Mistral Medium 3.1 vs xAI: Grok 4
Compare Mistral Medium 3.1 by Mistral AI against xAI: Grok 4 by xAI, context windows of 131K vs 256K, tested across 53 shared challenges. Updated April 2026.
Which is better, Mistral Medium 3.1 or xAI: Grok 4?
Mistral Medium 3.1 and xAI: Grok 4 are both competitive models. Mistral Medium 3.1 costs $0.4/M input tokens vs $3/M for xAI: Grok 4. Context windows: 131K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Mistral Medium 3.1 and xAI: Grok 4
Mistral Medium 3.1 is made by mistral while xAI: Grok 4 is from xai. Mistral Medium 3.1 has a 131K token context window compared to xAI: Grok 4's 256K. On pricing, Mistral Medium 3.1 costs $0.4/M input tokens vs $3/M for xAI: Grok 4.
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 is 7.5x cheaper per token — worth considering if cost matters.
Style Comparison
Mistral Medium 3.1 uses 5.6x more emoji
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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.
