Welcome to Rei Labs

Build with Core through Adapt-1 or Rei Chat, and explore the research behind adaptive intelligence.

REI Labs builds Core, an adaptive reasoning substrate that preserves useful structure, revises it when evidence changes, and returns results applications can inspect and use.

Choose the surface that matches your integration. You can start with a direct API call or a conversational workflow.

Start building

Make an Adapt-1 call

Authenticate, choose a route, and return the first structured result.

Choose an Adapt-1 workflow

Start from the result the application needs, with learner settings left at their defaults.

Start with Rei Chat

Authenticate and make the first conversational API call.

At a glance

• Retained, revisable structure: Later work can begin from useful constraints, relationships, and evidence formed earlier.
• Learning through use: Observations and outcomes can change which task-relevant structure carries support.
• Inspectable results: Applications can consume route-defined outputs and supporting evidence without requiring generated language.

Research and resources

Research direction

Read the principles guiding REI Labs’ work on adaptive intelligence.

Lab and resources

Explore research artifacts, model releases, and supporting material.