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V3.1 Terminus

byDeepSeek

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...

Input Price$1.64/1M tokens
Output Price$2.75/1M tokens
Intelligence33.9
Coding33.7

Specifications

Technical details and pricing.

ProviderDeepSeek
Context Window163,840 tokens
Release DateSep 22, 2025
ModalitiesText

Benchmarks

10 benchmark scores from Artificial Analysis.

GPQA79.2%
MMLU Pro85.1%
HLE15.2%
LiveCodeBench79.8%
AIME 202589.7%
SciCode40.6%
LCR65.0%
IFBench57.0%
Tau237.1%
TerminalBench Hard30.3%

Composite Indices

Intelligence, Coding, Math

Standard Benchmarks

Academic and industry benchmarks

Frequently Asked Questions

What is V3.1 Terminus good for?

Use V3.1 Terminus for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.

How much does V3.1 Terminus cost?

Pricing is based on usage. Current rates are $1.64/1M tokens for input and $2.75/1M tokens for output.

Can I try V3.1 Terminus for free?

Yes. You can start a chat instantly and test the model before deciding on a plan.

Does V3.1 Terminus support images or audio?

V3.1 Terminus focuses on text-based tasks.

Benchmarks and pricing are sourced from Artificial Analysis where available. OpenRouter specs are used as a fallback.

Customer Support