o1
Nothing here. The model returned empty. We stared at it for a while.
o1 vs Claude Sonnet 4.6
Compare o1 by OpenAI against Claude Sonnet 4.6 by Anthropic, in 1 community votes, claude sonnet 4.6 wins 100% of head-to-head duels, context windows of 128K vs 1.0M, tested across 53 shared challenges. Updated April 2026.
Which is better, o1 or Claude Sonnet 4.6?
Claude Sonnet 4.6 is the better choice overall, winning 100% of 1 blind community votes on Rival. o1 costs $15/M input tokens vs $3/M for Claude Sonnet 4.6. Context windows: 128K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between o1 and Claude Sonnet 4.6
o1 is made by openai while Claude Sonnet 4.6 is from anthropic. o1 has a 128K token context window compared to Claude Sonnet 4.6's 1000K. On pricing, o1 costs $15/M input tokens vs $3/M for Claude Sonnet 4.6. In community voting, In 1 community votes, Claude Sonnet 4.6 wins 100% of head-to-head duels.
In 1 community votes, Claude Sonnet 4.6 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.
Our Verdict
Claude Sonnet 4.6Winner
o1Runner-up
Pick Claude Sonnet 4.6. In 1 blind votes, Claude Sonnet 4.6 wins 100% of the time. That's not luck.
Claude Sonnet 4.6 is 4.0x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
93%
Claude Sonnet 4.6 uses 19.1x more emoji
o1
Claude Sonnet 4.6
64%Vocabulary56%
16wSentence Length36w
0.76Hedging0.53
5.0Bold5.1
2.6Lists3.4
0.00Emoji0.19
0.44Headings2.10
0.40Transitions0.02
Based on 13 + 23 text responses
vsAsk them anything yourself
FAQ