Claude Sonnet 4 vs Horizon Beta
Compare Claude Sonnet 4 by Anthropic against Horizon Beta by OpenRouter, in 20 community votes, horizon beta wins 63% of head-to-head duels, context windows of 200K vs 256K, tested across 41 shared challenges.
Web Design: Horizon Beta wins 56% of votes
Image Generation: Horizon Beta wins 100% of votes
Reasoning: Claude Sonnet 4 wins 100% of votes
Our Verdict
Horizon BetaWinner
Claude Sonnet 4Runner-up
Pick Horizon Beta. In 20 blind votes, Horizon Beta wins 63% of the time. That's not luck.
Pick Claude Sonnet 4 for Reasoning. Pick Horizon Beta for Image Generation, Web Design.
Clear winner
API pricing
Cost per 1M tokens
Claude Sonnet 4
Input
$3.00
Output
$15.00
Horizon Beta
Input
$0.000
Output
$0.000
Writing DNA
Style Comparison
Similarity
35%
Claude Sonnet 4 uses 503.7x more bold
Claude Sonnet 4
Horizon Beta
62%Vocabulary62%
111wSentence Length15w
0.40Hedging0.24
5.0Bold0.0
9.3Lists2.2
0.88Emoji0.00
2.16Headings0.00
0.33Transitions0.18
Based on 17 + 16 text responses
Research
What we learned reading every model
FAQ
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