diff --git a/modules/sd_models.py b/modules/sd_models.py
index 494c5bf1d..69abadc7e 100644
--- a/modules/sd_models.py
+++ b/modules/sd_models.py
@@ -1573,6 +1573,8 @@ def unload_model_weights(op='model'):
             disable_offload(model_data.sd_model)
             move_model(model_data.sd_model, 'meta')
         model_data.sd_model = None
+        from modules.sdnq.common import reset_compile_caches
+        reset_compile_caches() # dead compiled-dequant graphs and their lifetime recompile counters otherwise accumulate across switches
         devices.torch_gc(force=True, reason='unload')
         log.debug(f'Unload {op}: {memory_stats()} fn={fn}')
     elif (op == 'refiner') and model_data.sd_refiner:
diff --git a/modules/sdnq/common.py b/modules/sdnq/common.py
index 92801ce25..d82bb4823 100644
--- a/modules/sdnq/common.py
+++ b/modules/sdnq/common.py
@@ -368,6 +368,22 @@ else:
         return fn
 
 
+def reset_compile_caches():
+    """Drop compiled graphs and dynamo's lifetime recompile counters at model unload.
+
+    Freed layers leave their guards invalid, so the dead graphs cannot be
+    reused, but the per-frame lifetime compile counter keeps climbing and a
+    fullgraph compile hard-fails (FailOnRecompileLimitHit) once it crosses the
+    accumulated limit; enough model or quant switches in one process get there.
+    The reset is global, so call it only when the compiled graphs' owner is
+    being discarded.
+    """
+    if check_torch_compile():
+        from modules.logger import log
+        torch._dynamo.reset()
+        log.debug('SDNQ compile: dynamo reset')
+
+
 common_skip_keys = (
     ".time_embed",
     ".context_embedder",