thepatch/t5gemma-b-b-ul2-GGUF

T5Gemma-b-b-ul2 Encoder + Tokenizer — GGUF (for sa3.cpp)

The shared text encoder + tokenizer for sa3.cpp. GGUF conversion of the frozen google/t5gemma-b-b-ul2 encoder (encoder-only at inference) that Stable Audio 3 uses to embed text prompts.

This component is identical across all three SA3 variants (medium, small-music, small-sfx), so it lives in its own repo and is fetched once — the per-variant conditioner ships separately in each model repo. Validated against the PyTorch reference at cosine similarity ~1.0.

Files

component	file	notes
text encoder	t5gemma-b-b-ul2-encoder-0.3B-v1.0-F32.gguf	encoder weights only (no conditioner)
tokenizer	t5gemma-b-b-ul2-v1.0-vocab.gguf	Gemma byte-fallback BPE

Pair these with any SA3 variant repo's DiT + SAME + conditioner: medium · small-music · small-sfx. tools/download_models.py fetches this repo automatically alongside whichever variant you pick.

License

This is a format conversion of google/t5gemma-b-b-ul2, released under the Gemma Terms of Use (including the use restrictions in Section 3.2). Those terms carry over to this converted encoder + tokenizer.

Relationship to the original

A format conversion (weights → GGUF) for inference in sa3.cpp — no retraining. See sa3.cpp/docs/DISTRIBUTION.md.