Grok 3
Nothing here. The model returned empty. We stared at it for a while.
Grok 3 vs o3 Mini
Compare Grok 3 by xAI against o3 Mini by OpenAI, context windows of 128K vs 64K, tested across 28 shared challenges. Updated March 2026.
Which is better, Grok 3 or o3 Mini?
Grok 3 and o3 Mini are both competitive models. Context windows: 128K vs 64K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 and o3 Mini
Grok 3 is made by xai while o3 Mini is from openai. Grok 3 has a 128K token context window compared to o3 Mini's 64K.
Our Verdict
Grok 3
o3 MiniRunner-up
No community votes yet. On paper, Grok 3 has the edge — bigger model tier, newer, bigger context window.
Slight edge
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