DeepSeek V3.1 Terminus

deepseek/deepseek-v3.1-terminus

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...

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Context window: 164K
Input: Text
Output: Text
Released: 2025-09-22

Max output: 33K
Knowledge cutoff: 2025-07
Model parameters: 685B
Weights: Open
License: mit
Capabilities: Open weight, Reasoning, Structured, Temperature, Tool call

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Performance

Overall capability

44.0/100

Coding: 37.8
Reasoning: 42.1
Professional work: 38.0
Knowledge & language: 54.9


Humanity’s Last ExamDeepSeek V3.1 Terminus (Reasoning)	Reasoning	Artificial Analysis	2026-11-05
IFBench（Artificial Analysis）DeepSeek V3.1 Terminus (Reasoning)	Knowledge & language	Artificial Analysis	2026-11-05
GDPval-AA	Professional work	Artificial Analysis	2026-11-05
AA-LCRDeepSeek V3.1 Terminus (Reasoning)	Knowledge & language	Artificial Analysis	2026-11-05
AutomationBench-AADeepSeek V3.1 Terminus (Reasoning)	Professional work	Artificial Analysis	2026-11-05
Terminal-Bench 4.0 (AA rerun)DeepSeek V3.1 Terminus (Reasoning)	Coding	Artificial Analysis	2026-11-05
AA-Briefcase	Professional work	Artificial Analysis	2026-11-05
SciCodeDeepSeek V3.1 Terminus (Reasoning)	Coding	Artificial Analysis	2026-11-05

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ModelRegistry · Catalog updated 2026-11-05