OpenAI linked ChatGPT to 230 million legal sources. It got 54% right.
OpenAI launched Astra for Law on 17 September. SiliconANGLE reports it is not a new model: the company wrapped GPT-6 Astra in a legal search index and instructions for legal analysis.
The index covers U.S. case law, statutes, regulations and court rules across more than 230 million URLs.
On 200 questions from Vals AI's Legal Research Bench, Astra for Law passed the overall correctness check on 54%, SiliconANGLE reports. GPT-6 Astra with web search alone managed 38.7% on the same questions.
OpenAI's own demo film shows it mapping an IPO filing for a fictional company. The benchmark measured research answers, not filings.
Access starts with selected firms through a Trusted Access program. LawSites names Sullivan & Cromwell, Ropes & Gray and Cooley among the firms that built tools on it. An API version is planned, with no date or price announced.
For anyone buying AI for legal research, 54% on a benchmark is the figure to put next to the vendor's pitch, and every cited authority still needs a human check.
🎥 Video: OpenAI, official YouTube channel, 17 Sep 2026 · narration: AI voice
What pass rate would your legal team need before it stopped rechecking every citation?
What the captions say
- OpenAI built Astra for Law on ChatGPT.
- In this company demo, it maps an IPO filing.
- It searches more than 230 million legal URLs.
- On a 200-question test, it scored 54%.
- Plain web search scored 38.7%.
- Selected U.S. firms get it first.
- API access comes later, with no date.
