LLMOpen weights

DeepSeek V3.1 Terminus

DeepSeek

Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error

Specifications

Type: LLM
Access: Open weights
Released: September 22, 2025
Context window: 163,840 tokens
Knowledge cutoff: March 31, 2025
Input: Text
Output: Text
API pricing: $0.27 in · $0.95 out / 1M tokens

Capabilities

Function callingStructured output

Benchmarks

Reasoning

79.2

Coding

79.8

Math

89.7

General

MMLU-Pro	85.1
Humanity’s Last Exam	15.2

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