MiniMax releases M3.1 Flash, a 428B open-weight MoE under a conditional commercial licence
MiniMax has published the weights for M3.1 Flash, a multimodal mixture-of-experts model of roughly 428 billion total parameters (about 23 billion active per token) with a context window up to one million tokens, downloadable now in 8-bit. It is open weights rather than open source: the MiniMax Community Licence allows commercial use, but asks for attribution and a one-time notice, and requires separate written authorisation above 20 million US dollars in annual revenue.