rumik-oss 1 Copyright 2026 Rumik AI This model is a derivative work. CC-BY-NC 4.0 requires that redistribution indicate what was changed relative to the upstream material; this file records those changes. ----------------------------------------------------------------------- Lineage: CohereLabs/tiny-aya-fire vocab 261,008 https://huggingface.co/CohereLabs/tiny-aya-fire Licensed CC-BY-NC 4.0 with the Cohere Labs acceptable-use addendum. -> rumik-ai/rumik-oss-1-base vocab 277,395 https://huggingface.co/rumik-ai/rumik-oss-1-base Named-speaker text-to-speech training. -> rumik-ai/rumik-oss-1 vocab 277,404 (this model) Delivery-control fine-tuning and reinforcement learning. ----------------------------------------------------------------------- Modifications made by Rumik AI, relative to tiny aya fire: 1. Vocabulary extended from 261,008 to 277,404 tokens: - 16,384 Mimi codec unit tokens _, ids 261008-277391 - 3 structure delimiters , , ids 277392-277394 - 9 delivery and vocalization tags, ids 277395-277403 The first two groups were added for rumik-oss 1 base; the tags were added for rumik-oss 1. Input and output embedding matrices were resized accordingly. 2. A stop-prediction head (`stop_predictor`) was added on top of the final hidden state to terminate audio generation. 3. The model was post-trained for text-to-speech on multilingual Indic and English speech data, followed by a reinforcement-learning stage. 4. Model class and configuration were reimplemented as RumikOSSForCausalLM / RumikOSSConfig (model_type "rumik_oss"), subclassing the transformers Cohere2 implementation. 5. The inherited chat template was removed. This is not a chat model and does not take a `messages` list; it uses the flat prompt layout documented in README.md. ----------------------------------------------------------------------- Also bundled: Mimi codec (codec/) - Kyutai https://huggingface.co/kyutai/mimi Licensed CC-BY-4.0. Redistributed unmodified. -----------------------------------------------------------------------