Breaking

OpenAI Launches Astra for Law With Legal Search Index Covering More Than 99.9% of U.S. Precedential Case Law

September 17, 2026 at 17:24 EDT

Foundation Models
Sales & Business

OpenAI introduced Astra for Law on September 17, 2026, packaging GPT-6 Astra with legal-specific tools, instructions and a search index for professional legal work. The product is aimed at law firms and legal technology companies, with initial access for selected firms through Trusted Access in ChatGPT and Codex and API availability planned under the model name gpt-6-astra-law.

Sep. 17, 2026 · OpenAI

Astra for Law targets legal research

OpenAI paired GPT-6 Astra with a legal search index, legal writing instructions and firm controls for professional legal work.

>99.9%

published U.S. precedential case law coverage

230M+

URLs across legal and related sources

partner-built plugins for legal workflows

Benchmark correctness improved

38.7%

GPT-6 Astra with web search

54.0%

Astra for Law

The legal configuration showed a 40% relative improvement on the tested legal research questions.

What users may value

Faster retrieval, stronger grounding in authority, precise citations and integrations with firm tools.

What still needs review

A 54.0% correctness result means lawyer oversight remains central for citations, adverse authority and judgment.

From question to legal work product

Search authorities

→

Retrieve passages

→

Apply to facts

→

Lawyer review

Continue reading

The rest of this article is for AI News Blitz readers. Choose an option below to keep reading.