Using DeepSeek V3.1 on OpenRouter

Implementation guide · DeepSeek V3 · DeepSeek

ServerlessOpen Source

OpenRouter exposes DeepSeek V3.1 through model ID deepseek/deepseek-chat-v3.1. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-10-17. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call deepseek/deepseek-chat-v3.1 — see the documentation for request format.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

Capabilities

Structured OutputsCode Execution

About DeepSeek V3.1

Hybrid thinking/non-thinking text model from DeepSeek with tool use, agent support and a 128K context window.

Full model details →

Model Specs

Released2025-08-21
Parameters671B total, 37B active (MoE)
Context128K
ArchitectureMixture of Experts

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Also available on(9)

Novita AI$0.27/1MFeatherless$0.28/1MFireworks AI$0.56/1M
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Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA