GPT-4o mini
Sally has no sisters. She is the only girl in her family, as the problem states that she has 3 brothers and they each have 2 sisters, which refers to Sally herself. Therefore, the number of sisters Sally has is 0.
Compare GPT-4o mini by OpenAI against Claude Sonnet 4 by Anthropic, context windows of 128K vs 200K, tested across 25 shared challenges. Updated April 2026.
GPT-4o mini and Claude Sonnet 4 are both competitive models. GPT-4o mini costs $0.15/M input tokens vs $3/M for Claude Sonnet 4. Context windows: 128K vs 200K tokens. Compare their real outputs side by side below.
GPT-4o mini is made by openai while Claude Sonnet 4 is from anthropic. GPT-4o mini has a 128K token context window compared to Claude Sonnet 4's 200K. On pricing, GPT-4o mini costs $0.15/M input tokens vs $3/M for Claude Sonnet 4.
No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, newer, bigger context window.
GPT-4o mini is 25x cheaper per token — worth considering if cost matters.
Claude Sonnet 4 uses 87.9x more emoji
Ask 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.

25 fights queued
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Sally has no sisters. She is the only girl in her family, as the problem states that she has 3 brothers and they each have 2 sisters, which refers to Sally herself. Therefore, the number of sisters Sally has is 0.
I need to think through this step-by-step.
Given information:
Let me work out how many sisters are in the family total.
If each of Sally's 3 brothers has 2 sisters, and all the brothers are in the same family, then there must be 2 sisters total in the family.
Since Sally is one of those sisters, and there are 2 sisters total, Sally must have 1 sister.
Therefore, Sally has 1 sister.
Tests an AI's understanding of number representation
Tests an AI's randomness and creativity
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Recreate an interactive, classic Mario level in a single HTML file.
Tests an AI's ability to replicate an existing UI with Tailwind CSS
Tests an AI's ability to create interactive web elements
Tests an AI's ability to create a detailed world map in SVG format
Generate SVG art of a randomly chosen animal in a setting of its choosing.
13+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy