LLM Reference
OpenRouter

Using DeepSeek V3.1 Terminus on OpenRouter

Implementation guide · DeepSeek · DeepSeek

ServerlessOpen Weights

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

Last refreshed 2026-06-15. 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-v3.1-terminus — see the documentation for request format.
  3. 3
    You'll be billed $0.21/1M input, $0.79/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$0.21
Output tokens$0.79

Capabilities

Structured Outputs

About DeepSeek V3.1 Terminus

DeepSeek: DeepSeek V3.1 Terminus available via OpenRouter. Pricing: $0.21/1M input, $0.79/1M output.

Full model details →

Model Specs

Released2025-09-22
Parameters671B total, 37B active (MoE)
Context164k
ArchitectureDecoder Only

More Models on OpenRouter

DeepSeek V3.2 SpecialeDeepSeek V3.2 Exp
All models on OpenRouter →

Also available on(3)

Vercel AI Gateway$0.27/1MNovita AI$0.27/1MNVIDIA NIM
Compare all providers →

Provider

OpenRouter
OpenRouter

OpenRouter, Inc.

New York, NY, USA