Compare OpenAI Codex Mini by OpenAI against Mistral Devstral Medium by Mistral AI, tested across 10 shared challenges. Updated April 2026.
OpenAI Codex Mini and Mistral Devstral Medium are both competitive models. OpenAI Codex Mini costs $1.5/M input tokens vs $0.4/M for Mistral Devstral Medium. Compare their real outputs side by side below.
OpenAI Codex Mini is made by openai while Mistral Devstral Medium is from mistral. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.4/M for Mistral Devstral Medium.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Mistral Devstral Medium is 3.0x cheaper per token — worth considering if cost matters.
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 OpenAI Codex Mini by OpenAI against Mistral Devstral Medium by Mistral AI, tested across 10 shared challenges. Updated April 2026.
OpenAI Codex Mini and Mistral Devstral Medium are both competitive models. OpenAI Codex Mini costs $1.5/M input tokens vs $0.4/M for Mistral Devstral Medium. Compare their real outputs side by side below.
OpenAI Codex Mini is made by openai while Mistral Devstral Medium is from mistral. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $0.4/M for Mistral Devstral Medium.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Mistral Devstral Medium is 3.0x cheaper per token — worth considering if cost matters.
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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