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OpenAI: gpt-oss-120b

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openai/gpt-oss-120b

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases.

by OpenAI|Aug 5, 2025|128K context|$0.125/M in|$0.875/M out

OpenAI: gpt-oss-20b