OpenAI: gpt-oss-120b

Name: OpenAI: gpt-oss-120b
Price: 0.6 USD
Author: openai

OpenAI: gpt-oss-120b is openai's model. It is not yet scored on the meo first-party benchmark; aggregated third-party results and OpenRouter metadata are shown below.

Aggregated third-party benchmarks

Benchmark	Value	Source
AA Coding Index	29	artificial_analysis
AA Intelligence Index	33	artificial_analysis
AA Math Index	93	artificial_analysis
AIME 2025	93.4%	artificial_analysis
GPQA Diamond	78.2%	artificial_analysis
Humanity's Last Exam	18.5%	artificial_analysis
IFBench	69.0%	artificial_analysis
LCR (long-context reasoning)	50.7%	artificial_analysis
LiveCodeBench	87.8%	artificial_analysis
MMLU-Pro	80.8%	artificial_analysis
SciCode	38.9%	artificial_analysis
τ²-bench	65.8%	artificial_analysis
Terminal-Bench Hard	23.5%	artificial_analysis
Median output throughput (tokens/s)	358	artificial_analysis
Median time to first token (s)	0.53	artificial_analysis

Artificial Analysis (artificialanalysis.ai). Redistribution requires an AA commercial license.

Model details

Lab: OpenAI
Released: 2025-08-05
Weights: Open
Context: 131K
Max output: 66K
Knowledge cutoff: 2024-06-30
Price in: $0.15/M
Price out: $0.60/M
Modality: text->text

View on OpenRouter ↗Hugging Face ↗

Sources: openrouter · artificial_analysis

FAQ

Is OpenAI: gpt-oss-120b open weights?

Yes — OpenAI: gpt-oss-120b is released with open weights.