Claude Fable 5 vs Sonar Pro Search
Compare Claude Fable 5 by Anthropic against Sonar Pro Search by Perplexity, context windows of 1.0M vs 200K, tested across 52 shared challenges.
Our Verdict
Claude Fable 5
Sonar Pro SearchRunner-up
No community votes yet. On paper, Claude Fable 5 has the edge — bigger model tier, newer, bigger context window, major provider backing.
Sonar Pro Search is 3.3x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
Claude Fable 5
Input
$10.00
Output
$50.00
Sonar Pro Search
Input
$3.00
3.3× cheaper
Output
$15.00
3.3× cheaper
Sonar Pro Search is cheaper on both — 3.3× input, 3.3× output
Writing DNA
Style Comparison
Similarity
59%
Claude Fable 5 uses 58.2x more emoji
Claude Fable 5
Sonar Pro Search
60%Vocabulary60%
22wSentence Length22w
0.49Hedging0.30
4.0Bold2.7
3.5Lists2.6
0.58Emoji0.00
1.09Headings2.08
0.05Transitions0.07
Based on 27 + 25 text responses
Research
What we learned reading every model
FAQ
