DeepSeek V3 vs DeepSeek Reasoner
Both have similar output pricing, while DeepSeek Reasoner offers a larger context window. Choose DeepSeek V3 or DeepSeek Reasoner based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V3 | DeepSeek Reasoner |
|---|---|---|
| Provider | DeepSeek | DeepSeek |
| Input / 1M tokens | $0.14 | $0.14 |
| Output / 1M tokens | $0.28 | $0.28 |
| Context window | 164K | 1M |
| Parameters | 671B | — |
| Open weights | Yes | Yes |
| Released | Dec 2025 | Dec 2025 |
| SWE-bench Verified score | 42.0 | — |
| LMArena (Chatbot Arena) Elo score | 1375 | — |
| GPQA Diamond score | 67.6 | 83.4 |
| FrontierMath score | 1.7 | — |
| Epoch Capabilities Index score | 136 | — |
FAQ
Is DeepSeek V3 or DeepSeek Reasoner cheaper?
DeepSeek V3 and DeepSeek Reasoner have comparable output pricing.
Which has the larger context window, DeepSeek V3 or DeepSeek Reasoner?
DeepSeek Reasoner has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.