Model Overview
DeepSeek · Active Model
- Long-Context
- API Available
- Production Ready
DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...
- Developer
- DeepSeek
- Release Date
- September 22, 2025
- Context Window
- 163,840 tokens≈ 218 words
- API Access
- Publicly AvailableIntegrate via official API
- Input Cost
- $0.27per million tokens
- Output Cost
- $0.95per million tokens