Mistral Medium 3.1 vs Solar Pro 3
Compare Mistral Medium 3.1 by Mistral AI against Solar Pro 3 by Upstage, context windows of 131K vs 128K, tested across 39 shared challenges. Updated April 2026.
Which is better, Mistral Medium 3.1 or Solar Pro 3?
Mistral Medium 3.1 and Solar Pro 3 are both competitive models. Mistral Medium 3.1 costs $0.4/M input tokens vs $0/M for Solar Pro 3. Context windows: 131K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Mistral Medium 3.1 and Solar Pro 3
Mistral Medium 3.1 is made by mistral while Solar Pro 3 is from upstage. Mistral Medium 3.1 has a 131K token context window compared to Solar Pro 3's 128K. On pricing, Mistral Medium 3.1 costs $0.4/M input tokens vs $0/M for Solar Pro 3.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Style Comparison
Mistral Medium 3.1 uses 2.6x more lists
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.
