On September 17, OpenAI released Astra for Law, combining GPT-6 Astra, legal retrieval indexes, privacy governance, and plugin ecosystems into a professional AI foundational layer for law firms and legal tech companies. It targets not only legal Q&A but also real workflows such as research, transaction review, and litigation analysis.
230 million URLs support legal retrieval
Astra for Law can search U.S. case law, statutory law, regulations, court rules, and administrative decisions, with legal indexes covering over 230 million URLs and updated daily. With the Free Law Project's CourtListener data, its case database covers more than 99.9% of published U.S. precedents.
In the Vals AI Legal Research Bench's 200 verification questions, Astra for Law achieved an overall accuracy of 54.0% at the highest reasoning intensity, while GPT-6 Astra combined with regular web search achieved 38.7%, a relative improvement of about 40%.
OpenAI has begun to compete for the legal AI foundation
Astra for Law is positioned more than a single legal assistant. Legal AI companies like Harvey and Legora can develop products based on it, and OpenAI integrates professional tools like Relativity, Clio, iManage, and Intapp into ChatGPT through plugins.
The first ecosystem includes 26 partner plugins and 47 adaptable skills. Thomson Reuters has also integrated HighQ's case context into ChatGPT. The competition in legal AI is shifting from "whose model is smarter" to professional data, tool connections, and workflow entry points.
High-risk industries should first address the question of "dare to use."
Legal matters involve client confidentiality, and model capabilities are not the only barrier. OpenAI has launched the Trusted Access Program for eligible law firms, with API support for Zero Data Retention; ChatGPT Enterprise does not enter manual review processes by default.
OpenAI has also collaborated with Latham & Watkins to design information permissions, ethical walls, client instructions, and law firm oversight mechanisms. Astra for Law is initially open to some U.S. law firms and will enter ChatGPT and Codex as "GPT-6 Astra Law," with API versions released later.
Astra for Law is more like a vertical industry platformization experiment: when models, professional data, permission governance, and plugin ecosystems are packaged into the same infrastructure, the core competition for legal AI shifts from a single assistant to who can truly enter the daily production systems of professional institutions.
