AI model · DeepSeek
DeepSeek V3.1 Terminus
Model ID: deepseek/deepseek-v3.1-terminus
- Input
- $0.27 per 1M tokens
- Output
- $1 per 1M tokens
- Context
- 164K tokens at once
- Max output
- 147K tokens per reply
- Released
- 22 Sep 2025 DeepSeek
What it can do
- YesReasoning
- YesTool calling
- NoImage input
- YesOpen weights
- NoFree to use
Takes text; gives text.
How its listing describes it
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...
Sources
- DeepSeek: DeepSeek V3.1 Terminus on OpenRouter — read 2 Oct 2026