Legal

Drafting legal analysis and arguments

AI applies research to client facts to help draft legal analysis, develop arguments or deal terms, distinguish holdings from dicta, and surface weaknesses or uncertainty in a position.

Why the human is still essential here

Attorneys must exercise legal judgment on the strength of arguments, ethical obligations, and final advice before anything is used in practice.

How people use this

Internal memo drafting

AI combines client facts and source authorities to draft an internal legal analysis memo that attorneys can refine.

Harvey / CoCounsel

Motion argument outline

AI builds an outline for a motion or brief, including supporting authorities, counterarguments, and points needing more evidence.

Harvey / Lexis+ AI

Issue-spotting for client advice

AI maps the client’s facts to likely legal issues and unresolved questions so counsel can shape advice faster.

Harvey / CoCounsel

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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.

O
OpenAIAI research and deployment company
Sep 17, 2026