Mistral Devstral Small 1.1 vs GPT-5.3-Codex
Compare Mistral Devstral Small 1.1 by Mistral AI against GPT-5.3-Codex by OpenAI, tested across 53 shared challenges. Updated April 2026.
Which is better, Mistral Devstral Small 1.1 or GPT-5.3-Codex?
Mistral Devstral Small 1.1 and GPT-5.3-Codex are both competitive models. Mistral Devstral Small 1.1 costs $0.1/M input tokens vs $1.75/M for GPT-5.3-Codex. Compare their real outputs side by side below.
Key Differences Between Mistral Devstral Small 1.1 and GPT-5.3-Codex
Mistral Devstral Small 1.1 is made by mistral while GPT-5.3-Codex is from openai. On pricing, Mistral Devstral Small 1.1 costs $0.1/M input tokens vs $1.75/M for GPT-5.3-Codex.
No community votes yet. On paper, GPT-5.3-Codex has the edge — bigger model tier, newer, bigger context window, major provider backing.
Mistral Devstral Small 1.1 is 47x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-5.3-Codex uses 15.8x more emoji
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.
