Claude Sonnet 5 vs OpenAI: GPT-5.6 Sol
Compare Claude Sonnet 5 by Anthropic against OpenAI: GPT-5.6 Sol by OpenAI, in 3 community votes, claude sonnet 5 wins 67% of head-to-head duels, context windows of 1.0M vs 1.1M, tested across 54 shared challenges.
Web Design: Claude Sonnet 5 wins 100% of votes
Our Verdict
Claude Sonnet 5Winner
OpenAI: GPT-5.6 SolRunner-up
Pick Claude Sonnet 5. In 3 blind votes, Claude Sonnet 5 wins 67% of the time. That's not luck.
Claude Sonnet 5 particularly excels in Web Design. Claude Sonnet 5 is 3.0x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
Claude Sonnet 5
Input
$2.00
2.5× cheaper
Output
$10.00
3.0× cheaper
OpenAI: GPT-5.6 Sol
Input
$5.00
Output
$30.00
Claude Sonnet 5 is cheaper on both — 2.5× input, 3.0× output
Writing DNA
Style Comparison
Similarity
51%
Claude Sonnet 5 uses 24.1x more emoji
Claude Sonnet 5
OpenAI: GPT-5.6 Sol
59%Vocabulary63%
35wSentence Length15w
0.53Hedging0.79
3.5Bold3.4
3.5Lists3.8
0.79Emoji0.03
1.25Headings0.95
0.06Transitions0.08
Based on 27 + 27 text responses
Research
What we learned reading every model
FAQ
