DeepSeek R1 vs o1

Compare DeepSeek R1 by DeepSeek against o1 by OpenAI, in 6 community votes, deepseek r1 wins 75% of head-to-head duels, context windows of 128K vs 128K, tested across 39 shared challenges. Updated February 2026.

In 6 community votes, DeepSeek R1 wins 75% of head-to-head duels. DeepSeek R1 leads in Image Generation. Based on blind community voting from the RIVAL open dataset of 6+ human preference judgments for this pair.