OpenAI Launches Astra for Law With 230 Million URLs and 40% Better Research Accuracy
Updated
Updated · OpenAI · Sep 17
OpenAI Launches Astra for Law With 230 Million URLs and 40% Better Research Accuracy
3 articles · Updated · OpenAI · Sep 17
Summary
Astra for Law combines GPT-6 Astra with a legal search index, legal-writing instructions and governance controls, and will first reach selected law firms through Trusted Access in ChatGPT and Codex before coming to the API.
On 200 U.S. legal research questions from Vals AI’s private validation set, the system passed overall correctness checks on 54.0% of questions versus 38.7% for GPT-6 Astra with web search alone—a 40% relative improvement.
The legal index searches more than 230 million URLs across U.S. case law, statutes, regulations, court rules and administrative decisions, with Free Law Project data covering more than 99.9% of published U.S. precedential case law.
OpenAI said eligible firms will get Zero Data Retention on the API and default exclusion from human review in ChatGPT Enterprise, while Latham & Watkins is helping shape permissions, ethical walls and oversight controls.
Harvey and Legora are among API customers building on the product, and OpenAI also launched 26 partner plugins plus 9 community plugins as it pushes a broader legal AI ecosystem.