GPT-5.1 Chat vs OpenAI: GPT-5.3 Chat
GPT-5.1 Chat is cheaper on output tokens. Choose GPT-5.1 Chat or OpenAI: GPT-5.3 Chat based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.1 Chat | OpenAI: GPT-5.3 Chat |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $1.25 | $1.75 |
| Output / 1M tokens | $10.00 | $14.00 |
| Context window | 128K | 128K |
| Parameters | — | — |
| Open weights | No | — |
| Released | Nov 2025 | — |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.