Eleven of nineteen open language models use Apache 2.0
The rest split into MIT, modified MIT and four custom licences. Size does not predict which, so read the licence file.
Stories
Open speech models now run from 80 million to 35 billion parameters
Open text-to-speech covers browser-sized voices, cloning and design in the middle, and a 35B model for multi-character scenes. Size tells you the job. It does not tell you the licence.
Decision models are starting to have family trees
Fine-tunes now stack on fine-tunes. REAX 1.1 descends from Perplexity's pplx-decider, Torchcast from StartLux, and a recommender reranker from Kev-9B. Licences and quirks travel with them.