GPT-5.1 vs DeepSeek-R1
DeepSeek-R1 is cheaper on output tokens, while GPT-5.1 offers a larger context window. Choose GPT-5.1 or DeepSeek-R1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.1 | DeepSeek-R1 |
|---|---|---|
| Provider | Azure | Azure |
| Input / 1M tokens | $1.25 | $1.35 |
| Output / 1M tokens | $10.00 | $5.40 |
| Context window | 272K | 164K |
| Parameters | — | 671B |
| Open weights | No | Yes |
| Released | Nov 2025 | Jan 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.