Human or Not?

Human or Not?

Human or Not? is a free chat game by AI21 where players talk with a hidden partner for two minutes and then guess whether they were chatting with a human or an AI.

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Last Updated Nov 10, 2026
Human or Not? screenshot

About

Human or Not? is a free browser-based social experiment built by AI21, the Israeli AI company known for its work on large language models and enterprise model post-training. The game presents a modern take on Alan Turing's classic imitation game: each player is paired anonymously with either a real person or an AI language model, and after a two-minute text conversation they must decide which one they were talking to.

The concept is simple. Players open the site, start a chat, and type freely about anything they like. When the timer ends, the game reveals whether the conversation partner was human or machine, along with the correct answer. Beyond entertainment, the experiment gives researchers and the public a casual way to observe how convincingly modern conversational AI can mimic human dialogue, and AI21 has published aggregate findings from the game about how often people are fooled.

Key Features

Two-minute anonymous chats: Each round pairs a player with an unseen partner for a short, timed conversation before the reveal.
Human or AI reveal: At the end of every chat, the game tells players whether they were talking to a person or an AI model and whether their guess was right.
Social Turing test format: The game is framed as a crowd-sourced, updated version of the classic Turing test, making the concept easy for anyone to grasp.
Free and browser-based: There is no fee to play, and the game runs directly on the website without a download or account requirement.
Open conversation topics: Players can steer the discussion anywhere, which is part of what makes human detection both easy and surprisingly hard.
Backed by an AI research company: AI21, the team behind the game, develops language models and publishes research, lending the experiment credibility.

Pricing & Fees

  • Pricing: The game is free to play.
  • Platform availability: It is played directly in a web browser at humanornot.ai, with no installation required.
  • Results and statistics: AI21 has shared aggregate results from the experiment showing how frequently players misidentified AI partners as human.

Who It's For

Human or Not? suits casual players who enjoy quick, unpredictable chat experiences, as well as students and educators looking for a hands-on illustration of the Turing test in a modern setting. It is also a useful reference for writers, journalists, and researchers examining how well conversational AI can pass as human. Anyone curious about the current state of chatbot realism can get a first-hand sense of it in a single two-minute round.

FAQ

What is Human or Not??It is a free online game by AI21 in which players hold a two-minute anonymous chat and then guess whether their partner was a human or an AI.

Is Human or Not? free to play?Yes, the game is free and playable directly in a browser at humanornot.ai.

Who made Human or Not??The game was created by AI21, an AI company that builds large language models and offers enterprise post-training services.

Do I need to install anything or create an account?No installation is needed; the game runs on the website, and a typical round requires no setup beyond opening the page.

How accurate are players at spotting AI?AI21's published aggregate results show that a meaningful share of players mistake AI partners for humans, though individual results vary widely with conversation style.