GPT-5.6 Sol vs Grok 4.20 Multi-Agent Beta
Compare GPT-5.6 Sol by OpenAI against Grok 4.20 Multi-Agent Beta by xAI, context windows of 1.1M vs 2.0M, tested across 53 shared challenges.
Our Verdict
GPT-5.6 Sol
Grok 4.20 Multi-Agent Beta
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok 4.20 Multi-Agent Beta is 5.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.6 Sol
Input
$5.00
Output
$30.00
Grok 4.20 Multi-Agent Beta
Input
$2.00
2.5× cheaper
Output
$6.00
5.0× cheaper
Grok 4.20 Multi-Agent Beta is cheaper on both — 2.5× input, 5.0× output
Writing DNA
Style Comparison
Similarity
69%
GPT-5.6 Sol uses 3.3x more emoji
GPT-5.6 Sol
Grok 4.20 Multi-Agent Beta
63%Vocabulary59%
15wSentence Length16w
0.79Hedging0.41
3.4Bold2.7
3.8Lists2.4
0.03Emoji0.00
0.95Headings0.26
0.08Transitions0.02
Based on 27 + 23 text responses
Research
What we learned reading every model
FAQ
