What is the difference between Claude Sonnet 4 and o1?

Claude Sonnet 4 is developed by Anthropic while o1 is developed by OpenAI. Claude Sonnet 4 has a 200K token context window vs o1's 128K. in 2 community votes on Rival, Claude Sonnet 4 wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, Claude Sonnet 4 or o1?

Based on 2 community votes on Rival, Claude Sonnet 4 wins 100% of head-to-head matchups against o1.

How much does Claude Sonnet 4 cost compared to o1?

Claude Sonnet 4 costs $3/M input tokens and o1 costs $15/M input tokens. Claude Sonnet 4 is $12.00/M cheaper per input. Claude Sonnet 4 also wins more often in community votes, making it the better value.

How are Claude Sonnet 4 vs o1 votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 2 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

What is the difference between Claude Sonnet 4 and o1?

Claude Sonnet 4 is developed by Anthropic while o1 is developed by OpenAI. Claude Sonnet 4 has a 200K token context window vs o1's 128K. in 2 community votes on Rival, Claude Sonnet 4 wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, Claude Sonnet 4 or o1?

Based on 2 community votes on Rival, Claude Sonnet 4 wins 100% of head-to-head matchups against o1.

How much does Claude Sonnet 4 cost compared to o1?

Claude Sonnet 4 costs $3/M input tokens and o1 costs $15/M input tokens. Claude Sonnet 4 is $12.00/M cheaper per input. Claude Sonnet 4 also wins more often in community votes, making it the better value.

How are Claude Sonnet 4 vs o1 votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 2 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

Claude Sonnet 4 vs o1: Which Is Better?

Updated May 2025

Our Verdict

Claude Sonnet 4Winner

o1Runner-up

Pick Claude Sonnet 4. In 2 blind votes, Claude Sonnet 4 wins 100% of the time. That's not luck.

Claude Sonnet 4 is 4.0x cheaper per token — worth considering if cost matters.

Clear winner

API pricing

Cost per 1M tokens

Claude Sonnet 4

Input

$3.00

5.0× cheaper

Output

$15.00

4.0× cheaper

Input

$15.00

Output

$60.00

Claude Sonnet 4 is cheaper on both — 5.0× input, 4.0× output

Writing DNA

Style Comparison

Similarity

53%

Claude Sonnet 4 uses 87.9x more emoji

Claude Sonnet 4

62%Vocabulary64%

111wSentence Length16w

0.40Hedging0.76

5.0Bold5.0

9.3Lists2.6

0.88Emoji0.00

2.16Headings0.44

0.33Transitions0.40

Based on 17 + 13 text responses

Research

What we learned reading every model

Claude Sonnet 4 and o1 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

o1 vs MiniMax M3New provider

o1 vs Claude Opus 4Cross-provider

o1 vs Aurora AlphaNew provider

Updated May 2025

Our Verdict

Claude Sonnet 4Winner

o1Runner-up

Pick Claude Sonnet 4. In 2 blind votes, Claude Sonnet 4 wins 100% of the time. That's not luck.

Claude Sonnet 4 is 4.0x cheaper per token — worth considering if cost matters.

Clear winner

API pricing

Cost per 1M tokens

Claude Sonnet 4

Input

$3.00

5.0× cheaper

Output

$15.00

4.0× cheaper

Input

$15.00

Output

$60.00

Claude Sonnet 4 is cheaper on both — 5.0× input, 4.0× output

Writing DNA

Style Comparison

Similarity

53%

Claude Sonnet 4 uses 87.9x more emoji

Claude Sonnet 4

62%Vocabulary64%

111wSentence Length16w

0.40Hedging0.76

5.0Bold5.0

9.3Lists2.6

0.88Emoji0.00

2.16Headings0.44

0.33Transitions0.40

Based on 17 + 13 text responses

Research

What we learned reading every model

Claude Sonnet 4 and o1 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

o1 vs MiniMax M3New provider

o1 vs Claude Opus 4Cross-provider

o1 vs Aurora AlphaNew provider