Horizon Beta
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Horizon Beta vs Claude Opus 4
Compare Horizon Beta by OpenRouter against Claude Opus 4 by Anthropic, in 55 community votes, horizon beta and claude opus 4 are closely matched, context windows of 256K vs 200K, tested across 27 shared challenges. Updated March 2026.
Which is better, Horizon Beta or Claude Opus 4?
Horizon Beta and Claude Opus 4 are closely matched based on 55 community votes. Horizon Beta costs $0/M input tokens vs $15/M for Claude Opus 4. Context windows: 256K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Horizon Beta and Claude Opus 4
Horizon Beta is made by openrouter while Claude Opus 4 is from anthropic. Horizon Beta has a 256K token context window compared to Claude Opus 4's 200K. On pricing, Horizon Beta costs $0/M input tokens vs $15/M for Claude Opus 4. In community voting, In 55 community votes, Horizon Beta and Claude Opus 4 are closely matched.
In 55 community votes, Horizon Beta and Claude Opus 4 are closely matched. Horizon Beta leads in Image Generation, Conversation, Analysis, while Claude Opus 4 leads in Web Design, Reasoning. Based on blind community voting from the Rival open dataset of 55+ human preference judgments for this pair.
Web Design: Claude Opus 4 wins 70% of votes
Image Generation: Horizon Beta wins 86% of votes
Reasoning: Claude Opus 4 wins 75% of votes
Conversation: Horizon Beta wins 67% of votes
Analysis: Horizon Beta wins 100% of votes
Our Verdict
Horizon Beta
Claude Opus 4
Too close to call. Pick based on your use case.
Pick Horizon Beta for Analysis, Image Generation, Conversation. Pick Claude Opus 4 for Reasoning, Web Design.
Too close to call
vsAsk them anything yourself
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