Chrome ExtensionPlay 20 Questions with AI for Free
The mind-reading game. Think of anything at all and watch a real AI model narrow it down with 20 yes/no questions, or flip it and interrogate the AI to crack its secret. This is the game language models were born for. Three free games every day, no signup needed.
Opponents
80+ live AI models
Modes
Mind-read · Interrogate · Watch
Price
Free, 3 games/day
Platform
Browser, no signup
Set Up Your Game
Free: 3 games per day. No signup needed.
How to Play 20 Questions Against AI
Pick a direction
"AI reads your mind" makes the model ask the questions. "You interrogate" hides a secret on the server for you to crack.
Answer or ask
Answer with Yes, No, Sort of, or Don't know. Or type your own yes/no questions when you are the interrogator.
Twenty questions, one answer
Guesses count as questions. If the guesser cannot name the thing within 20, the secret keeper wins.
Frequently Asked Questions
How does the AI guess what I am thinking?
Pure deduction. Your thing never leaves your head; the model only sees your yes/no answers and narrows the space with each question, from alive-or-not down to the exact answer. Models are shockingly good at it.
Is playing really free?
Yes. Everyone gets three free games per day across all our AI games. No signup, no credit card, no downloads. The limit resets every 24 hours.
What should I think of to stump the AI?
Abstract or in-between things work best: concepts, fictional characters, or things that are hard to categorize. Everyday animals and objects usually fall within 15 questions.
Can the AI cheat when I interrogate it?
No. Its secret is fixed on the server the moment the game starts, before your first question, and every answer is checked against that stored secret.
Which AI models can I play with?
The model list is fetched in real time from OpenRouter, including GPT, Gemini, Claude, Grok, DeepSeek, Qwen, Llama and more. New models show up automatically as they are released.
Stumped a mind reader?
Learn to get exactly what you want from AI models. 20,000+ premium prompts, custom GPTs and courses inside the Promptslove members area.