Compare Mistral Devstral Medium by Mistral AI against Horizon Alpha by OpenRouter, tested across 34 shared challenges. Updated April 2026.
Mistral Devstral Medium and Horizon Alpha are both competitive models. Mistral Devstral Medium costs $0.4/M input tokens vs $0/M for Horizon Alpha. Compare their real outputs side by side below.
Mistral Devstral Medium is made by mistral while Horizon Alpha is from openrouter. On pricing, Mistral Devstral Medium costs $0.4/M input tokens vs $0/M for Horizon Alpha.
No community votes yet. On paper, Horizon Alpha has the edge — bigger model tier, bigger context window.
Mistral Devstral Medium uses 453.5x more bold
Ask 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.

Compare Mistral Devstral Medium by Mistral AI against Horizon Alpha by OpenRouter, tested across 34 shared challenges. Updated April 2026.
Mistral Devstral Medium and Horizon Alpha are both competitive models. Mistral Devstral Medium costs $0.4/M input tokens vs $0/M for Horizon Alpha. Compare their real outputs side by side below.
Mistral Devstral Medium is made by mistral while Horizon Alpha is from openrouter. On pricing, Mistral Devstral Medium costs $0.4/M input tokens vs $0/M for Horizon Alpha.
No community votes yet. On paper, Horizon Alpha has the edge — bigger model tier, bigger context window.
Mistral Devstral Medium uses 453.5x more bold
Ask 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.

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34 fights queued
22+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy