Claude Haiku 4.5
Nothing here. The model returned empty. We stared at it for a while.
Claude Haiku 4.5 vs GPT-5
Compare Claude Haiku 4.5 by Anthropic against GPT-5 by OpenAI, in 2 community votes, gpt-5 wins 100% of head-to-head duels, context windows of 200K vs 400K, tested across 47 shared challenges. Updated April 2026.
Which is better, Claude Haiku 4.5 or GPT-5?
GPT-5 is the better choice overall, winning 100% of 2 blind community votes on Rival. Claude Haiku 4.5 costs $1/M input tokens vs $1.25/M for GPT-5. Context windows: 200K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Haiku 4.5 and GPT-5
Claude Haiku 4.5 is made by anthropic while GPT-5 is from openai. Claude Haiku 4.5 has a 200K token context window compared to GPT-5's 400K. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $1.25/M for GPT-5. In community voting, In 2 community votes, GPT-5 wins 100% of head-to-head duels.
In 2 community votes, GPT-5 wins 100% of head-to-head duels. GPT-5 leads in Image Generation. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Image Generation: GPT-5 wins 100% of votes
Our Verdict
GPT-5Winner
Claude Haiku 4.5Runner-up
Pick GPT-5. In 2 blind votes, GPT-5 wins 100% of the time. That's not luck.
GPT-5 particularly excels in Image Generation.
Clear winner
Writing DNA
Style Comparison
Similarity
91%
Claude Haiku 4.5 uses 20.4x more emoji
Claude Haiku 4.5
GPT-5
61%Vocabulary65%
47wSentence Length13w
0.64Hedging0.20
5.1Bold0.2
6.3Lists4.6
0.20Emoji0.00
2.46Headings0.16
0.17Transitions0.03
Based on 24 + 16 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ