Horizon Alpha vs Horizon Beta
Compare Horizon Alpha and Horizon Beta, both from OpenRouter, in 339 community votes, horizon beta wins 61% of head-to-head duels, context windows of 256K vs 256K, tested across 34 shared challenges. Updated May 2026.
Which is better, Horizon Alpha or Horizon Beta?
Horizon Beta is the better choice overall, winning 61% of 339 blind community votes on Rival. Horizon Alpha costs $0/M input tokens vs $0/M for Horizon Beta. Context windows: 256K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Horizon Alpha and Horizon Beta
Horizon Alpha is made by openrouter while Horizon Beta is from openrouter. Horizon Alpha has a 256K token context window compared to Horizon Beta's 256K. On pricing, Horizon Alpha costs $0/M input tokens vs $0/M for Horizon Beta. In community voting, In 339 community votes, Horizon Beta wins 61% of head-to-head duels.
In 339 community votes, Horizon Beta wins 61% of head-to-head duels. Horizon Alpha leads in Analysis, while Horizon Beta leads in Web Design, Conversation. Based on blind community voting from the Rival open dataset of 339+ human preference judgments for this pair.
Per 1M tokens
Pick Horizon Beta. In 339 blind votes, Horizon Beta wins 61% of the time. That's not luck.
Pick Horizon Alpha for Analysis. Pick Horizon Beta for Web Design, Conversation.
Style Comparison
Horizon Alpha uses 1.6x more lists
