Introducing Astra for Law

Today, we’re introducing Astra for Law: a new foundation for law firms and legal technology companies to build AI products and workflows around their expertise. It combines GPT‑6 Astra, our latest and most powerful model, with settings, tools, and context tailored for professional legal work.

API customers including Harvey and Legora will be able to build on Astra for Law, bringing this intelligence into their own products and workflows. As our frontier models advance, we’ll bring these legal capabilities to our latest models.

We are also expanding our work on privacy and governance to give law firms specific controls for confidential client work. Firms can also customize Astra for Law using our 26 new ecosystem plugins that connect ChatGPT to the specialist tools firms already use, like Relativity and Clio.

The launch includes 9 community plugins from lawyers and legal engineers at LegalQuants, LECG, and Skills.law, with 47 custom skills that practitioners can adapt, extend, or draw inspiration from to do their work in ChatGPT. Community plugins give the people closest to the work a way to keep setting the standard for what these skills can do. We’re also making ChatGPT for Word generally available today, so lawyers can proofread, get suggested edits, and flag formatting issues in the tool they already rely on for drafting.

Our work with Wachtell, Lipton, Rosen & Katz brings the firm’s litigation and corporate expertise together with our frontier research and engineering to explore how AI can support the work involved in providing sophisticated legal judgment.

Astra for Law combines GPT‑6 Astra with a powerful legal search index and instructions for legal analysis and writing. Together, they amplify Astra’s capabilities across the legal practice, while giving firms and legal technology companies the freedom to build their own applications and workflows.

Our new legal search index is one of the tools Astra for Law can use. Legal research often begins with finding the exact right authority, locating the relevant passages, and understanding how relevant and binding they are to the situation at hand. The index helps Astra for Law do that work, and complements the licensed content and specialist products firms rely on from providers such as Thomson Reuters.

By using the legal search index, Astra for Law can search U.S. case law, statutes, regulations, court rules, and administrative decisions across a corpus of more than 230 million URLs, with sources added daily. Our work with Free Law Project, the nonprofit behind CourtListener, brings its case-law collection covering more than 99.9% of published U.S. precedential case law ⁠ (opens in a new window) into this research experience.