Claude Sonnet 3.6 (2022-10-22) vs OpenAI o3
Compare Claude Sonnet 3.6 (2022-10-22) by Anthropic against OpenAI o3 by OpenAI, tested across 54 shared challenges. Updated May 2026.
Which is better, Claude Sonnet 3.6 (2022-10-22) or OpenAI o3?
Claude Sonnet 3.6 (2022-10-22) and OpenAI o3 are both competitive models. Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 3.6 (2022-10-22) and OpenAI o3
Claude Sonnet 3.6 (2022-10-22) is made by anthropic while OpenAI o3 is from openai. On pricing, Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens vs $10/M for OpenAI o3.
API pricing
Per 1M tokens
Claude Sonnet 3.6 (2022-10-22)
Input
$3.00
3.3× cheaper
Output
$15.00
2.7× cheaper
OpenAI o3
Input
$10.00
Output
$40.00
Claude Sonnet 3.6 (2022-10-22) is cheaper on both — 3.3× input, 2.7× output
Our Verdict
OpenAI o3
Claude Sonnet 3.6 (2022-10-22)Runner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, newer.
Too close to call
Writing DNA
Style Comparison
Similarity
54%
OpenAI o3 uses 6.7x more headings
Claude Sonnet 3.6 (2022-10-22)
OpenAI o3
66%Vocabulary68%
74wSentence Length14w
0.72Hedging0.26
0.3Bold0.7
8.9Lists3.0
0.00Emoji0.00
0.06Headings0.38
0.09Transitions0.12
Based on 21 + 16 text responses
FAQ
