Grok 3 vs o1
Compare Grok 3 by xAI against o1 by OpenAI, context windows of 128K vs 128K, tested across 53 shared challenges. Updated May 2026.
Which is better, Grok 3 or o1?
Grok 3 and o1 are both competitive models. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 and o1
Grok 3 is made by xai while o1 is from openai. Grok 3 has a 128K token context window compared to o1's 128K.
API pricing
Per 1M tokens
Grok 3
Input
—
Output
—
o1
Input
$15.00
Output
$60.00
Our Verdict
Grok 3
o1Runner-up
No community votes yet. On paper, Grok 3 has the edge — bigger model tier, newer.
Too close to call
Writing DNA
Style Comparison
Similarity
41%
Grok 3 uses 3.9x more emoji
Grok 3
o1
49%Vocabulary64%
18wSentence Length16w
0.94Hedging0.76
2.5Bold5.0
3.0Lists2.6
0.04Emoji0.00
0.65Headings0.44
0.08Transitions0.40
Based on 17 + 13 text responses
FAQ
