Claude Haiku 4.5 vs GPT-3.5 Turbo

Compare Claude Haiku 4.5 by Anthropic against GPT-3.5 Turbo by OpenAI, context windows of 200K vs 16K, tested across 24 shared challenges. Updated April 2026.

Which is better, Claude Haiku 4.5 or GPT-3.5 Turbo?

Claude Haiku 4.5 and GPT-3.5 Turbo are both competitive models. Claude Haiku 4.5 costs $1/M input tokens vs $1.5/M for GPT-3.5 Turbo. Context windows: 200K vs 16K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Haiku 4.5 and GPT-3.5 Turbo

Claude Haiku 4.5 is made by anthropic while GPT-3.5 Turbo is from openai. Claude Haiku 4.5 has a 200K token context window compared to GPT-3.5 Turbo's 16K. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $1.5/M for GPT-3.5 Turbo.

Our Verdict
Claude Haiku 4.5
Claude Haiku 4.5
GPT-3.5 Turbo
GPT-3.5 TurboRunner-up

No community votes yet. On paper, Claude Haiku 4.5 has the edge — bigger model tier, newer, bigger context window.

Slight edge
Writing DNA

Style Comparison

Similarity
64%

Claude Haiku 4.5 uses 513.9x more bold

Claude Haiku 4.5
GPT-3.5 Turbo
61%Vocabulary61%
47wSentence Length16w
0.64Hedging0.23
5.1Bold0.0
6.3Lists3.7
0.20Emoji0.00
2.46Headings0.00
0.17Transitions0.38
Based on 24 + 11 text responses
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Claude Haiku 4.5GPT-3.5 Turbo

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