New: connect Claude & other AIs to GenAIList over MCP — research the catalog and contribute to the shared knowledge base. Learn how →
gpt-oss-120b
About gpt-oss-120b
gpt-oss-120b is an AI model developed by OpenAI, in the language category, released in 2025, made available as an open-weights model with 116.8B params.
On this page you'll find gpt-oss-120b's full specifications, including 37 benchmark results. Review provider pricing and benchmark scores below, or compare gpt-oss-120b head-to-head with other language models.
Links
Run gpt-oss-120b locally — what to buy
Share this build ↗Sized to what gpt-oss-120b actually needs (~8k context at Q4), not to the biggest GPU: Good = cheapest that runs it, Better = best value, Best = most headroom. Speed is a hardware estimate; anything past ~120 tok/s is shown as instant.
Software support
✓ measured · · compatible · — not supported. Informational only — speed is hardware-based.
Community
No reports yet. Own this model on some hardware? Be the first to confirm it runs.
No comments yet. Start the discussion.
gpt-oss-120b benchmark scores▶
| Benchmark | Category | Score | Variant |
|---|---|---|---|
| TAU-bench Airline | agentic | 49.2% | high |
| TAU-bench Airline | agentic | 49.2% | high reasoning |
| TAU-bench Retail | agentic | 67.8% | high reasoning |
| TAU-bench Retail | agentic | 67.8% | high |
| Aider Polyglot | code | 44.4% | high |
| Aider Polyglot | code | 44.4% | high reasoning |
| Codeforces Elo | code | 2,622 | high-with-tools-elo |
| Codeforces Elo | code | 2,463 | high reasoning, no tools |
| Codeforces Elo | code | 2,463 | high-no-tools-elo |
| LiveCodeBench v5 | code | 74.53% | |
| SWE-bench Verified | code | 62.4% | high |
| SWE-bench Verified | code | 62.4% | high reasoning |
| MMLU | general | 90% | high |
| MMLU | general | 90% | high reasoning |
| MMMLU | general | 81.3% | high reasoning |
| MMMLU | general | 81.3% | high-avg-14lang |
| AIME 2024 | math | 96.6% | high-with-tools |
| AIME 2024 | math | 95.8% | high reasoning, no tools |
| AIME 2024 | math | 95.8% | high-no-tools |
| AIME 2024 | math | 89.58% | |
| AIME 2025 | math | 97.9% | high-with-tools |
| AIME 2025 | math | 92.5% | high reasoning, no tools |
| AIME 2025 | math | 92.5% | high-no-tools |
| AIME 2025 | math | 84.59% | |
| HMMT February 2025 | math | 81.88% | |
| Omni-MATH-HARD | math | 57.76% | |
| GPQA Diamond | reasoning | 80.9% | high-with-tools |
| GPQA Diamond | reasoning | 80.1% | high reasoning, no tools |
| GPQA Diamond | reasoning | 80.1% | high-no-tools |
| GPQA Diamond | reasoning | 77.04% | |
| Humanity's Last Exam | reasoning | 19% | high-with-tools |
| Humanity's Last Exam | reasoning | 14.9% | high reasoning, no tools |
| Humanity's Last Exam | reasoning | 14.9% | high-no-tools |
| HealthBench | safety | 57.6% | high |
| HealthBench | safety | 57.6% | high reasoning |
| HealthBench Hard | safety | 30% | high |
| HealthBench Hard | safety | 30% | high reasoning |
More models like gpt-oss-120b
Frequently asked questions
What is gpt-oss-120b? ▶
gpt-oss-120b is an AI model developed by OpenAI, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.
Who created gpt-oss-120b? ▶
gpt-oss-120b was developed by OpenAI and released in 2025.
Is gpt-oss-120b open source or proprietary? ▶
gpt-oss-120b ships as an open-weights model: you can download and self-host the weights, though the licence may place some restrictions on use.
How much does gpt-oss-120b cost? ▶
Pricing for gpt-oss-120b depends on the provider. See the providers table on this page for the latest API rates.
How does gpt-oss-120b perform on benchmarks? ▶
gpt-oss-120b is benchmarked across 37 evaluations on GenAIList, including TAU-bench Airline (49.2%). See the full benchmark table below and compare it with other models.
Know a great video about gpt-oss-120b?
Add YouTube Video
Add Tweet/Discussion
Report an Issue
Help us maintain accurate information in our database.
Suggest an Edit
Tell us what needs to be changed or corrected for