DeepSeek V3.2 vs OpenAI GPT-5 Nano
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- GPT-5 Nano is 2.3× cheaper at a typical mix of 3 input tokens per output token.
- GPT-5 Nano accepts longer prompts: 400K vs 164K tokens.
- DeepSeek V3.2 is the newer model (released 2025-12-01).
| DeepSeek V3.2 | GPT-5 Nano | |
|---|---|---|
| Vendor | DeepSeek | OpenAI |
| Released | 2025-12-01 | 2025-08-07 |
| Input / 1M | $0.28 | $0.05 |
| Output / 1M | $0.42 | $0.40 |
| Cached input / 1M | $0.028 | $0.0050 |
| Blended / 1M (3:1) | $0.315 | $0.138 |
| Context | 164K | 400K |
| Max output | 66K | 128K |
| Accepts | text | text, image, file |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 9 | 4 |
| Cheapest provider, output | $0.31 | $0.40 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | Operational | Operational |
Cost calculator
DeepSeek V3.2
$23.10 per month$0.77 per day
GPT-5 Nano
$9.00 per month$0.30 per day
GPT-5 Nano saves $14.10 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare DeepSeek V3.2 with