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OpenAI: gpt-oss-120b

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

BenchmarkValueSource
AA Coding Index29artificial_analysis
AA Intelligence Index33artificial_analysis
AA Math Index93artificial_analysis
AIME 202593.4%artificial_analysis
GPQA Diamond78.2%artificial_analysis
Humanity's Last Exam18.5%artificial_analysis
IFBench69.0%artificial_analysis
LCR (long-context reasoning)50.7%artificial_analysis
LiveCodeBench87.8%artificial_analysis
MMLU-Pro80.8%artificial_analysis
SciCode38.9%artificial_analysis
τ²-bench65.8%artificial_analysis
Terminal-Bench Hard23.5%artificial_analysis
Median output throughput (tokens/s)358artificial_analysis
Median time to first token (s)0.53artificial_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
—
Knowledge cutoff
2024-06-30
Price in
$0.04/M
Price out
$0.18/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.