Horizon Beta vs o1
Compare Horizon Beta by OpenRouter against o1 by OpenAI, context windows of 256K vs 128K, tested across 41 shared challenges. Updated April 2026.
Which is better, Horizon Beta or o1?
Horizon Beta and o1 are both competitive models. Horizon Beta costs $0/M input tokens vs $15/M for o1. Context windows: 256K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Horizon Beta and o1
Horizon Beta is made by openrouter while o1 is from openai. Horizon Beta has a 256K token context window compared to o1's 128K. On pricing, Horizon Beta costs $0/M input tokens vs $15/M for o1.
No community votes yet. On paper, Horizon Beta has the edge — bigger model tier, newer, bigger context window.
Style Comparison
o1 uses 503.7x more bold
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
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
