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[Bugfix] Fix idefics3 tie_word_embeddings (#25454)

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Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
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Isotr0py 2025-09-23 18:06:48 +08:00 committed by GitHub
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commit 231c2c63e4
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vllm/model_executor/models/idefics3.py
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@ -608,7 +608,7 @@ class Idefics3ForConditionalGeneration(nn.Module, SupportsMultiModal,
prefix=maybe_prefix(prefix, "lm_head"), prefix=maybe_prefix(prefix, "lm_head"),
) )
if self.config.text_config.tie_word_embeddings: if self.config.text_config.tie_word_embeddings:
self.lm_head.weight = self.model.text_model.wte.weight self.lm_head.weight = self.model.text_model.embed_tokens.weight
self.logits_processor = LogitsProcessor(config.text_config.vocab_size) self.logits_processor = LogitsProcessor(config.text_config.vocab_size)
def _parse_and_validate_image_input( def _parse_and_validate_image_input(