Claude Haiku 4.5
Nothing here. The model returned empty. We stared at it for a while.
Claude Haiku 4.5 vs DeepSeek R1
Compare Claude Haiku 4.5 by Anthropic against DeepSeek R1 by DeepSeek, context windows of 200K vs 128K, tested across 53 shared challenges. Updated April 2026.
Which is better, Claude Haiku 4.5 or DeepSeek R1?
Claude Haiku 4.5 and DeepSeek R1 are both competitive models. Claude Haiku 4.5 costs $1/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 Haiku 4.5 and DeepSeek R1
Claude Haiku 4.5 is made by anthropic while DeepSeek R1 is from deepseek. Claude Haiku 4.5 has a 200K token context window compared to DeepSeek R1's 128K. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $0.55/M for DeepSeek R1.
Our Verdict
Claude Haiku 4.5
DeepSeek R1Runner-up
No community votes yet. On paper, Claude Haiku 4.5 has the edge — newer, bigger context window.
Too close to call
Writing DNA
Style Comparison
Similarity
84%
Claude Haiku 4.5 uses 4.7x more emoji
Claude Haiku 4.5
DeepSeek R1
61%Vocabulary62%
47wSentence Length15w
0.64Hedging0.52
5.1Bold8.0
6.3Lists5.7
0.20Emoji0.04
2.46Headings0.62
0.17Transitions0.28
Based on 24 + 22 text responses
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279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
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