OpenAI Astra for Law: GPT-6 Legal Search Index
On September 17, 2026, OpenAI released a video introducing Astra for Law, a specialized offering for lawyers and legal tech firms. Built on GPT-6 Astra, it features legal analysis instructions, deep work settings, and a Legal Search Index covering over 230 million URLs, alongside partner-built plugins from Thomson Reuters and others.
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OpenAI released a demonstration video on September 17, 2026, for "Astra for Law," a new product designed to support the expertise and judgment of lawyers and legal technology firms using GPT-6 Astra.
According to the episode description, Astra for Law combines GPT-6 Astra with specific instructions for legal analysis and writing, settings for thorough work, and a new "Legal Search Index." This index is stated to search U.S. case law, statutes, regulations, court rules, and administrative decisions across more than 230 million URLs, with sources added daily.
The announcement also includes the launch of 26 partner-built plugins (from partners like Thomson Reuters, Harvey, Legora, and iManage) and 47 community plugins for legal work in ChatGPT. The service is initially available to selected firms via Trusted Access, with API access coming soon.