Claude Haiku 4.5 vs Gemini 2.5 Pro (I/O Edition)
Compare Claude Haiku 4.5 by Anthropic against Gemini 2.5 Pro (I/O Edition) by Google AI, in 9 community votes, gemini 2.5 pro (i/o edition) wins 56% of head-to-head duels, tested across 41 shared challenges. Updated April 2026.
Which is better, Claude Haiku 4.5 or Gemini 2.5 Pro (I/O Edition)?
Gemini 2.5 Pro (I/O Edition) is the better choice overall, winning 56% of 9 blind community votes on Rival. Claude Haiku 4.5 costs $1/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition). Compare their real outputs side by side below.
Key Differences Between Claude Haiku 4.5 and Gemini 2.5 Pro (I/O Edition)
Claude Haiku 4.5 is made by anthropic while Gemini 2.5 Pro (I/O Edition) is from google. On pricing, Claude Haiku 4.5 costs $1/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition). In community voting, In 9 community votes, Gemini 2.5 Pro (I/O Edition) wins 56% of head-to-head duels.
In 9 community votes, Gemini 2.5 Pro (I/O Edition) wins 56% of head-to-head duels. Gemini 2.5 Pro (I/O Edition) leads in Web Design. Based on blind community voting from the Rival open dataset of 9+ human preference judgments for this pair.
Gemini 2.5 Pro (I/O Edition) has the edge overall. In 9 blind votes, Gemini 2.5 Pro (I/O Edition) wins 56% of the time.
Gemini 2.5 Pro (I/O Edition) particularly excels in Web Design.
Style Comparison
Claude Haiku 4.5 uses 20.4x more emoji
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
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12
clone pairs
32
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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.
