GPT-4 vs Grok 4.20 Beta
Compare GPT-4 by OpenAI against Grok 4.20 Beta by xAI, context windows of 8K vs 2.0M, tested across 26 shared challenges.
Our Verdict
Grok 4.20 Beta
GPT-4Runner-up
No community votes yet. On paper, Grok 4.20 Beta has the edge — newer, bigger context window.
Grok 4.20 Beta is 10x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4
Input
$30.00
Output
$60.00
Grok 4.20 Beta
Input
$2.00
15× cheaper
Output
$6.00
10× cheaper
Grok 4.20 Beta is cheaper on both — 15× input, 10× output
Writing DNA
Style Comparison
Similarity
47%
Grok 4.20 Beta uses 61.7x more headings
GPT-4
Grok 4.20 Beta
59%Vocabulary57%
18wSentence Length20w
1.10Hedging0.35
0.8Bold4.2
2.5Lists3.7
0.00Emoji0.00
0.00Headings0.62
0.45Transitions0.14
Based on 15 + 23 text responses
Research
What we learned reading every model
FAQ
Common questions
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