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...
deepseek/deepseek-chat-v3.1DeepSeek V3.1 is an API model from DeepSeek, released on Aug 21, 2025, with a context window of 163,840 tokens, pricing of $0.25 per million input tokens and $0.95 per million output tokens. It accepts text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.0034.
Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.
DeepSeek V3.1 supports a context window of 163,840 tokens.
DeepSeek V3.1 is listed at $0.25 per million input tokens and $0.95 per million output tokens on OpenRouter.
DeepSeek V3.1 was published on Aug 21, 2025.
DeepSeek V3.1 accepts text input and produces text output.