Mistral Devstral Medium vs GPT-5.4 Pro
Compare Mistral Devstral Medium by Mistral AI against GPT-5.4 Pro by OpenAI, tested across 18 shared challenges. Updated April 2026.
Which is better, Mistral Devstral Medium or GPT-5.4 Pro?
Mistral Devstral Medium and GPT-5.4 Pro are both competitive models. Mistral Devstral Medium costs $0.4/M input tokens vs $30/M for GPT-5.4 Pro. Compare their real outputs side by side below.
Key Differences Between Mistral Devstral Medium and GPT-5.4 Pro
Mistral Devstral Medium is made by mistral while GPT-5.4 Pro is from openai. On pricing, Mistral Devstral Medium costs $0.4/M input tokens vs $30/M for GPT-5.4 Pro.
No community votes yet. On paper, GPT-5.4 Pro has the edge — bigger model tier, newer, bigger context window, major provider backing.
Mistral Devstral Medium is 90x cheaper per token — worth considering if cost matters.
Style Comparison
Mistral Devstral Medium uses 32.2x more transitions
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.
