0, 4, 4, GGML_TYPE_Q8_0> q4_0_4x4_q8_0;
-static const tensor_traits<block_q4_0, 8, 4, GGML_TYPE_Q8_0> q4_0_4x8_q8_0;
-static const tensor_traits<block_q4_0, 8, 8, GGML_TYPE_Q8_0> q4_0_8x8_q8_0;
-static const tensor_traits<block_q4_K, 8, 8, GGML_TYPE_Q8_K> q4_K_8x8_q8_K;
-
-// instance for IQ4
-static const tensor_traits<block_iq4_nl, 4, 4, GGML_TYPE_Q8_0> iq4_nl_4x4_q8_0;
-
 }  // namespace ggml::cpu::repack
 
 static void flag_aarch_prepacked_quant(int type)
@@ -1435,55 +1440,65 @@ static void flag_aarch_prepacked_quant(int type)
 }
 
 static const ggml::cpu::tensor_traits * ggml_repack_get_optimal_repack_type(const struct ggml_tensor * cur) {
+
+    // instance for Q4
+    static const ggml::cpu::repack::tensor_traits<block_q4_0, 4, 4, GGML_TYPE_Q8_0> q4_0_4x4_q8_0;
+    static const ggml::cpu::repack::tensor_traits<block_q4_0, 8, 4, GGML_TYPE_Q8_0> q4_0_4x8_q8_0;
+    static const ggml::cpu::repack::tensor_traits<block_q4_0, 8, 8, GGML_TYPE_Q8_0> q4_0_8x8_q8_0;
+    static const ggml::cpu::repack::tensor_traits<block_q4_K, 8, 8, GGML_TYPE_Q8_K> q4_K_8x8_q8_K;
+
+    // instance for IQ4
+    static const ggml::cpu::repack::tensor_traits<block_iq4_nl, 4, 4, GGML_TYPE_Q8_0> iq4_nl_4x4_q8_0;
+
     if (cur->type == GGML_TYPE_Q4_0) {
         //we shall just use the regular avx2 handling, no repacking
         if (/*ggml_cpu_has_avx2() ||*/ (ggml_cpu_has_sve() && ggml_cpu_has_matmul_int8() && ggml_cpu_get_sve_cnt() == QK8_0)) {
             if (cur->ne[1] % 8 == 0) {
-                return &ggml::cpu::repack::q4_0_8x8_q8_0;
+                return &q4_0_8x8_q8_0;
             }
         }
         if (ggml_cpu_has_neon() && ggml_cpu_has_matmul_int8()) {
             if (cur->ne[1] % 4 == 0) {
-                return &ggml::cpu::repack::q4_0_4x8_q8_0;
+                return &q4_0_4x8_q8_0;
             }
         }
         if (ggml_cpu_has_neon() && ggml_cpu_has_dotprod()) {
             if (cur->ne[1] % 4 == 0) {
-                return &ggml::cpu::repack::q4_0_4x4_q8_0;
+                return &q4_0_4x4_q8_0;
             }
         }
     } else if (cur->type == GGML_TYPE_Q4_K) {
-        // if (ggml_cpu_has_avx2()) { //we shall just use the regular avx2 handling, no repacking otherwise massive slowdown with gpu
-        //     if (cur->ne[1] % 8 == 0) {
-        //         return &ggml::cpu::aarch64::q4_K_8x8_q8_K;
-        //     }
-        // }
+      //  if (ggml_cpu_has_avx2()) {
+      //      if (cur->ne[1] % 8 == 0) {
+      //          return &q4_K_8x8_q8_K;
+      //      }
+      //  }
     } else if (cur->type == GGML_TYPE_IQ4_NL) {
         if (ggml_cpu_has_neon() && ggml_cpu_has_dotprod()) {
             if (cur->ne[1] % 4 == 0) {
-                return &ggml::cpu::repack::iq4_nl_4x4_q8_0;
+                return &iq4_nl_4x4_q8_0;
             }
         }
     }
     else if (cur->type == GGML_TYPE_Q4_0_4_4) //kcpp backport old quant support
     {
         flag_aarch_prepacked_quant(cur->type);
-        return &ggml::cpu::repack::q4_0_4x4_q8_0;
+        return &q4_0_4x4_q8_0;
     }
     else if (cur->type == GGML_TYPE_Q4_0_4_8)
     {
         flag_aarch_prepacked_quant(cur->type);
-        return &ggml::cpu::repack::q4_0_4x8_q8_0;
+        return &q4_0_4x8_q8_0;
     }
     else if (cur->type == GGML_TYPE_Q4_0_8_8)
     {
         flag_aarch_prepacked_quant(cur->type);
-        return &ggml::cpu::repack::q4_0_8x8_q8_0;
+        return &q4_0_8x8_q8_0;
     }
     else if (cur->type == GGML_TYPE_IQ4_NL)
     {
         flag_aarch_prepacked_quant(cur->type);
-        return &ggml::cpu::repack::iq4_nl_4x4_q8_0;
+        return &iq4_nl_4x4_q8_0;
     }
 
     return nullptr;
diff --git a/ggml/src/ggml-cuda/common.cuh b/ggml/src/ggml-cuda/common.cuh
index 516b23a78..e18f1f2db 100644
--- a/ggml/src/ggml-cuda/common.cuh
+++ b/ggml/src/ggml-cuda/common.cuh
@@ -19,10 +19,10 @@
 #endif
 #include "ggml-common.h"
 
-#include <cstdio>
 #include <array>
 #include <cassert>
 #include <cfloat>
+#include <cstdio>
 #include <string>
 #include <vector>
 
@@ -771,21 +771,7 @@ struct ggml_backend_cuda_context {
         name(GGML_CUDA_NAME + std::to_string(device)) {
     }
 
-    ~ggml_backend_cuda_context() {
-        if (copy_event != nullptr) {
-            CUDA_CHECK(cudaEventDestroy(copy_event));
-        }
-        for (int i = 0; i < GGML_CUDA_MAX_DEVICES; ++i) {
-            for (int j = 0; j < GGML_CUDA_MAX_STREAMS; ++j) {
-                if (streams[i][j] != nullptr) {
-                    CUDA_CHECK(cudaStreamDestroy(streams[i][j]));
-                }
-            }
-            if (cublas_handles[i] != nullptr) {
-                CUBLAS_CHECK(cublasDestroy(cublas_handles[i]));
-            }
-        }
-    }
+    ~ggml_backend_cuda_context();
 
     cudaStream_t stream(int device, int stream) {
         if (streams[device][stream] == nullptr) {
diff --git a/ggml/src/ggml-cuda/conv2d-transpose.cu b/ggml/src/ggml-cuda/conv2d-transpose.cu
new file mode 100644
index 000000000..03224e404
--- /dev/null
+++ b/ggml/src/ggml-cuda/conv2d-transpose.cu
@@ -0,0 +1,91 @@
+#include <algorithm>
+
+#include "conv2d-transpose.cuh"
+#include "ggml.h"
+
+__global__ void conv2d_transpose_kernel(const float * __restrict__ input, const half * __restrict__ kernel,
+                                        float * __restrict__ output, const int in_w, const int in_h, const int out_w,
+                                        const int out_h, const int kernel_w, const int kernel_h, const int stride,
+                                        const int c_in, const int c_out, const int batches) {
+    const int global_idx = blockIdx.x * blockDim.x + threadIdx.x;
+
+    const int total_elements = out_w * out_h * c_out * batches;
+
+    if (global_idx >= total_elements) {
+        return;
+    }
+
+    const int out_x_idx = global_idx % out_w;
+    const int out_y_idx = (global_idx / out_w) % out_h;
+    const int c_idx     = (global_idx / (out_w * out_h)) % c_out;
+    const int n_idx     = global_idx / (out_w * out_h * c_out);
+
+    float accumulator = 0;
+    // For each output idx, find the inputs that contribute to it by checking stride alignment and bounds
+
+    for (int c_in_idx = 0; c_in_idx < c_in; c_in_idx++) {
+        for (int kh = 0; kh < kernel_h; ++kh) {
+            int in_y = out_y_idx - kh;
+            if (in_y < 0 || in_y % stride) continue;
+            in_y /= stride;
+            if (in_y >= in_h) continue;
+
+            for (int kw = 0; kw < kernel_w; ++kw) {
+                int in_x = out_x_idx - kw;
+                if (in_x < 0 || in_x % stride) continue;
+                in_x /= stride;
+                if (in_x >= in_w) continue;
+
+                const int input_idx = (in_w * in_h * c_in) * n_idx + (in_w * in_h) * c_in_idx + (in_w) *in_y + in_x;
+                const int kernel_idx =
+                    (kernel_h * kernel_w * c_out) * c_in_idx + (kernel_h * kernel_w) * c_idx + (kernel_w) *kh + kw;
+
+                float input_val = input[input_idx];
+                half  kern_val  = kernel[kernel_idx];
+
+                accumulator += input_val * (float) kern_val;
+            }
+        }
+    }
+
+    output[(out_w * out_h * c_out) * n_idx + (out_w * out_h) * c_idx + (out_w) *out_y_idx + out_x_idx] = accumulator;
+}
+
+//input is (W, H, C_in, N), Kernel is (W, H, C_out, C_in)
+void ggml_cuda_conv_2d_transpose_p0(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+    const ggml_tensor * kernel = dst->src[0];
+    const ggml_tensor * input  = dst->src[1];
+
+    GGML_ASSERT(kernel->type == GGML_TYPE_F16 && input->type == GGML_TYPE_F32 && dst->type == GGML_TYPE_F32);
+
+    const float * input_data  = (const float *) input->data;
+    float *       output_data = (float *) dst->data;
+    const half * kernel_data = (const half *) kernel->data;
+
+    const int input_w      = input->ne[0];
+    const int input_h      = input->ne[1];
+    const int output_w     = dst->ne[0];
+    const int output_h     = dst->ne[1];
+    const int channels_in  = input->ne[2];
+    const int channels_out = kernel->ne[2];
+    const int kernel_w     = kernel->ne[0];
+    const int kernel_h     = kernel->ne[1];
+    const int stride       = dst->op_params[0];
+    const int batches      = input->ne[3];
+
+    GGML_ASSERT(channels_in == kernel->ne[3]);
+    GGML_ASSERT(stride > 0);
+
+    cudaStream_t st = ctx.stream();
+
+    GGML_ASSERT(ggml_is_contiguous(input));
+    GGML_ASSERT(ggml_is_contiguous(kernel));
+    GGML_ASSERT(ggml_is_contiguous(dst));
+
+    const int total  = (output_w * output_h * channels_out * batches);
+    const int blocks = (total + CUDA_CONV2D_TRANSPOSE_BLOCK_SIZE - 1) / CUDA_CONV2D_TRANSPOSE_BLOCK_SIZE;
+
+    conv2d_transpose_kernel<<<blocks, CUDA_CONV2D_TRANSPOSE_BLOCK_SIZE, 0, st>>>(
+        input_data, kernel_data, output_data, input_w, input_h, output_w, output_h, kernel_w, kernel_h, stride,
+        channels_in, channels_out, batches);
+}
diff --git a/ggml/src/ggml-cuda/conv2d-transpose.cuh b/ggml/src/ggml-cuda/conv2d-transpose.cuh
new file mode 100644
index 000000000..c9430b248
--- /dev/null
+++ b/ggml/src/ggml-cuda/conv2d-transpose.cuh
@@ -0,0 +1,4 @@
+#include "common.cuh"
+
+#define CUDA_CONV2D_TRANSPOSE_BLOCK_SIZE 256
+void ggml_cuda_conv_2d_transpose_p0(ggml_backend_cuda_context & ctx, ggml_tensor * dst);
diff --git a/ggml/src/ggml-cuda/ggml-cuda.cu b/ggml/src/ggml-cuda/ggml-cuda.cu
index 37406769f..b05c40a0e 100644
--- a/ggml/src/ggml-cuda/ggml-cuda.cu
+++ b/ggml/src/ggml-cuda/ggml-cuda.cu
@@ -14,6 +14,7 @@ bool g_mul_mat_q = true;
 #include "ggml-cuda/concat.cuh"
 #include "ggml-cuda/conv-transpose-1d.cuh"
 #include "ggml-cuda/conv2d-dw.cuh"
+#include "ggml-cuda/conv2d-transpose.cuh"
 #include "ggml-cuda/convert.cuh"
 #include "ggml-cuda/count-equal.cuh"
 #include "ggml-cuda/cpy.cuh"
@@ -50,6 +51,7 @@ bool g_mul_mat_q = true;
 #include <atomic>
 #include <charconv>
 #include <cinttypes>
+#include <condition_variable>
 #include <cstddef>
 #include <cstdint>
 #include <float.h>
@@ -57,9 +59,8 @@ bool g_mul_mat_q = true;
 #include <map>
 #include <memory>
 #include <mutex>
-#include <stdint.h>
-#include <stdio.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string>
 #include <vector>
@@ -516,6 +517,33 @@ std::unique_ptr<ggml_cuda_pool> ggml_backend_cuda_context::new_pool_for_device(i
     return std::unique_ptr<ggml_cuda_pool>(new ggml_cuda_pool_leg(device));
 }
 
+// destroying a cuBLAS handle while a graph is being captured in a different thread can result in a CUDA error
+// this lock is used to ensure that no cuBLAS handle is destroyed while a graph is being captured
+
+static std::mutex ggml_cuda_lock;
+static std::condition_variable ggml_cuda_lock_cv;
+static std::atomic<int> ggml_cuda_lock_counter;
+
+ggml_backend_cuda_context::~ggml_backend_cuda_context() {
+    std::unique_lock<std::mutex> lock(ggml_cuda_lock);
+    ggml_cuda_lock_cv.wait(lock, []{ return ggml_cuda_lock_counter.load(std::memory_order_relaxed) == 0; });
+
+    if (copy_event != nullptr) {
+        CUDA_CHECK(cudaEventDestroy(copy_event));
+    }
+    for (int i = 0; i < GGML_CUDA_MAX_DEVICES; ++i) {
+        for (int j = 0; j < GGML_CUDA_MAX_STREAMS; ++j) {
+            if (streams[i][j] != nullptr) {
+                CUDA_CHECK(cudaStreamDestroy(streams[i][j]));
+            }
+        }
+        if (cublas_handles[i] != nullptr) {
+            CUBLAS_CHECK(cublasDestroy(cublas_handles[i]));
+        }
+    }
+}
+
+
 // cuda buffer
 
 struct ggml_backend_cuda_buffer_context {
@@ -2319,6 +2347,9 @@ static bool ggml_cuda_compute_forward(ggml_backend_cuda_context & ctx, struct gg
         case GGML_OP_CONV_2D_DW:
             ggml_cuda_op_conv2d_dw(ctx, dst);
             break;
+        case GGML_OP_CONV_TRANSPOSE_2D:
+            ggml_cuda_conv_2d_transpose_p0(ctx, dst);
+            break;
         case GGML_OP_CONV_TRANSPOSE_1D:
             ggml_cuda_op_conv_transpose_1d(ctx,dst);
             break;
@@ -2694,6 +2725,11 @@ static void evaluate_and_capture_cuda_graph(ggml_backend_cuda_context * cuda_ctx
 
             CUDA_CHECK(cudaStreamEndCapture(cuda_ctx->stream(), &cuda_ctx->cuda_graph->graph));
             graph_evaluated_or_captured = true; // CUDA graph has been captured
+
+            std::lock_guard<std::mutex> lock(ggml_cuda_lock);
+            if (ggml_cuda_lock_counter.fetch_sub(1, std::memory_order_relaxed) == 1) {
+                ggml_cuda_lock_cv.notify_all();
+            }
         } else {
             graph_evaluated_or_captured = true; // ggml graph has been directly evaluated
         }
@@ -2769,7 +2805,13 @@ static enum ggml_status ggml_backend_cuda_graph_compute(ggml_backend_t backend,
         }
     }
 
-    if (use_cuda_graph && cuda_graph_update_required) { // Start CUDA graph capture
+    if (use_cuda_graph && cuda_graph_update_required) {
+        // Start CUDA graph capture
+        {
+            std::lock_guard<std::mutex> lock(ggml_cuda_lock);
+            ggml_cuda_lock_counter.fetch_add(1, std::memory_order_relaxed);
+        }
+
         CUDA_CHECK(cudaStreamBeginCapture(cuda_ctx->stream(), cudaStreamCaptureModeRelaxed));
     }
 
@@ -3219,6 +3261,7 @@ static bool ggml_backend_cuda_device_supports_op(ggml_backend_dev_t dev, const g
         }
         case GGML_OP_IM2COL:
         case GGML_OP_CONV_2D_DW:
+        case GGML_OP_CONV_TRANSPOSE_2D:
         case GGML_OP_POOL_2D:
         case GGML_OP_SUM:
         case GGML_OP_SUM_ROWS:
diff --git a/gguf-py/gguf/constants.py b/gguf-py/gguf/constants.py
index 834a1d5e1..0429b0aaf 100644
--- a/gguf-py/gguf/constants.py
+++ b/gguf-py/gguf/constants.py
@@ -198,6 +198,7 @@ class Keys:
         MASK_ID              = "tokenizer.ggml.mask_token_id"
         ADD_BOS              = "tokenizer.ggml.add_bos_token"
         ADD_EOS              = "tokenizer.ggml.add_eos_token"
+        ADD_SEP              = "tokenizer.ggml.add_sep_token"
         ADD_PREFIX           = "tokenizer.ggml.add_space_prefix"
         REMOVE_EXTRA_WS      = "tokenizer.ggml.remove_extra_whitespaces"
         PRECOMPILED_CHARSMAP = "tokenizer.ggml.precompiled_charsmap"
diff --git a/gguf-py/gguf/gguf_writer.py b/gguf-py/gguf/gguf_writer.py
index 54ca0c33f..b9b63d052 100644
--- a/gguf-py/gguf/gguf_writer.py
+++ b/gguf-py/gguf/gguf_writer.py
@@ -891,6 +891,9 @@ class GGUFWriter:
     def add_add_eos_token(self, value: bool) -> None:
         self.add_bool(Keys.Tokenizer.ADD_EOS, value)
 
+    def add_add_sep_token(self, value: bool) -> None:
+        self.add_bool(Keys.Tokenizer.ADD_SEP, value)
+
     def add_add_space_prefix(self, value: bool) -> None:
         self.add_bool(Keys.Tokenizer.ADD_PREFIX, value)
 
diff --git a/gguf-py/gguf/vocab.py b/gguf-py/gguf/vocab.py
index 44d066ee7..6c4d3a422 100644
--- a/gguf-py/gguf/vocab.py
+++ b/gguf-py/gguf/vocab.py
@@ -119,6 +119,7 @@ class SpecialVocab:
         logger.warning(f'Special token type {typ}, id {tid} out of range, must be under {self.n_vocab} - skipping')
 
     def _try_load_from_tokenizer_json(self, path: Path) -> bool:
+        tokenizer = None
         tokenizer_file = path / 'tokenizer.json'
         if tokenizer_file.is_file():
             with open(tokenizer_file, encoding = 'utf-8') as f:
@@ -152,11 +153,87 @@ class SpecialVocab:
             added_tokens = tokenizer.get('added_tokens', {})
         else:
             added_tokens = {}
+        tokenizer_config = None
         tokenizer_config_file = path / 'tokenizer_config.json'
-        if not tokenizer_config_file.is_file():
+        if tokenizer_config_file.is_file():
+            with open(tokenizer_config_file, encoding = 'utf-8') as f:
+                tokenizer_config = json.load(f)
+        if tokenizer:
+            special_bos = (tokenizer_config or {}).get('bos_token')
+            special_cls = (tokenizer_config or {}).get('cls_token')
+            special_eos = (tokenizer_config or {}).get('eos_token')
+            special_sep = (tokenizer_config or {}).get('sep_token')
+            if not special_bos and special_cls and tokenizer_config:
+                tokenizer_config['bos_token'] = special_bos = special_cls
+            if not special_eos and special_sep and tokenizer_config:
+                tokenizer_config['eos_token'] = special_eos = special_sep
+            post_processor = tokenizer.get('post_processor', {})
+            for processor in post_processor.get('processors', [post_processor]):
+                if processor.get('type') == 'RobertaProcessing':
+                    self.add_special_token['bos'] = True
+                    self.add_special_token['eos'] = True
+                    self.add_special_token['sep'] = True
+                    if not special_cls and tokenizer_config:
+                        special_cls = processor.get('cls', [special_bos])[0]
+                        tokenizer_config['cls_token'] = special_cls
+                    if not special_sep and tokenizer_config:
+                        special_sep = processor.get('sep', [special_eos])[0]
+                        tokenizer_config['sep_token'] = special_sep
+                    continue
+                # Crude parsing of TemplateProcessing to determine if BOS/SEP/EOS should be added
+                # Only works with simple templates, **will** get it wrong on unusual sequences
+                if processor.get('type') == 'TemplateProcessing':
+                    tmpl_single = processor.get('single', [])
+                    tmpl_pair = processor.get('pair', [])
+                    special_first = None
+                    special_last = None
+                    if len(tmpl_single) > 1:
+                        if special_first := tmpl_single[0].get('SpecialToken', {}).get('id'):
+                            if not tokenizer_config:
+                                special_bos = special_first
+                            self.add_special_token['bos'] = True if special_first in (special_bos, special_cls) else False
+                            if special_first not in (special_bos, special_cls):
+                                logger.warning(f'Unknown leading special token {special_first!r} in TemplateProcessing<single>')
+                        if special_last := tmpl_single[-1].get('SpecialToken', {}).get('id'):
+                            if not tokenizer_config:
+                                special_eos = special_last
+                            self.add_special_token['eos'] = True if special_last == special_eos else False
+                            if special_last != special_eos:
+                                logger.warning(f'Unknown trailing special token {special_last!r} in TemplateProcessing<single>')
+                    if tmpl_pair:
+                        seq_start = 1 if tmpl_pair[0].get('SpecialToken', {}).get('id') == special_first else 0
+                        seq_stop = -1 if tmpl_pair[-1].get('SpecialToken', {}).get('id') == special_last else None
+                        if seq_start == 0 or seq_stop is None:
+                            logger.warning('TemplateProcessing<single> leading/trailing special tokens do not match TemplateProcessing<pair>')
+                        if tmpl_pair := tmpl_pair[slice(seq_start, seq_stop)]:
+                            tmpl_a = tmpl_pair[0].get('Sequence', {}).get('id')
+                            tmpl_b = tmpl_pair[-1].get('Sequence', {}).get('id')
+                            if tmpl_a != 'A' or tmpl_b != 'B':
+                                logger.warning(f'Unknown sequence {tmpl_a}...{tmpl_b} in TemplateProcessing<pair>')
+                            # A [sep] [eos] B
+                            if tmpl_a == 'A' and tmpl_b == 'B' and (tmpl_pair := tmpl_pair[1:-1]):
+                                add_sep = False
+                                if special_entry := tmpl_pair[0].get('SpecialToken', {}).get('id'):
+                                    if special_entry in (special_sep, special_eos) and not special_last:
+                                        add_sep = True
+                                    if special_entry not in (special_sep, special_eos):
+                                        logger.warning(f'Unknown separator token {special_entry!r} in TemplateProcessing<pair>')
+                                else:
+                                    logger.warning(f'Unknown middle sequence {tmpl_pair[0]!r} in TemplateProcessing<pair>')
+                                if len(tmpl_pair) == 2:
+                                    if special_entry := tmpl_pair[1].get('SpecialToken', {}).get('id'):
+                                        if special_entry in (special_sep, special_eos):
+                                            add_sep = True
+                                        if special_entry not in (special_sep, special_eos):
+                                            logger.warning(f'Unknown second separator token {special_entry!r} in TemplateProcessing<pair>')
+                                    else:
+                                        logger.warning(f'Unknown second middle sequence {tmpl_pair[1]!r} in TemplateProcessing<pair>')
+                                self.add_special_token['sep'] = add_sep
+                                if add_sep and not special_sep and tokenizer_config:
+                                    tokenizer_config['sep_token'] = special_eos
+                    continue
+        if not tokenizer_config:
             return True
-        with open(tokenizer_config_file, encoding = 'utf-8') as f:
-            tokenizer_config = json.load(f)
         chat_template_alt = None
         chat_template_file = path / 'chat_template.json'
         if chat_template_file.is_file():
diff --git a/include/llama.h b/include/llama.h
index c7cb21e8d..00aa6a05f 100644
--- a/include/llama.h
+++ b/include/llama.h
@@ -1047,6 +1047,7 @@ extern "C" {
 
     LLAMA_API bool llama_vocab_get_add_bos(const struct llama_vocab * vocab);
     LLAMA_API bool llama_vocab_get_add_eos(const struct llama_vocab * vocab);
+    LLAMA_API bool llama_vocab_get_add_sep(const struct llama_vocab * vocab);
 
     LLAMA_API llama_token llama_vocab_fim_pre(const struct llama_vocab * vocab);
     LLAMA_API llama_token llama_vocab_fim_suf(const struct llama_vocab * vocab);
@@ -1090,6 +1091,7 @@ extern "C" {
     /// @param tokens The tokens pointer must be large enough to hold the resulting tokens.
     /// @return Returns the number of tokens on success, no more than n_tokens_max
     /// @return Returns a negative number on failure - the number of tokens that would have been returned
+    /// @return Returns INT32_MIN on overflow (e.g., tokenization result size exceeds int32_t limit)
     /// @param add_special Allow to add BOS and EOS tokens if model is configured to do so.
     /// @param parse_special Allow tokenizing special and/or control tokens which otherwise are not exposed and treated
     ///                      as plaintext. Does not insert a leading space.
diff --git a/src/llama-arch.cpp b/src/llama-arch.cpp
index 0bc60565d..8dadef204 100644
--- a/src/llama-arch.cpp
+++ b/src/llama-arch.cpp
@@ -198,6 +198,7 @@ static const std::map<llm_kv, const char *> LLM_KV_NAMES = {
     { LLM_KV_TOKENIZER_MASK_ID,              "tokenizer.ggml.mask_token_id"            },
     { LLM_KV_TOKENIZER_ADD_BOS,              "tokenizer.ggml.add_bos_token"            },
     { LLM_KV_TOKENIZER_ADD_EOS,              "tokenizer.ggml.add_eos_token"            },
+    { LLM_KV_TOKENIZER_ADD_SEP,              "tokenizer.ggml.add_sep_token"            },
     { LLM_KV_TOKENIZER_ADD_PREFIX,           "tokenizer.ggml.add_space_prefix"         },
     { LLM_KV_TOKENIZER_REMOVE_EXTRA_WS,      "tokenizer.ggml.remove_extra_whitespaces" },
     { LLM_KV_TOKENIZER_PRECOMPILED_CHARSMAP, "tokenizer.ggml.precompiled_charsmap"     },
diff --git a/src/llama-arch.h b/src/llama-arch.h
index 51b242c66..5b0230c15 100644
--- a/src/llama-arch.h
+++ b/src/llama-arch.h
@@ -194,6 +194,7 @@ enum llm_kv {
     LLM_KV_TOKENIZER_MASK_ID,
     LLM_KV_TOKENIZER_ADD_BOS,
     LLM_KV_TOKENIZER_ADD_EOS,
+    LLM_KV_TOKENIZER_ADD_SEP,
     LLM_KV_TOKENIZER_ADD_PREFIX,
     LLM_KV_TOKENIZER_REMOVE_EXTRA_WS,
     LLM_KV_TOKENIZER_PRECOMPILED_CHARSMAP,
diff --git a/src/llama-model-saver.cpp b/src/llama-model-saver.cpp
index a70b98923..563823dc3 100644
--- a/src/llama-model-saver.cpp
+++ b/src/llama-model-saver.cpp
@@ -228,6 +228,7 @@ void llama_model_saver::add_kv_from_model() {
     // add_kv(LLM_KV_TOKENIZER_MASK_ID,                 ???);
     add_kv(LLM_KV_TOKENIZER_ADD_BOS,                 vocab.get_add_bos());
     add_kv(LLM_KV_TOKENIZER_ADD_EOS,                 vocab.get_add_eos());
+    add_kv(LLM_KV_TOKENIZER_ADD_SEP,                 vocab.get_add_sep());
     add_kv(LLM_KV_TOKENIZER_ADD_PREFIX,              vocab.get_add_space_prefix());
     add_kv(LLM_KV_TOKENIZER_REMOVE_EXTRA_WS,         vocab.get_remove_extra_whitespaces());
     add_kv(LLM_KV_TOKENIZER_PRECOMPILED_CHARSMAP,    vocab.get_precompiled_charsmap());
diff --git a/src/llama-vocab.cpp b/src/llama-vocab.cpp
index 8b488cf97..60e630e33 100644
--- a/src/llama-vocab.cpp
+++ b/src/llama-vocab.cpp
@@ -1494,6 +1494,7 @@ struct llama_vocab::impl {
     bool add_space_prefix           = false;
     bool add_bos                    = false;
     bool add_eos                    = false;
+    bool add_sep                    = false;
     bool ignore_merges              = false;
     bool clean_spaces               = false;  // clean_up_tokenization_spaces
     bool remove_extra_whitespaces   = false;
@@ -1647,6 +1648,8 @@ void llama_vocab::impl::load(llama_model_loader & ml, const LLM_KV & kv) {
             special_sep_id  = 102;
             special_pad_id  = 0;
             special_mask_id = 103;
+
+            add_sep = true;
         } else if (tokenizer_model == "gpt2") {
             type = LLAMA_VOCAB_TYPE_BPE;
 
@@ -1786,12 +1789,15 @@ void llama_vocab::impl::load(llama_model_loader & ml, const LLM_KV & kv) {
                     tokenizer_pre == "jina-es" ||
                     tokenizer_pre == "jina-de" ||
                     tokenizer_pre == "gigachat"   ||
-                    tokenizer_pre == "jina-v1-en" ||
                     tokenizer_pre == "jina-v2-es" ||
-                    tokenizer_pre == "jina-v2-de" ||
+                    tokenizer_pre == "jina-v2-de") {
+                pre_type = LLAMA_VOCAB_PRE_TYPE_GPT2;
+            } else if (
+                    tokenizer_pre == "jina-v1-en" ||
                     tokenizer_pre == "jina-v2-code" ||
                     tokenizer_pre == "roberta-bpe") {
                 pre_type = LLAMA_VOCAB_PRE_TYPE_GPT2;
+                add_sep = true;
             } else if (
                     tokenizer_pre == "refact") {
                 pre_type = LLAMA_VOCAB_PRE_TYPE_REFACT;
@@ -1901,6 +1907,7 @@ void llama_vocab::impl::load(llama_model_loader & ml, const LLM_KV & kv) {
             clean_spaces = true;
             add_bos = true;
             add_eos = false;
+            add_sep = true;
         } else if (type == LLAMA_VOCAB_TYPE_UGM) {
             pre_type = LLAMA_VOCAB_PRE_TYPE_DEFAULT;
             add_bos = false;
@@ -2040,7 +2047,7 @@ void llama_vocab::impl::load(llama_model_loader & ml, const LLM_KV & kv) {
             }
         }
 
-        // Handle add_bos and add_eos
+        // Handle add_bos, add_eos and add_sep
         {
             bool temp = true;
 
@@ -2050,6 +2057,9 @@ void llama_vocab::impl::load(llama_model_loader & ml, const LLM_KV & kv) {
             if (ml.get_key(LLM_KV_TOKENIZER_ADD_EOS, temp, false)) {
                 add_eos = temp;
             }
+            if (ml.get_key(LLM_KV_TOKENIZER_ADD_SEP, temp, false)) {
+                add_sep = temp;
+            }
         }
 
         // auto-detect special tokens by text
@@ -3281,6 +3291,10 @@ bool llama_vocab::get_add_eos() const {
     return pimpl->add_eos;
 }
 
+bool llama_vocab::get_add_sep() const {
+    return pimpl->add_sep;
+}
+
 bool llama_vocab::get_ignore_merges() const {
     return pimpl->ignore_merges;
 }
@@ -3348,6 +3362,11 @@ int32_t llama_vocab::tokenize(
                         bool   add_special,
                         bool   parse_special) const {
     auto res = tokenize(std::string(text, text_len), add_special, parse_special);
+    if (res.size() >= static_cast<size_t>(std::numeric_limits<int32_t>::max())) {
+        LLAMA_LOG_ERROR("%s: tokenization result size %zu exceeds int32_t limit\n", __func__, res.size());
+        return std::numeric_limits<int32_t>::min();
+    }
+
     if (n_tokens_max < (int) res.size()) {
         // LLAMA_LOG_ERROR("%s: too many tokens\n", __func__);
         return -((int) res.size());
@@ -3479,6 +3498,10 @@ bool llama_vocab_get_add_eos(const struct llama_vocab * vocab) {
     return vocab->get_add_eos();
 }
 
+bool llama_vocab_get_add_sep(const struct llama_vocab * vocab) {
+    return vocab->get_add_sep();
+}
+
 llama_token llama_vocab_fim_pre(const struct llama_vocab * vocab) {
     return vocab->token_fim_pre();
 }
diff --git a/src/llama-vocab.h b/src/llama-vocab.h
index 4753be686..4e8508d81 100644
--- a/src/llama-vocab.h
+++ b/src/llama-vocab.h
@@ -76,6 +76,7 @@ struct llama_vocab {
     bool get_add_space_prefix          () const;
     bool get_add_bos                   () const;
     bool get_add_eos                   () const;
+    bool get_add_sep                   () const;
     bool get_ignore_merges             () const;
     bool get_clean_spaces              () const;
     bool get_remove_extra_whitespaces  () const;
diff --git a/tools/server/utils.hpp b/tools/server/utils.hpp
index f3e0392a4..f8fab2c86 100644
--- a/tools/server/utils.hpp
+++ b/tools/server/utils.hpp
@@ -271,12 +271,20 @@ static llama_tokens format_rerank(const struct llama_vocab * vocab, const llama_
     }
 
     result.reserve(doc.size() + query.size() + 4);
-    result.push_back(llama_vocab_bos(vocab));
+    if (llama_vocab_get_add_bos(vocab)) {
+        result.push_back(llama_vocab_bos(vocab));
+    }
     result.insert(result.end(), query.begin(), query.end());
-    result.push_back(eos_token);
-    result.push_back(llama_vocab_sep(vocab));
+    if (llama_vocab_get_add_eos(vocab)) {
+        result.push_back(eos_token);
+    }
+    if (llama_vocab_get_add_sep(vocab)) {
+        result.push_back(llama_vocab_sep(vocab));
+    }
     result.insert(result.end(), doc.begin(), doc.end());
-    result.push_back(eos_token);
+    if (llama_vocab_get_add_eos(vocab)) {
+        result.push_back(eos_token);
+    }
 
     return result;
 }