gpt-oss-120b
gpt-oss-120b — OpenAI text model with an Intelligence Index of 28, a 256K-token context window and a blended price of $0.2/1M tokens (open weights).
Key specifications
| Intelligence Index | 28 |
|---|---|
| Coding Index | 30.4 |
| Agentic Index | 13.2 |
| Arena Elo | 0 |
| Context window (K tokens) | 256 |
| Blended price ($/1M tokens) | 0.2 |
| Output speed (tokens/s) | 272 |
About gpt-oss-120b
The gpt-oss-120b is a text only model from OpenAI with an Intelligence Index of 28.0, a Coding Index of 30.4 and a 256K-token context window. It runs at a blended price of $0.20 per million tokens and generates about 272 tokens/s. It is open weights, so it can also be self-hosted. Leaderboard indices are a strong signal but only part of real-world quality, which also depends on tool use, latency and task fit.
The comparisons below show how gpt-oss-120b stacks up against the alternatives people most often weigh against it, with the specific numbers laid out side by side.
Frequently asked questions
Is the gpt-oss-120b any good?
gpt-oss-120b — OpenAI text model with an Intelligence Index of 28, a 256K-token context window and a blended price of $0.2/1M tokens (open weights).
What are the key specs of the gpt-oss-120b?
See the specification table above for the full breakdown.