OpenAI has finally released open-weight language models
MIT Technology Review - AI
Aug 5, 2025 17:00
Grace Huckins
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airesearchtechnology
Summary
OpenAI has released its first open-weight language models since GPT-2, called “gpt-oss,” in two sizes with performance comparable to o3-mini and o4-mini models. These models can be freely downloaded and run, marking a significant move toward greater openness and accessibility in the AI field.
OpenAI has finally released its first open-weight large language models since 2019’s GPT-2. These new “gpt-oss” models are available in two different sizes and score similarly to the company’s o3-mini and o4-mini models on several benchmarks. Unlike the models available through OpenAI’s web interface, these new open models can be freely downloaded, run, and even…