What is the difference between Claude 3.7 Sonnet and OpenAI o3?

Claude 3.7 Sonnet is developed by Anthropic while OpenAI o3 is developed by OpenAI. in 35 community votes on Rival, OpenAI o3 wins 59% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, Claude 3.7 Sonnet or OpenAI o3?

Based on 35 community votes on Rival, OpenAI o3 wins 59% of head-to-head matchups against Claude 3.7 Sonnet. OpenAI o3 is strongest in Reasoning, Conversation. However, Claude 3.7 Sonnet leads in Web Design, Image Generation.

How much does Claude 3.7 Sonnet cost compared to OpenAI o3?

Claude 3.7 Sonnet costs $3/M input tokens and OpenAI o3 costs $10/M input tokens. Claude 3.7 Sonnet is $7.00/M cheaper per input. The more expensive model wins 59% of duels, so the premium may be justified by quality.

How are Claude 3.7 Sonnet vs OpenAI o3 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. 35 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 3.7 Sonnet and OpenAI o3?

Claude 3.7 Sonnet is developed by Anthropic while OpenAI o3 is developed by OpenAI. in 35 community votes on Rival, OpenAI o3 wins 59% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, Claude 3.7 Sonnet or OpenAI o3?

Based on 35 community votes on Rival, OpenAI o3 wins 59% of head-to-head matchups against Claude 3.7 Sonnet. OpenAI o3 is strongest in Reasoning, Conversation. However, Claude 3.7 Sonnet leads in Web Design, Image Generation.

How much does Claude 3.7 Sonnet cost compared to OpenAI o3?

Claude 3.7 Sonnet costs $3/M input tokens and OpenAI o3 costs $10/M input tokens. Claude 3.7 Sonnet is $7.00/M cheaper per input. The more expensive model wins 59% of duels, so the premium may be justified by quality.

How are Claude 3.7 Sonnet vs OpenAI o3 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. 35 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

Updated Apr 2025

Claude 3.7 SonnetvsOpenAI o3

OpenAI o3 wins 59% of 35 blind community votes against Claude 3.7 Sonnet on Rival.

Claude 3.7 Sonnet and OpenAI o3 compared across 54 shared prompts
Spec	Claude 3.7 Sonnet	OpenAI o3
Win rate	41%	59%
Input price	$3/M tokens	$10/M tokens
Output price	$15/M tokens	$40/M tokens
Context window	200K tokens	—
Released	Feb 2025	Apr 2025
SWE-bench Verified	70.3%	69.1%

Our Verdict

OpenAI o3Winner

Claude 3.7 SonnetRunner-up

Pick OpenAI o3. In 35 blind votes, OpenAI o3 wins 59% of the time. That's not luck.

Pick Claude 3.7 Sonnet for Web Design, Image Generation. Pick OpenAI o3 for Conversation, Reasoning.

Clear winner

What do Claude 3.7 Sonnet and OpenAI o3 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

3.3× cheaper

Output

$15.00

2.7× cheaper

OpenAI o3

Input

$10.00

Output

$40.00

Claude 3.7 Sonnet is cheaper on both — 3.3× input, 2.7× output

Writing DNA

Style Comparison

Similarity

47%

Claude 3.7 Sonnet uses 4.7x more headings

Claude 3.7 Sonnet

OpenAI o3

62%Vocabulary68%

35wSentence Length14w

0.99Hedging0.26

1.2Bold0.7

4.3Lists3.0

0.00Emoji0.00

1.78Headings0.38

0.23Transitions0.12

Based on 13 + 16 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Claude 3.7 Sonnet vs DeepSeek V4 Pro 0813New provider

Claude 3.7 Sonnet vs Devstral 2 2512New provider

Claude 3.7 Sonnet vs Mistral Devstral MediumNew provider

Claude 3.7 Sonnet vs Mistral Devstral Small 1.1New provider

Updated Apr 2025

Claude 3.7 SonnetvsOpenAI o3

OpenAI o3 wins 59% of 35 blind community votes against Claude 3.7 Sonnet on Rival.

Claude 3.7 Sonnet and OpenAI o3 compared across 54 shared prompts
Spec	Claude 3.7 Sonnet	OpenAI o3
Win rate	41%	59%
Input price	$3/M tokens	$10/M tokens
Output price	$15/M tokens	$40/M tokens
Context window	200K tokens	—
Released	Feb 2025	Apr 2025
SWE-bench Verified	70.3%	69.1%

Our Verdict

OpenAI o3Winner

Claude 3.7 SonnetRunner-up

Pick OpenAI o3. In 35 blind votes, OpenAI o3 wins 59% of the time. That's not luck.

Pick Claude 3.7 Sonnet for Web Design, Image Generation. Pick OpenAI o3 for Conversation, Reasoning.

Clear winner

What do Claude 3.7 Sonnet and OpenAI o3 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

3.3× cheaper

Output

$15.00

2.7× cheaper

OpenAI o3

Input

$10.00

Output

$40.00

Claude 3.7 Sonnet is cheaper on both — 3.3× input, 2.7× output

Writing DNA

Style Comparison

Similarity

47%

Claude 3.7 Sonnet uses 4.7x more headings

Claude 3.7 Sonnet

OpenAI o3

62%Vocabulary68%

35wSentence Length14w

0.99Hedging0.26

1.2Bold0.7

4.3Lists3.0

0.00Emoji0.00

1.78Headings0.38

0.23Transitions0.12

Based on 13 + 16 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude 3.7 Sonnet vs Ox AlphaNew provider

Claude 3.7 Sonnet vs MiniMax M3New provider

Claude 3.7 Sonnet vs Gemini 2.5 Pro Preview 06-05New provider

Claude 3.7 Sonnet vs Llama 4 MaverickNew provider

Claude 3.7 Sonnet vs DeepSeek V4 Pro 0813New provider

Claude 3.7 Sonnet vs Devstral 2 2512New provider

Claude 3.7 Sonnet vs Mistral Devstral MediumNew provider

Claude 3.7 Sonnet vs Mistral Devstral Small 1.1New provider