OpenAI combines GPT-6 Astra, legal-analysis instructions and a legal index covering more than 230 million URLs. On 200 private legal-research questions, it reports 54.0% correctness versus 38.7% for Astra with ordinary web search. Selected firms receive Trusted Access in ChatGPT and Codex; the gpt-6-astra-law API is not yet available. The launch includes 26 partner plugins and 47 adaptable skills.
OpenAI launches Astra for Law with a dedicated legal index
2026-09-17Verified announcementWATCH
OpenAI combines GPT-6 Astra, legal-analysis instructions and a legal index covering more than 230 million URLs. On 200 private legal-research questions, it reports 54.0% correctness versus 38.7% for Astra with ordinary web search. Selected firms receive Trusted Access in ChatGPT and Codex; the gpt-6-astra-law API is not yet available. The launch includes 26 partner plugins and 47 adaptable skills.
Availability: Trusted Access for selected firms; API coming soon
Imported from the existing research archive. Migration preserves the recorded judgment and is not a fresh verification.
What this means for you
For legal AI teams, domain retrieval and workflow packaging appear to add more value than a base-model swap alone. Treat the result as a limited-access product trial because the benchmark is private and vendor-reported. API integration work should wait for documented availability and data-governance terms.
Evidence & related material
Technical details & scores
| Base Model | GPT-6 Astra |
|---|---|
| Legal Index | >230 million URLs |
| Private Benchmark | 54.0% vs 38.7% with ordinary web search |
| Availability | Trusted Access for selected firms; API coming soon |
| Ecosystem | 26 partner plugins; 47 community skills |
Technical impact 3
Engineering value 4
Adoption signal 3
Maturity 2
Verification cost 3
Risk 4