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Fix Transformers backend compatibility check #15290

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Fix Transformers backend compatibility check #15290

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5 changes: 1 addition & 4 deletions vllm/model_executor/model_loader/utils.py
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Original file line number Diff line number Diff line change
@@ -36,10 +36,7 @@ def is_transformers_impl_compatible(
mod = module or getattr(transformers, arch, None)
if mod is None:
return False
if hasattr(mod, "supports_backend"):
return mod.is_backend_compatible()
else:
return mod._supports_flex_attn
return mod.is_backend_compatible()


def resolve_transformers_fallback(model_config: ModelConfig,