# DeepSeek: DeepSeek V3.1 Terminus

Provider: deepseek  
Category: llm  
Model ID: `deepseek/deepseek-v3.1-terminus`

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...

## Specs

- Context length: 163840 tokens
- Max output: unknown tokens
- Modalities: text
- Released: 2025-09-22

## Pricing

- Input: $0.21 per million tokens
- Output: $0.79 per million tokens

## Providers

- **deepseek** — ctx 163840, input $0.21/M, output $0.79/M

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Last verified: 2026-04-23T23:46:29.618Z  
Canonical URL: https://switchy.build/models/deepseek-v3-1-terminus