Compare Andromeda Alpha by OpenRouter against Mistral Medium 3.1 by Mistral AI, context windows of 128K vs 131K, tested across 31 shared challenges. Updated April 2026.
Andromeda Alpha and Mistral Medium 3.1 are both competitive models. Andromeda Alpha costs $0/M input tokens vs $0.4/M for Mistral Medium 3.1. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
Andromeda Alpha is made by openrouter while Mistral Medium 3.1 is from mistral. Andromeda Alpha has a 128K token context window compared to Mistral Medium 3.1's 131K. On pricing, Andromeda Alpha costs $0/M input tokens vs $0.4/M for Mistral Medium 3.1.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Mistral Medium 3.1 uses 1.5x more transitions
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 Andromeda Alpha by OpenRouter against Mistral Medium 3.1 by Mistral AI, context windows of 128K vs 131K, tested across 31 shared challenges. Updated April 2026.
Andromeda Alpha and Mistral Medium 3.1 are both competitive models. Andromeda Alpha costs $0/M input tokens vs $0.4/M for Mistral Medium 3.1. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
Andromeda Alpha is made by openrouter while Mistral Medium 3.1 is from mistral. Andromeda Alpha has a 128K token context window compared to Mistral Medium 3.1's 131K. On pricing, Andromeda Alpha costs $0/M input tokens vs $0.4/M for Mistral Medium 3.1.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Mistral Medium 3.1 uses 1.5x more transitions
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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31 fights queued
19+ 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