GPT-5.2 Pro vs Sonar Pro Search
Compare GPT-5.2 Pro by OpenAI against Sonar Pro Search by Perplexity, context windows of 400K vs 200K, tested across 31 shared challenges.
Our Verdict
GPT-5.2 Pro
Sonar Pro SearchRunner-up
No community votes yet. On paper, GPT-5.2 Pro has the edge — bigger model tier, newer, bigger context window, major provider backing.
Sonar Pro Search is 11x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GPT-5.2 Pro
Input
$21.00
Output
$168.00
Sonar Pro Search
Input
$3.00
7.0× cheaper
Output
$15.00
11× cheaper
Sonar Pro Search is cheaper on both — 7.0× input, 11× output
Writing DNA
Style Comparison
Similarity
69%
Sonar Pro Search uses 4.2x more transitions
GPT-5.2 Pro
Sonar Pro Search
62%Vocabulary60%
19wSentence Length22w
0.39Hedging0.30
8.6Bold2.7
3.8Lists2.6
0.00Emoji0.00
1.17Headings2.08
0.02Transitions0.07
Based on 10 + 25 text responses
Research
What we learned reading every model
FAQ
