GPT-4o opponent
Normal mode uses OpenAI's GPT-4o to generate the AI's chess moves.
ChessGPT
Freemium
A free browser chess game where you play against GPT-4o or Stockfish.
What is ChessGPT?
ChessGPT is a free browser-based chess game that lets you play against an AI opponent without creating an account or downloading software. Normal mode uses OpenAI's GPT-4o to generate chess moves through prompt engineering, while Hard mode uses Stockfish at depth 15. The game is designed for direct play in a modern web browser, with legal moves enforced by the game interface and results eligible for a global leaderboard.
What can ChessGPT do?
Stockfish hard mode
After a player beats ChessGPT in normal mode, Hard mode unlocks with Stockfish, a UCI-compatible chess engine running at depth 15.
Browser-based play
The game runs in a modern web browser and does not require a download or account.
Legal move enforcement
The chess interface uses chess.js to enforce legal moves on the client side.
Global leaderboard
Players can submit results to a leaderboard with weekly, monthly, and all-time filters.
Use Cases
“Practice against an AI opponent”
Play a browser chess game against GPT-4o in Normal mode when you want an accessible opponent without setting up an account or installing software.
“Test stronger play”
Beat the Normal-mode opponent to unlock Hard mode and challenge Stockfish at depth 15.
“Play a quick web game”
Start a chess match directly in a modern browser when you want a lightweight game that requires no download.
“Track competitive results”
Submit game results and compare wins through the global leaderboard's weekly, monthly, or all-time views.
Frequently Asked Questions
Do I need an account to play ChessGPT?
No. ChessGPT is free to play and requires no account or download.
Which AI plays against me?
Normal mode uses OpenAI's GPT-4o. Hard mode uses Stockfish at depth 15.
How do I unlock Hard mode?
Hard mode unlocks after you beat ChessGPT in Normal mode.
Does ChessGPT run in a browser?
Yes. The game is designed to run in any modern web browser.
Does ChessGPT have a leaderboard?
Yes. Players can submit results to a global leaderboard with weekly, monthly, and all-time filters.
Quick Facts
- Category
- Browser chess game
- Platform
- Modern web browsers
- AI modes
- Normal: GPT-4o; Hard: Stockfish depth 15
- Access
- Free to play; no account or download required
- Leaderboard
- Global rankings with weekly, monthly, and all-time filters
- Website
- chessgpt.ai
ChessGPT Traffic Analysis
Traffic data is for reference only.
- Domain Rating
- 10
