Comparison · prices as of 2026-07-04
GPT-5.1 vs DeepSeek V3.2
On price alone, DeepSeek V3.2 (DeepSeek) runs about 90% cheaper than GPT-5.1 for a typical chat workload (2K input + 500 output tokens, 1,000 requests/day). Whether that's the right trade depends on the capability gap — pricing below, verify quality on your own evals.
| Spec | GPT-5.1 | DeepSeek V3.2 |
|---|---|---|
| Input / MTok | $1.25 | $0.28 |
| Output / MTok | $10 | $0.42 |
| Context window | 400K | 128K |
| Max output | 128K | 8K |
| Class | frontier | workhorse |
| Reference workload / month | $225.00 | $23.10 |
Sources: OpenAI pricing · DeepSeek pricing. Run your own numbers in the cost calculator.