What is the difference between Claude Opus 4.1 and GPT-4?

Claude Opus 4.1 is developed by Anthropic while GPT-4 is developed by OpenAI. Claude Opus 4.1 has a 200K token context window vs GPT-4's 8K. in 2 community votes on Rival, Claude Opus 4.1 wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 26 challenges.

Which is better, Claude Opus 4.1 or GPT-4?

Based on 2 community votes on Rival, Claude Opus 4.1 wins 100% of head-to-head matchups against GPT-4. Claude Opus 4.1 is strongest in Image Generation.

How much does Claude Opus 4.1 cost compared to GPT-4?

Claude Opus 4.1 costs $15/M input tokens and GPT-4 costs $30/M input tokens. Claude Opus 4.1 is $15.00/M cheaper per input. Claude Opus 4.1 also wins more often in community votes, making it the better value.

How are Claude Opus 4.1 vs GPT-4 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 26 challenges. All vote data is part of Rival's open dataset.

What is the difference between Claude Opus 4.1 and GPT-4?

Claude Opus 4.1 is developed by Anthropic while GPT-4 is developed by OpenAI. Claude Opus 4.1 has a 200K token context window vs GPT-4's 8K. in 2 community votes on Rival, Claude Opus 4.1 wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 26 challenges.

Which is better, Claude Opus 4.1 or GPT-4?

Based on 2 community votes on Rival, Claude Opus 4.1 wins 100% of head-to-head matchups against GPT-4. Claude Opus 4.1 is strongest in Image Generation.

How much does Claude Opus 4.1 cost compared to GPT-4?

Claude Opus 4.1 costs $15/M input tokens and GPT-4 costs $30/M input tokens. Claude Opus 4.1 is $15.00/M cheaper per input. Claude Opus 4.1 also wins more often in community votes, making it the better value.

How are Claude Opus 4.1 vs GPT-4 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 26 challenges. All vote data is part of Rival's open dataset.

Claude Opus 4.1 vs GPT-4: Which Is Better?

Updated Aug 2025

Our Verdict

Claude Opus 4.1Winner

GPT-4Runner-up

Pick Claude Opus 4.1. In 2 blind votes, Claude Opus 4.1 wins 100% of the time. That's not luck.

Claude Opus 4.1 particularly excels in Image Generation.

Clear winner

API pricing

Cost per 1M tokens

Claude Opus 4.1

Input

$15.00

2.0× cheaper

Output

$75.00

GPT-4

Input

$30.00

Output

$60.00

1.3× cheaper

Claude Opus 4.1 wins input (2.0× cheaper)·GPT-4 wins output (1.3× cheaper)

Writing DNA

Style Comparison

Similarity

54%

Claude Opus 4.1 uses 38.4x more emoji

Claude Opus 4.1

GPT-4

61%Vocabulary59%

87wSentence Length18w

0.54Hedging1.10

5.1Bold0.8

6.7Lists2.5

0.38Emoji0.00

1.68Headings0.00

0.13Transitions0.45

Based on 17 + 15 text responses

Research

What we learned reading every model

Claude Opus 4.1 and GPT-4 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

GPT-4 vs MiniMax M3New provider

GPT-4 vs Gemini 2.5 Pro Preview 06-05New provider

Claude Opus 4.1 vs GPT-5Cross-provider

Updated Aug 2025

Our Verdict

Claude Opus 4.1Winner

GPT-4Runner-up

Pick Claude Opus 4.1. In 2 blind votes, Claude Opus 4.1 wins 100% of the time. That's not luck.

Claude Opus 4.1 particularly excels in Image Generation.

Clear winner

API pricing

Cost per 1M tokens

Claude Opus 4.1

Input

$15.00

2.0× cheaper

Output

$75.00

GPT-4

Input

$30.00

Output

$60.00

1.3× cheaper

Claude Opus 4.1 wins input (2.0× cheaper)·GPT-4 wins output (1.3× cheaper)

Writing DNA

Style Comparison

Similarity

54%

Claude Opus 4.1 uses 38.4x more emoji

Claude Opus 4.1

GPT-4

61%Vocabulary59%

87wSentence Length18w

0.54Hedging1.10

5.1Bold0.8

6.7Lists2.5

0.38Emoji0.00

1.68Headings0.00

0.13Transitions0.45

Based on 17 + 15 text responses

Research

What we learned reading every model

Claude Opus 4.1 and GPT-4 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

GPT-4 vs MiniMax M3New provider

GPT-4 vs Gemini 2.5 Pro Preview 06-05New provider

Claude Opus 4.1 vs GPT-5Cross-provider