What is the difference between Claude Opus 4 and DeepSeek R1?

Claude Opus 4 is developed by Anthropic while DeepSeek R1 is developed by DeepSeek. Claude Opus 4 has a 200K token context window vs DeepSeek R1's 128K. in 16 community votes on Rival, Claude Opus 4 wins 58% of head-to-head matchups. These results are based on blind head-to-head voting across 52 challenges.

Which is better, Claude Opus 4 or DeepSeek R1?

Based on 16 community votes on Rival, Claude Opus 4 wins 58% of head-to-head matchups against DeepSeek R1. Claude Opus 4 is strongest in Web Design.

How much does Claude Opus 4 cost compared to DeepSeek R1?

Claude Opus 4 costs $15/M input tokens and DeepSeek R1 costs $0.55/M input tokens. DeepSeek R1 is $14.45/M cheaper per input. The more expensive model wins 58% of duels, so the premium may be justified by quality.

How are Claude Opus 4 vs DeepSeek R1 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. 16 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 Opus 4 and DeepSeek R1?

Claude Opus 4 is developed by Anthropic while DeepSeek R1 is developed by DeepSeek. Claude Opus 4 has a 200K token context window vs DeepSeek R1's 128K. in 16 community votes on Rival, Claude Opus 4 wins 58% of head-to-head matchups. These results are based on blind head-to-head voting across 52 challenges.

Which is better, Claude Opus 4 or DeepSeek R1?

Based on 16 community votes on Rival, Claude Opus 4 wins 58% of head-to-head matchups against DeepSeek R1. Claude Opus 4 is strongest in Web Design.

How much does Claude Opus 4 cost compared to DeepSeek R1?

Claude Opus 4 costs $15/M input tokens and DeepSeek R1 costs $0.55/M input tokens. DeepSeek R1 is $14.45/M cheaper per input. The more expensive model wins 58% of duels, so the premium may be justified by quality.

How are Claude Opus 4 vs DeepSeek R1 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. 16 votes have been collected for this pair across 52 challenges. All vote data is part of Rival's open dataset.

Claude Opus 4 vs DeepSeek R1: Which Is Better?

Updated May 2025

Our Verdict

Claude Opus 4Winner

DeepSeek R1Runner-up

Pick Claude Opus 4. In 16 blind votes, Claude Opus 4 wins 58% of the time. That's not luck.

Claude Opus 4 particularly excels in Web Design. DeepSeek R1 is 34x cheaper per token — worth considering if cost matters.

Clear winner

API pricing

Cost per 1M tokens

Claude Opus 4

Input

$15.00

Output

$75.00

DeepSeek R1

Input

$0.55

27× cheaper

Output

$2.19

34× cheaper

DeepSeek R1 is cheaper on both — 27× input, 34× output

Writing DNA

Style Comparison

Similarity

70%

Claude Opus 4 uses 4.2x more sentence length

Claude Opus 4

DeepSeek R1

64%Vocabulary62%

62wSentence Length15w

0.52Hedging0.52

4.4Bold8.0

9.1Lists5.7

0.11Emoji0.04

1.87Headings0.62

0.27Transitions0.28

Based on 16 + 22 text responses

Research

What we learned reading every model

Claude Opus 4 and DeepSeek R1 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

DeepSeek R1 vs MiniMax M3New provider

DeepSeek R1 vs GPT-5New provider

DeepSeek R1 vs Claude Sonnet 4Cross-provider

Updated May 2025

Our Verdict

Claude Opus 4Winner

DeepSeek R1Runner-up

Pick Claude Opus 4. In 16 blind votes, Claude Opus 4 wins 58% of the time. That's not luck.

Claude Opus 4 particularly excels in Web Design. DeepSeek R1 is 34x cheaper per token — worth considering if cost matters.

Clear winner

API pricing

Cost per 1M tokens

Claude Opus 4

Input

$15.00

Output

$75.00

DeepSeek R1

Input

$0.55

27× cheaper

Output

$2.19

34× cheaper

DeepSeek R1 is cheaper on both — 27× input, 34× output

Writing DNA

Style Comparison

Similarity

70%

Claude Opus 4 uses 4.2x more sentence length

Claude Opus 4

DeepSeek R1

64%Vocabulary62%

62wSentence Length15w

0.52Hedging0.52

4.4Bold8.0

9.1Lists5.7

0.11Emoji0.04

1.87Headings0.62

0.27Transitions0.28

Based on 16 + 22 text responses

Research

What we learned reading every model

Claude Opus 4 and DeepSeek R1 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

DeepSeek R1 vs MiniMax M3New provider

DeepSeek R1 vs GPT-5New provider

DeepSeek R1 vs Claude Sonnet 4Cross-provider