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

Claude Opus 4 is developed by Anthropic while GPT-5 is developed by OpenAI. Claude Opus 4 has a 200K token context window vs GPT-5's 400K. in 57 community votes on Rival, Claude Opus 4 wins 60% of head-to-head matchups. These results are based on blind head-to-head voting across 51 challenges.

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

Based on 57 community votes on Rival, Claude Opus 4 wins 60% of head-to-head matchups against GPT-5. Claude Opus 4 is strongest in Web Design, Conversation. However, GPT-5 leads in Image Generation, Reasoning.

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

Claude Opus 4 costs $15/M input tokens and GPT-5 costs $1.25/M input tokens. GPT-5 is $13.75/M cheaper per input. The more expensive model wins 60% of duels, so the premium may be justified by quality.

How are Claude Opus 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. 57 votes have been collected for this pair across 51 challenges. All vote data is part of Rival's open dataset.

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

Claude Opus 4 is developed by Anthropic while GPT-5 is developed by OpenAI. Claude Opus 4 has a 200K token context window vs GPT-5's 400K. in 57 community votes on Rival, Claude Opus 4 wins 60% of head-to-head matchups. These results are based on blind head-to-head voting across 51 challenges.

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

Based on 57 community votes on Rival, Claude Opus 4 wins 60% of head-to-head matchups against GPT-5. Claude Opus 4 is strongest in Web Design, Conversation. However, GPT-5 leads in Image Generation, Reasoning.

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

Claude Opus 4 costs $15/M input tokens and GPT-5 costs $1.25/M input tokens. GPT-5 is $13.75/M cheaper per input. The more expensive model wins 60% of duels, so the premium may be justified by quality.

How are Claude Opus 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. 57 votes have been collected for this pair across 51 challenges. All vote data is part of Rival's open dataset.

Updated Aug 2025

Claude Opus 4vsGPT-5

Claude Opus 4 wins 60% of 57 blind community votes against GPT-5 on Rival.

Claude Opus 4 and GPT-5 compared across 51 shared prompts
Spec	Claude Opus 4	GPT-5
Win rate	60%	40%
Input price	$15/M tokens	$1.25/M tokens
Output price	$75/M tokens	$10/M tokens
Context window	200K tokens	400K tokens
Released	May 2025	Aug 2025
SWE-bench Verified	72.5%	74.9%

Our Verdict

Claude Opus 4Winner

GPT-5Runner-up

Pick Claude Opus 4. In 57 blind votes, Claude Opus 4 wins 60% of the time. That's not luck.

Pick Claude Opus 4 for Web Design, Conversation. Pick GPT-5 for Reasoning, Image Generation. GPT-5 costs 7.5x less per token.

Clear winner

API pricing

Cost per 1M tokens

Claude Opus 4

Input

$15.00

Output

$75.00

GPT-5

Input

$1.25

12× cheaper

Output

$10.00

7.5× cheaper

GPT-5 is cheaper on both — 12× input, 7.5× output

Writing DNA

Style Comparison

Similarity

49%

Claude Opus 4 uses 118.4x more emoji

Claude Opus 4

GPT-5

65%Vocabulary65%

57wSentence Length13w

0.67Hedging0.20

3.8Bold0.2

6.8Lists4.6

1.18Emoji0.00

1.42Headings0.16

0.22Transitions0.03

Based on 27 + 16 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Updated Aug 2025

Claude Opus 4vsGPT-5

Claude Opus 4 wins 60% of 57 blind community votes against GPT-5 on Rival.

Claude Opus 4 and GPT-5 compared across 51 shared prompts
Spec	Claude Opus 4	GPT-5
Win rate	60%	40%
Input price	$15/M tokens	$1.25/M tokens
Output price	$75/M tokens	$10/M tokens
Context window	200K tokens	400K tokens
Released	May 2025	Aug 2025
SWE-bench Verified	72.5%	74.9%

Our Verdict

Claude Opus 4Winner

GPT-5Runner-up

Pick Claude Opus 4. In 57 blind votes, Claude Opus 4 wins 60% of the time. That's not luck.

Pick Claude Opus 4 for Web Design, Conversation. Pick GPT-5 for Reasoning, Image Generation. GPT-5 costs 7.5x less per token.

Clear winner

API pricing

Cost per 1M tokens

Claude Opus 4

Input

$15.00

Output

$75.00

GPT-5

Input

$1.25

12× cheaper

Output

$10.00

7.5× cheaper

GPT-5 is cheaper on both — 12× input, 7.5× output

Writing DNA

Style Comparison

Similarity

49%

Claude Opus 4 uses 118.4x more emoji

Claude Opus 4

GPT-5

65%Vocabulary65%

57wSentence Length13w

0.67Hedging0.20

3.8Bold0.2

6.8Lists4.6

1.18Emoji0.00

1.42Headings0.16

0.22Transitions0.03

Based on 27 + 16 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude Opus 4 vs Ox AlphaNew provider

Claude Opus 4 vs Llama 4 MaverickNew provider

Claude Opus 4 vs MiniMax M1New provider

Claude Opus 4 vs MiniMax M3New provider

Claude Opus 4 vs Qwen3 CoderNew provider

Claude Opus 4 vs Qwen3 Coder FlashNew provider

Claude Opus 4 vs Qwen3 Coder NextNew provider

Claude Opus 4 vs Qwen3 Coder PlusNew provider