DeepSeek Reasoner
API ID deepseek-reasoner
deepseek-reasoner was a DeepSeek model.
- Status
- Retired
- Released
- —
- Shutdown
- Jul 24, 2026
- Replacement
- DeepSeek-V4.1-Flashdeepseek-flash
deepseek-reasoner stopped serving on July 24, 2026. Recommended replacement: deepseek-flash.
How to migrate to DeepSeek-V4.1-Flash
Benchmarks
Scores as each source published themNo comparison. Pick a model to see the difference on each benchmark.
Epoch AI
| Benchmark | DeepSeek Reasoner | Setting | Run | Source |
|---|---|---|---|---|
| GPQA Diamond | 83.4% | Dec 16, 2025 | source | |
| OTIS Mock AIME 2024-2025 | 87.8% | Dec 16, 2025 | source |
Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
Price history
USD per 1M tokens, standard tierNo price history yet.
Prices
USD per 1M tokens, every type and band, by tierNo published prices.
Changelog
Changes we detected on DeepSeek's pages- Retired
deepseek-reasoner has been retired
Info
Last checked · Sources: DeepSeek pricing, DeepSeek updates