What is the difference between Claude Sonnet 4 and GPT-5?

Claude Sonnet 4 is developed by Anthropic while GPT-5 is developed by OpenAI. Claude Sonnet 4 has a 200K token context window vs GPT-5's 400K. in 93 community votes on Rival, GPT-5 wins 55% of head-to-head matchups. These results are based on blind head-to-head voting across 52 challenges.

Which is better, Claude Sonnet 4 or GPT-5?

Based on 93 community votes on Rival, GPT-5 wins 55% of head-to-head matchups against Claude Sonnet 4. GPT-5 is strongest in Image Generation, Reasoning, Analysis. However, Claude Sonnet 4 leads in Web Design, Conversation.

How much does Claude Sonnet 4 cost compared to GPT-5?

Claude Sonnet 4 costs $3/M input tokens and GPT-5 costs $1.25/M input tokens. GPT-5 is $1.75/M cheaper per input. GPT-5 also wins more often in community votes, making it the better value.

How are Claude Sonnet 4 vs GPT-5 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. 93 votes have been collected for this pair across 52 challenges. All vote data is part of Rival's open dataset.

What is the difference between Claude Sonnet 4 and GPT-5?

Claude Sonnet 4 is developed by Anthropic while GPT-5 is developed by OpenAI. Claude Sonnet 4 has a 200K token context window vs GPT-5's 400K. in 93 community votes on Rival, GPT-5 wins 55% of head-to-head matchups. These results are based on blind head-to-head voting across 52 challenges.

Which is better, Claude Sonnet 4 or GPT-5?

Based on 93 community votes on Rival, GPT-5 wins 55% of head-to-head matchups against Claude Sonnet 4. GPT-5 is strongest in Image Generation, Reasoning, Analysis. However, Claude Sonnet 4 leads in Web Design, Conversation.

How much does Claude Sonnet 4 cost compared to GPT-5?

Claude Sonnet 4 costs $3/M input tokens and GPT-5 costs $1.25/M input tokens. GPT-5 is $1.75/M cheaper per input. GPT-5 also wins more often in community votes, making it the better value.

How are Claude Sonnet 4 vs GPT-5 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. 93 votes have been collected for this pair across 52 challenges. All vote data is part of Rival's open dataset.

Updated Aug 2025

Claude Sonnet 4vsGPT-5

GPT-5 wins 55% of 93 blind community votes against Claude Sonnet 4 on Rival.

Claude Sonnet 4 and GPT-5 compared across 52 shared prompts
Spec	Claude Sonnet 4	GPT-5
Win rate	45%	55%
Input price	$3/M tokens	$1.25/M tokens
Output price	$15/M tokens	$10/M tokens
Context window	200K tokens	400K tokens
Released	May 2025	Aug 2025
SWE-bench Verified	72.7%	74.9%

Our Verdict

GPT-5Winner

Claude Sonnet 4Runner-up

GPT-5 has the edge overall. In 93 blind votes, GPT-5 wins 55% of the time.

Pick Claude Sonnet 4 for Web Design, Conversation. Pick GPT-5 for Analysis, Image Generation, Reasoning.

Slight edge

What do Claude Sonnet 4 and GPT-5 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 Sonnet 4

Input

$3.00

Output

$15.00

GPT-5

Input

$1.25

2.4× cheaper

Output

$10.00

1.5× cheaper

GPT-5 is cheaper on both — 2.4× input, 1.5× output

Writing DNA

Style Comparison

Similarity

42%

Claude Sonnet 4 uses 87.9x more emoji

Claude Sonnet 4

GPT-5

62%Vocabulary65%

111wSentence Length13w

0.40Hedging0.20

5.0Bold0.2

9.3Lists4.6

0.88Emoji0.00

2.16Headings0.16

0.33Transitions0.03

Based on 17 + 16 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude Sonnet 4 vs Ox AlphaNew provider

Claude Sonnet 4 vs MiniMax M3New provider

Claude Sonnet 4 vs Llama 4 MaverickNew provider

Claude Sonnet 4 vs MiniMax M1New provider

Claude Sonnet 4 vs OpenAI o4 Mini HighCross-provider

Claude Sonnet 4 vs GPT-1Cross-provider

Claude Sonnet 4 vs Optimus AlphaNew provider

Claude Sonnet 4 vs Owl AlphaNew provider

Updated Aug 2025

Claude Sonnet 4vsGPT-5

GPT-5 wins 55% of 93 blind community votes against Claude Sonnet 4 on Rival.

Claude Sonnet 4 and GPT-5 compared across 52 shared prompts
Spec	Claude Sonnet 4	GPT-5
Win rate	45%	55%
Input price	$3/M tokens	$1.25/M tokens
Output price	$15/M tokens	$10/M tokens
Context window	200K tokens	400K tokens
Released	May 2025	Aug 2025
SWE-bench Verified	72.7%	74.9%

Our Verdict

GPT-5Winner

Claude Sonnet 4Runner-up

GPT-5 has the edge overall. In 93 blind votes, GPT-5 wins 55% of the time.

Pick Claude Sonnet 4 for Web Design, Conversation. Pick GPT-5 for Analysis, Image Generation, Reasoning.

Slight edge

What do Claude Sonnet 4 and GPT-5 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 Sonnet 4

Input

$3.00

Output

$15.00

GPT-5

Input

$1.25

2.4× cheaper

Output

$10.00

1.5× cheaper

GPT-5 is cheaper on both — 2.4× input, 1.5× output

Writing DNA

Style Comparison

Similarity

42%

Claude Sonnet 4 uses 87.9x more emoji

Claude Sonnet 4

GPT-5

62%Vocabulary65%

111wSentence Length13w

0.40Hedging0.20

5.0Bold0.2

9.3Lists4.6

0.88Emoji0.00

2.16Headings0.16

0.33Transitions0.03

Based on 17 + 16 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude Sonnet 4 vs Ox AlphaNew provider

Claude Sonnet 4 vs MiniMax M3New provider

Claude Sonnet 4 vs Llama 4 MaverickNew provider

Claude Sonnet 4 vs MiniMax M1New provider

Claude Sonnet 4 vs OpenAI o4 Mini HighCross-provider

Claude Sonnet 4 vs GPT-1Cross-provider

Claude Sonnet 4 vs Optimus AlphaNew provider

Claude Sonnet 4 vs Owl AlphaNew provider