On Monday, Mistral AI announced a new AI language model called Mixtral 8x7B, a “Mixture of experts” model with open weights that reportedly truly matches OpenAI’s GPT-3.5 in performance-an achievement that has been claimed by others in the past but is being taken seriously by AI heavyweights such as OpenAI’s Andrej Karpathy and Jim Fan. Most notably, Mistral’s models run locally with open weights that can be downloaded and used with fewer restrictions than closed AI models from OpenAI, Anthropic, or Google. Mistral began offering beta access to an API for three levels of Mistral models on Monday.

Source: Everybodys talking about Mistral, an upstart French challenger to OpenAI