Claude 3 Opus vs Horizon Beta
Compare Claude 3 Opus by Anthropic against Horizon Beta by OpenRouter, in 7 community votes, horizon beta wins 57% of head-to-head duels, context windows of 200K vs 256K, tested across 12 shared challenges. Updated April 2026.
Which is better, Claude 3 Opus or Horizon Beta?
Horizon Beta is the better choice overall, winning 57% of 7 blind community votes on Rival. Claude 3 Opus costs $15/M input tokens vs $0/M for Horizon Beta. Context windows: 200K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3 Opus and Horizon Beta
Claude 3 Opus is made by anthropic while Horizon Beta is from openrouter. Claude 3 Opus has a 200K token context window compared to Horizon Beta's 256K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0/M for Horizon Beta. In community voting, In 7 community votes, Horizon Beta wins 57% of head-to-head duels.
In 7 community votes, Horizon Beta wins 57% of head-to-head duels. Claude 3 Opus leads in Web Design, while Horizon Beta leads in Image Generation. Based on blind community voting from the Rival open dataset of 7+ human preference judgments for this pair.
Horizon Beta has the edge overall. In 7 blind votes, Horizon Beta wins 57% of the time.
Pick Claude 3 Opus for Web Design. Pick Horizon Beta for Image Generation.
Style Comparison
Horizon Beta uses 3.2x more transitions
vs
Ask them anything yourself
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185x
price gap between models that write identically
178
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12
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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.
