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DeepSeek V3.1

by DeepSeek

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 ba

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DeepSeek V3.1

Added 10 July 2026

#deepseek

Overview

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

How to use / API access

Call via OpenRouter with model id `deepseek/deepseek-chat-v3.1`.

  • openrouter · deepseek/deepseek-chat-v3.1 Docs

OpenRouter id: deepseek/deepseek-chat-v3.1

Benchmarks

  • Design Arena 3d (other) : 1153 elo · #63
  • Design Arena codecategories (other) : 1155 elo · #68
  • Design Arena dataviz (other) : 1141 elo · #69
  • Design Arena gamedev (other) : 1150 elo · #65

Notes

DeepSeek V3.1 is listed in the EDNA Models directory from the OpenRouter catalogue.

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