OpenAI Introduces Astra for Law With Legal Search, Plugins, And Privacy Controls

OpenAI has launched Astra for Law, a new GPT-6 Astra-powered offering that combines legal research, specialized analysis instructions, privacy controls, and integrations to help law firms and legal technology companies build AI-powered professional workflows.

The launch brings a dedicated legal search index spanning more than 230 million URLs, alongside Trusted Access through ChatGPT and Codex, 26 partner-built plugins, and planned API availability.

TL;DR

 

• Astra for Law combines GPT-6 Astra with a dedicated legal search index and specialized legal instructions.
• Its search corpus covers more than 230 million URLs across U.S. case law, statutes, regulations, court rules, and administrative decisions.
• OpenAI says it scored 54% on a legal research benchmark, versus 38.7% for GPT-6 Astra with web search.
• Access initially remains limited to selected law firms.

OpenAI Gives GPT-6 Astra A Legal Research Layer

According to OpenAI, Astra for Law is designed as a foundation that law firms and legal technology companies can build products and workflows around. Rather than being a separate foundation model, it combines GPT-6 Astra with settings, tools, context, and instructions tailored specifically for professional legal work.

Source

A central part of that configuration is its new legal search index. OpenAI says Astra for Law can search U.S. case law, statutes, regulations, court rules, and administrative decisions across a corpus spanning more than 230 million URLs, with additional sources being added daily.

The company is also working with nonprofit Free Law Project to integrate CourtListener's case-law collection, which covers more than 99.9% of published U.S. precedential case law.

Digit highlighted the same research capabilities in its coverage, noting that the system is designed to move beyond simply locating documents by helping lawyers find relevant authorities, identify passages, apply them to client facts, and surface weaknesses or uncertainty in legal arguments.

Astra For Law Beats GPT-6 Astra With Web Search In OpenAI Test

OpenAI tested the complete Astra for Law configuration using 200 U.S. legal research questions from the private validation set of Vals AI's Legal Research Bench.

At the highest reasoning setting, OpenAI says Astra for Law passed the benchmark's overall correctness check on 54% of questions, compared with 38.7% for GPT-6 Astra using web search alone. That represents a 40% relative improvement according to the company.

On questions focused on case law, Astra for Law found 24% more reference cases. OpenAI also said it retrieved up to 54% more relevant passages from the correct court opinions on an audited set of target passages when compared at the same reasoning level.

Gadgets 360 and Digit both highlighted the 54% benchmark result, although the figures remain OpenAI's reported evaluation of its own system rather than an independent assessment commissioned by the publications.

Niko Grupen, Head of Applied Research at legal AI company Harvey, said early testing showed strength in “grounding answers in on-point authorities, citing with precision, and offering practical, advisory guidance.”

OpenAI Adds Privacy Controls For Confidential Legal Work

Confidentiality is another major focus of Astra for Law.

OpenAI has created a Trusted Access Program for eligible law firms, giving lawyers and people working under their supervision access to the system for professional legal work. Eligible firms will have Zero Data Retention on OpenAI's API, while ChatGPT Enterprise usage is excluded from human review by default.

OpenAI is also working with Latham & Watkins on controls covering information permissions, ethical walls, client instructions, and firm oversight. The company says the work is intended to address the governance requirements that come with applying generative AI to confidential and high-stakes legal matters.

Gadgets 360 similarly highlighted these privacy and governance controls as a central part of the launch, alongside the platform's legal research capabilities.

26 Legal Plugins Connect ChatGPT With Specialist Tools

OpenAI is also launching 26 partner-built plugins that connect ChatGPT to products and knowledge systems already used by legal professionals.

For example, iManage can let lawyers create a negotiation brief in ChatGPT and save it to a matter file, while Intapp can identify activities that may require a time entry. DeepJudge can surface previous deals for comparison, while Thomson Reuters is bringing HighQ matter context into ChatGPT and previewing a CoCounsel Legal connector.

 

OpenAI is also releasing nine community plugins from lawyers and legal engineers, containing 47 custom skills that practitioners can adapt for their own workflows. Separately, ChatGPT for Word became generally available alongside the announcement, allowing users to proofread documents, receive editing suggestions, and identify formatting issues without leaving Word.

OpenAI has already been working with firms including Sullivan & Cromwell, Ropes & Gray, and Cooley on custom legal workflows.

Sullivan & Cromwell developed an agreement analysis tool that incorporates negotiating playbooks and precedents, Ropes & Gray worked on a deal diligence system, and Cooley created a tool called GO Public to assist with work around IPO preparation and filings.

Who Can Use Astra For Law?

Astra for Law is initially being offered to selected law firms through Trusted Access in ChatGPT and Codex.

OpenAI says it will appear in the model picker as GPT-6 Astra Law, while API access is coming later under the name gpt-6-astra-law. Harvey and Legora are among the API customers expected to build Astra for Law into their own products and workflows.

OpenAI has not announced public pricing or a firm date for broader API availability in its launch post.

NewsBytes characterized the announcement as another step in the growing competition to bring specialized AI into the legal industry, where legal research, drafting, document review, and firm-specific workflows have become increasingly important targets for AI companies.

For OpenAI, Astra for Law also signals a move beyond supplying a general-purpose frontier model. The company is packaging GPT-6 Astra with domain-specific search, instructions, integrations, and governance controls aimed at professional environments where the source of an answer, access permissions, and human judgment can matter as much as the answer itself.