Claude 3 Opus vs DeepSeek R1

Compare Claude 3 Opus by Anthropic against DeepSeek R1 by DeepSeek, context windows of 200K vs 128K, tested across 12 shared challenges. Updated April 2026.

Which is better, Claude 3 Opus or DeepSeek R1?

Claude 3 Opus and DeepSeek R1 are both competitive models. Claude 3 Opus costs $15/M input tokens vs $0.55/M for DeepSeek R1. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Claude 3 Opus and DeepSeek R1

Claude 3 Opus is made by anthropic while DeepSeek R1 is from deepseek. Claude 3 Opus has a 200K token context window compared to DeepSeek R1's 128K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.55/M for DeepSeek R1.

Our Verdict
Claude 3 Opus
Claude 3 Opus
DeepSeek R1
DeepSeek R1Runner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window.

DeepSeek R1 is 34x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
99%

DeepSeek R1 uses 800.0x more bold

Claude 3 Opus
DeepSeek R1
54%Vocabulary62%
14wSentence Length15w
0.48Hedging0.52
0.0Bold8.0
3.0Lists5.7
0.00Emoji0.04
0.00Headings0.62
0.06Transitions0.28
Based on 3 + 22 text responses
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Claude 3 OpusDeepSeek R1

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