DeepSeek Reasoner
active Active
DeepSeek Reasoner is an active DeepSeek LLM API model. As of May 24, 2026 it has no announced deprecation or retirement date.
Lifecycle & specs
- Provider
- DeepSeek
- API model ID
deepseek-reasoner- Status
- active
- Released
- Jan 20, 2025
- Context window
- 131,072 tokens
Source: official DeepSeek documentation ↗ · ✓ verified