Grok 3
Nothing here. The model returned empty. We stared at it for a while.
Grok 3 vs GPT-4.5
Compare Grok 3 by xAI against GPT-4.5 by OpenAI, in 3 community votes, grok 3 wins 100% of head-to-head duels, context windows of 128K vs 128K, tested across 24 shared challenges. Updated March 2026.
Which is better, Grok 3 or GPT-4.5?
Grok 3 is the better choice overall, winning 100% of 3 blind community votes on Rival. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 and GPT-4.5
Grok 3 is made by xai while GPT-4.5 is from openai. Grok 3 has a 128K token context window compared to GPT-4.5's 128K. In community voting, In 3 community votes, Grok 3 wins 100% of head-to-head duels.
In 3 community votes, Grok 3 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 3+ human preference judgments for this pair.
Our Verdict
Grok 3Winner
GPT-4.5Runner-up
Pick Grok 3. In 3 blind votes, Grok 3 wins 100% of the time. That's not luck.
Clear winner
Writing DNA
Style Comparison
Similarity
89%
Grok 3 uses 3.9x more emoji
Grok 3
GPT-4.5
49%Vocabulary63%
18wSentence Length16w
0.94Hedging0.57
2.5Bold4.7
3.0Lists6.4
0.04Emoji0.00
0.65Headings1.30
0.08Transitions0.54
Based on 17 + 11 text responses
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