DeepSeek R1 vs Horizon Alpha

Compare DeepSeek R1 by DeepSeek against Horizon Alpha by OpenRouter, context windows of 128K vs 256K, tested across 26 shared challenges. Updated March 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.

Our Verdict
DeepSeek R1
DeepSeek R1
Horizon Alpha
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

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