GPT-5.1 Codex Max vs Grok 3 Mini Beta
Compare GPT-5.1 Codex Max by OpenAI against Grok 3 Mini Beta by xAI, tested across 13 shared challenges. Updated April 2026.
Which is better, GPT-5.1 Codex Max or Grok 3 Mini Beta?
GPT-5.1 Codex Max and Grok 3 Mini Beta are both competitive models. Compare their real outputs side by side below.
Key Differences Between GPT-5.1 Codex Max and Grok 3 Mini Beta
GPT-5.1 Codex Max is made by openai while Grok 3 Mini Beta is from xai.
No community votes yet. On paper, GPT-5.1 Codex Max has the edge — bigger model tier, newer.
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.
