gpt-oss-120b vs OpenAI: GPT-5.1 Chat
Both have similar output pricing, while OpenAI: GPT-5.1 Chat offers a larger context window. Choose gpt-oss-120b or OpenAI: GPT-5.1 Chat based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | gpt-oss-120b | OpenAI: GPT-5.1 Chat |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | — | $1.25 |
| Output / 1M tokens | — | $10.00 |
| Context window | — | 128K |
| Parameters | 117B | — |
| Open weights | Yes | — |
| Released | Aug 2025 | — |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.