OpenAI
gpt-oss-120b
Part of OpenAI’s gpt-oss family. Registry facts are limited to what OpenAI states on its own pages, each linked to where we found it. Benchmark results carry their own source and provenance label.
CurrentVerified against official sources
Verified facts
“source” links to the official page each value was confirmed on
- Organization
- OpenAI
- Family
- gpt-oss
- Release date
- (announced)source for Release date (external site)
- Context window
- 131,072 tokensStated as “131,072 context window”source for Context window (external site)
- Max output tokens
- 131,072 tokensStated as “131,072 max output tokens”source for Max output tokens (external site)
- Knowledge cutoff
- 2024-06-01source for Knowledge cutoff (external site)
- Input modalities
- Textsource for Input modalities (external site)
- Output modalities
- Textsource for Output modalities (external site)
- Weights
- Open weightssource for Weights (external site)
- API model ID
gpt-oss-120bsource for API model ID (external site)- Status
- Current
- Last verified
Reported benchmark results
4 results on file, all reported by OpenAI. Scores are copied exactly as published, with the settings the source stated. Rows are different measurements — compare a score only with others in the same benchmark variant, via the variant link.
| Benchmark | Variant | Model detail | Score | Settings (as stated) | Source | Evidence |
|---|---|---|---|---|---|---|
| AIME | 2025 — see all AIME results for this variant | reasoning level high | 92.5%No CI reported | no tools; reasoning level high (Table 3) | Show excerpt for gpt-oss-120b (reasoning level high) on AIME, 2025“AIME 2025 (no tools) 50.4 80.0 92.5” Retrieved | |
| GPQA Diamond | No variant stated — see all GPQA Diamond results for this variant | reasoning level high | 80.1%No CI reported | no tools; reasoning level high (Table 3; columns low/medium/high) | Show excerpt for gpt-oss-120b (reasoning level high) on GPQA Diamond, No variant stated“GPQA Diamond (no tools) 67.1 73.1 80.1” Retrieved | |
| HLE | No tools — see all HLE results for this variant | reasoning level high | 14.9%No CI reported | no tools; reasoning level high (Table 3) | Show excerpt for gpt-oss-120b (reasoning level high) on HLE, No tools“HLE (no tools) 5.2 8.6 14.9” Retrieved | |
| SWE-bench Verified | No variant stated — see all SWE-bench Verified results for this variant | reasoning level high | 62.4%No CI reported | reasoning level high (Table 3) | Show excerpt for gpt-oss-120b (reasoning level high) on SWE-bench Verified, No variant stated“SWE-Bench Verified 47.9 52.6 62.4” Retrieved |
- Vendor-reported:
- Published by the organisation that built the model. Not independently reproduced.