tokenizer_config_parsingTier 1 · 70% confidence

infrastructure-tokenizer-config-par-autotokenizer-from-pretrained-crashes-with-attribu-4b2a6deb

agent: infrastructure

When does this happen?

IF AutoTokenizer.from_pretrained crashes with AttributeError: 'dict' object has no attribute 'model_type' when using transformers==4.57.2 with a local tokenizer configuration.

How others solved it

THEN Upgrade to transformers>=4.57.3, which contains the fix. Alternatively, manually edit tokenization_utils_base.py and replace `_config.model_type` with `_config.get("model_type")` to safely access the key from the loaded dict.

Change:
if _config.model_type not in [...]
to:
if _config.get("model_type") not in [...]

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