GPT-5.1
Each brother has 2 sisters. One of them is Sally herself, so there must be exactly one other girl.
So Sally has 1 sister.
GPT-5.1 vs Claude Sonnet 4
Compare GPT-5.1 by OpenAI against Claude Sonnet 4 by Anthropic, context windows of 400K vs 200K, tested across 32 shared challenges. Updated April 2026.
Which is better, GPT-5.1 or Claude Sonnet 4?
GPT-5.1 and Claude Sonnet 4 are both competitive models. GPT-5.1 costs $1.25/M input tokens vs $3/M for Claude Sonnet 4. Context windows: 400K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-5.1 and Claude Sonnet 4
GPT-5.1 is made by openai while Claude Sonnet 4 is from anthropic. GPT-5.1 has a 400K token context window compared to Claude Sonnet 4's 200K. On pricing, GPT-5.1 costs $1.25/M input tokens vs $3/M for Claude Sonnet 4.
Our Verdict
GPT-5.1
Claude Sonnet 4Runner-up
No community votes yet. On paper, GPT-5.1 has the edge — bigger model tier, newer, bigger context window.
Slight edge
Writing DNA
Style Comparison
Similarity
100%
Claude Sonnet 4 uses 87.9x more emoji
GPT-5.1
Claude Sonnet 4
62%Vocabulary62%
19wSentence Length111w
0.29Hedging0.40
3.5Bold5.0
7.2Lists9.3
0.00Emoji0.88
0.61Headings2.16
0.03Transitions0.33
Based on 14 + 17 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ