Claude Haiku 4.5 vs DeepSeek V3 (March 2024)

Compare Claude Haiku 4.5 by Anthropic against DeepSeek V3 (March 2024) 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 V3 (March 2024)?

Claude Haiku 4.5 and DeepSeek V3 (March 2024) are both competitive models. Claude Haiku 4.5 costs $1/M input tokens vs $0.14/M for DeepSeek V3 (March 2024). Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Haiku 4.5 and DeepSeek V3 (March 2024)

Claude Haiku 4.5 is made by anthropic while DeepSeek V3 (March 2024) is from deepseek. Claude Haiku 4.5 has a 200K token context window compared to DeepSeek V3 (March 2024)'s 128K. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $0.14/M for DeepSeek V3 (March 2024).

Our Verdict
Claude Haiku 4.5
Claude Haiku 4.5
DeepSeek V3 (March 2024)
DeepSeek V3 (March 2024)

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

DeepSeek V3 (March 2024) is 18x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Claude Haiku 4.5 uses 2.6x more sentence length

Claude Haiku 4.5
DeepSeek V3 (March 2024)
61%Vocabulary58%
47wSentence Length18w
0.64Hedging0.73
5.1Bold7.5
6.3Lists7.6
0.20Emoji0.26
2.46Headings1.60
0.17Transitions0.08
Based on 24 + 16 text responses
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Claude Haiku 4.5DeepSeek V3 (March 2024)

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