xAI: Grok 4 vs Solar Pro 3
Compare xAI: Grok 4 by xAI against Solar Pro 3 by Upstage, context windows of 256K vs 128K, tested across 39 shared challenges.
Our Verdict
xAI: Grok 4
Solar Pro 3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4
Input
$3.00
Output
$15.00
Solar Pro 3
Input
$0.000
Output
$0.000
Writing DNA
Style Comparison
Similarity
68%
Solar Pro 3 uses 2.7x more transitions
xAI: Grok 4
Solar Pro 3
53%Vocabulary50%
18wSentence Length21w
0.67Hedging0.42
2.7Bold6.5
2.7Lists2.2
0.07Emoji0.17
0.86Headings0.56
0.04Transitions0.12
Based on 21 + 18 text responses
Research
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