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OpenAI: gpt-oss-120b

modeltested · static-verifiedscore 20/100signed passport ✓published 442d ago · verified 2026-10-20

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. It activates 5.1B parameters per forward pass and is optimize

Declared tools (3)

text->texttool-callingstructured-outputs

model:openrouter:openai/gpt-oss-120b