---
id: "b920"
language: "en"
library: "tools"
official_url: "https://github.com/chaidiscovery/chai-lab"
profile_updated_on: "2026-10-22"
---

# Chai-1

Predicts structures involving proteins, small molecules, DNA and RNA, with optional alignments, templates and restraints.

- Company / organization: Chai Discovery
- Category: Model development
- Official website: [https://github.com/chaidiscovery/chai-lab](https://github.com/chaidiscovery/chai-lab)
- Profile updated: 2026-10-22


## Overview

Chai-1 is Chai Discovery’s public molecular-structure model. chai-lab exposes CLI and Python inference with optional MSAs, templates, restraints and covalent-bond information; the default workflow does not require supplied MSAs or templates. The README explicitly licenses code and weights under Apache 2.0. This record covers Chai-1, not access to subsequent internal models or antibody-design platforms.

## Official sources and references

- [Official website](https://github.com/chaidiscovery/chai-lab)
- [Documentation](https://github.com/chaidiscovery/chai-lab/blob/main/README.md)

## Reading & subscriptions

- [Interactive profile](../../../products/chai-1--b920.html)
- [Read](../../../read/en/products/chai-1--b920.html)
- [JSON](../../../read/en/products/chai-1--b920.json)

Descriptions summarize public information; consult official websites for features, pricing and regional availability.