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Hierarchical Reasoning Model

A research AI model for reasoning puzzles such as Sudoku and mazes, inspired by how the brain plans.

Research-backedNew this week

What it does

HRM is a research model with two linked parts: one for slow, big-picture planning and one for fast, detailed work. Its makers say the design was inspired by the human brain.

The makers say it solves hard Sudoku puzzles and mazes after training on about 1,000 examples. The project shares code, training steps and some trained checkpoints; it needs graphics cards to run.

Who it's for

AI researchers and students interested in new approaches to AI reasoning.

Can I use it without coding?

Developers only. Running it needs programming skills and a graphics card. New to this? Start here.

Can I run it?

Cost
FreeNothing to pay or sign up for.
Runs on
Linux
Computer
Works best on a powerful computer or one with a graphics card (GPU)
Privacy
Runs on your own device: your data stays with you
API key
Not needed

Try it

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page. Copies with similar names exist for many popular projects.
  • License (Apache-2.0): Permissive: free to use, change and share, including for business.
  • More on staying safe

Where people are talking about it