DeepSeek R1

active

Open-source reasoning model matching o1 performance at a fraction of the cost.

Context window64K tokens

Input / 1M tokens$0.55

Output / 1M tokens$2.19

Version History

DeepSeek-R1majorJanuary 20, 2025

Full weights open-sourced. Matches OpenAI o1 on math and coding benchmarks at 1/30th the API price.