DeepSeek R1 vs Horizon Alpha
Compare DeepSeek R1 by DeepSeek against Horizon Alpha by OpenRouter, context windows of 128K vs 256K, tested across 34 shared challenges. Updated May 2026.
Which is better, DeepSeek R1 or Horizon Alpha?
DeepSeek R1 and Horizon Alpha are both competitive models. DeepSeek R1 costs $0.55/M input tokens vs $0/M for Horizon Alpha. Context windows: 128K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 and Horizon Alpha
DeepSeek R1 is made by deepseek while Horizon Alpha is from openrouter. DeepSeek R1 has a 128K token context window compared to Horizon Alpha's 256K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $0/M for Horizon Alpha.
API pricing
Per 1M tokens
DeepSeek R1
Input
$0.55
Output
$2.19
Horizon Alpha
Input
$0.000
Output
$0.000
Our Verdict
DeepSeek R1
Horizon Alpha
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
50%
DeepSeek R1 uses 800.0x more bold
DeepSeek R1
Horizon Alpha
62%Vocabulary65%
15wSentence Length14w
0.52Hedging0.22
8.0Bold0.0
5.7Lists3.5
0.04Emoji0.00
0.62Headings0.00
0.28Transitions0.12
Based on 22 + 14 text responses
FAQ
