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Carbon-A-1.2B

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Hugging Face Biology Research 156

Makes the model load correctly with Transformers 5.x while keeping 4.56+ working.

• modeling_generanno.py: compute default RoPE inverse frequencies locally (v5 dropped ROPE_INIT_FUNCTIONS["default"]), register original_inv_freq as a buffer, and recompute RoPE buffers in _init_weights. Without this, v5 loads the model with uninitialized inv_freq buffers and produces wrong predictions without any error.
• requirements.txt: transformers>=4.56,<6; drop the huggingface_hub<1 pin.
• infer_packed.py: torch_dtype= → dtype=.
• README: download/install steps in a working order, a minimal Python example, and a note on full-length attention memory.
• INFERENCE.md: drop the pinned-version statement. provenance.json: record modeling_generanno.py as modified from the source.

Checked on 4.56.0, 4.57.6 and 5.17.0: all checkpoint tensors load unchanged, and predictions are bit-identical to the current code on 4.56.0.