gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases.
| Model | Perf | Speed | Context | Max out | Input | Output |
|---|---|---|---|---|---|---|
OpenAI: gpt-oss-120b (free)RT | — | — | 131K | 131K | — | — |
| — | — | 131K | 131K | — | — | |
| — | — | 131K | 131K | $0.03 | $0.11 | |
| — | — | 131K | — | $0.04 | $0.19 | |
| — | — | 131K | 66K | $0.08 | $0.3 |
/v1/models/openrouter/openai/gpt-oss-120b:freegpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases.