o1
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o1 vs DeepSeek R1
Compare o1 by OpenAI against DeepSeek R1 by DeepSeek, 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 March 2026.
Which is better, o1 or DeepSeek R1?
DeepSeek R1 is the better choice overall, winning 75% of 6 blind community votes on Rival. o1 costs $15/M input tokens vs $0.55/M for DeepSeek R1. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between o1 and DeepSeek R1
o1 is made by openai while DeepSeek R1 is from deepseek. o1 has a 128K token context window compared to DeepSeek R1's 128K. On pricing, o1 costs $15/M input tokens vs $0.55/M for DeepSeek R1. In community voting, In 6 community votes, DeepSeek R1 wins 75% of head-to-head duels.
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.
Image Generation: DeepSeek R1 wins 67% of votes
Our Verdict
DeepSeek R1Winner
o1Runner-up
Pick DeepSeek R1. In 6 blind votes, DeepSeek R1 wins 75% of the time. That's not luck.
DeepSeek R1 particularly excels in Image Generation. DeepSeek R1 is 27x cheaper per token — worth considering if cost matters.
Clear winner
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