xAI: Grok 4.3 vs Sonar Pro Search
Compare xAI: Grok 4.3 by xAI against Sonar Pro Search by Perplexity, context windows of 1.0M vs 200K, tested across 52 shared challenges.
Our Verdict
xAI: Grok 4.3
Sonar Pro SearchRunner-up
No community votes yet. On paper, xAI: Grok 4.3 has the edge — newer, bigger context window, major provider backing.
xAI: Grok 4.3 is 6.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4.3
Input
$1.25
2.4× cheaper
Output
$2.50
6.0× cheaper
Sonar Pro Search
Input
$3.00
Output
$15.00
xAI: Grok 4.3 is cheaper on both — 2.4× input, 6.0× output
Writing DNA
Style Comparison
Similarity
56%
Sonar Pro Search uses 6.1x more headings
xAI: Grok 4.3
Sonar Pro Search
62%Vocabulary60%
16wSentence Length22w
0.46Hedging0.30
2.3Bold2.7
2.5Lists2.6
0.00Emoji0.00
0.34Headings2.08
0.14Transitions0.07
Based on 27 + 25 text responses
Research
What we learned reading every model
FAQ
