gpt-oss-120b
by OpenAI
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. I
Models
gpt-oss-120b
Added 10 July 2026
Overview
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 optimized...
How to use / API access
Call via OpenRouter with model id `openai/gpt-oss-120b`.
- openrouter ·
openai/gpt-oss-120bDocs
OpenRouter id: openai/gpt-oss-120b
Benchmarks
- Intelligence Index (artificial-analysis): 11.6 index
- Coding Index (artificial-analysis): 30.4 index
- Agentic Index (artificial-analysis): 3.7 index
- Design Arena 3d (other): 902 elo · #119
- Design Arena codecategories (other): 965 elo · #128
- Design Arena dataviz (other): 987 elo · #116
- Design Arena gamedev (other): 995 elo · #119
Notes
gpt-oss-120b is listed in the EDNA Models directory from the OpenRouter catalogue.
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