Grok 3
Nothing here. The model returned empty. We stared at it for a while.
Grok 3 vs GPT-5.1 Codex Max
Compare Grok 3 by xAI against GPT-5.1 Codex Max by OpenAI, tested across 28 shared challenges. Updated March 2026.
Which is better, Grok 3 or GPT-5.1 Codex Max?
Grok 3 and GPT-5.1 Codex Max are both competitive models. Compare their real outputs side by side below.
Key Differences Between Grok 3 and GPT-5.1 Codex Max
Grok 3 is made by xai while GPT-5.1 Codex Max is from openai.
Our Verdict
Grok 3
GPT-5.1 Codex Max
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
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