Astra for Law

530 points · 634 comments on HN · read original →

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OpenAI launches Astra for Law, a GPT-6 Astra-based foundation for legal AI.

OpenAI introduced Astra for Law, combining GPT-6 Astra with a legal search index covering over 230 million URLs of U.S. case law, statutes, and regulations. On Vals AI's Legal Research Bench, Astra for Law passed correctness checks on 54.0% of questions versus 38.7% for GPT-6 Astra with web search alone. Custom instructions guide legal analysis and writing. A Trusted Access Program offers zero data retention on the API. Partners include Harvey, Legora, Latham & Watkins, Sullivan & Cromwell, Ropes & Gray, Cooley, and Wachtell. 26 partner-built plugins integrate with tools like Relativity, Clio, iManage, and Thomson Reuters. ChatGPT for Word also launched.

What commenters are saying

Commenters largely agreed that the rich already win in legal battles, and Astra for Law may lower costs and democratize access rather than upend that dynamic. Some feared job losses for knowledge workers, while others argued lawyers (especially partners) will adapt and take on more cases. Hallucination risks were raised, though GPT-6 Astra has the lowest hallucination rate among tested models. A recurring point: lawyers must double-check outputs, but the assembly time savings are substantial. Several noted that using AI for contracts or advice still leaves the user liable if errors occur.