fix(hunyuan-image3): preserve serialized tokenizer backend - #1332
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Load tokenizer.json as a Tokenizers backend when available so Transformers 5.x cannot silently drop the custom ByteLevel decoder. Fail fast if decoder preservation does not succeed, protecting prompt BPE encoding and COT decoding.
helloyongyang
approved these changes
Aug 5, 2026
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Load tokenizer.json as a Tokenizers backend when available so Transformers 5.x cannot silently drop the custom ByteLevel decoder. Fail fast if decoder preservation does not succeed, protecting prompt BPE encoding and COT decoding.