DeepSeek-V3.1-Terminus
Open weights Active Text LLM
MoE deepseek-v3-1-terminus
V3.1 update fixing language mixing and improving code and search agents.
Released
Sep 22, 2025
Context window
131K tokens
Max output
Not disclosed
Parameters
671B 37B active
Input price
Not disclosed
Output price
Not disclosed
Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.
Pricing
Launch priceSep 22, 2025
$0.56 in / $1.68 out
Current price
No longer sold
Specifications
- Developer
- DeepSeek
- Model type
- Text LLM
- Architecture
- MoE
- Parameters
- 671B (37B active)
- Input
- Text
- Output
- Text
- Knowledge cutoff
- Not disclosed
- License
- MIT License
- API access
- No first-party API
- Capabilities
- Agentic Reasoning Tool use