OpenAI: gpt-oss-120b vs OpenAI: GPT-5.3 Chat
OpenAI: gpt-oss-120b is cheaper on output tokens, while OpenAI: gpt-oss-120b offers a larger context window. Choose OpenAI: gpt-oss-120b or OpenAI: GPT-5.3 Chat based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | OpenAI: gpt-oss-120b | OpenAI: GPT-5.3 Chat |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $0.03 | $1.75 |
| Output / 1M tokens | $0.15 | $14.00 |
| Context window | 131K | 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.