DeepSeek: R1

DeepSeekID: deepseek/deepseek-r1

DeepSeek R1 is here: Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active in an inference pass. Fully open-source model & [technical report](https://api-docs.deepseek.com/news/news250120). MIT licensed: Distill & commercialize freely!

Pricing per 1M Tokens

Input (Prompt)$0.70
Output (Completion)$2.50
Cache ReadFree
Cache WriteFree
ImageN/A

Specifications

Context Length64K
Max Output Tokens16K
Input ModalitiesText
Output ModalitiesText
TokenizerDeepSeek
Instruct Typedeepseek-r1
Top Provider Context64K
Top Provider Max Output16K
ModeratedNo

Compare this model

See how DeepSeek: R1 stacks up against other models.

vs DeepSeek: DeepSeek V3.2 Specialevs DeepSeek: DeepSeek V3.2vs DeepSeek: DeepSeek V3.2 Expvs DeepSeek: DeepSeek V3.1 Terminusvs DeepSeek: DeepSeek V3.1

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DeepSeek: DeepSeek V3.1
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Last updated: March 23, 2026

First tracked: March 23, 2026