GPT-6 Astra was trained on 11 Ironclad contracting workflows and scored 55.0% on OpenAI’s research evaluation, versus 41.6% for GPT-5.6 Sol.
Estimated time per attempt fell to 19.2 minutes from 37.0 minutes, as OpenAI used synthetic training tasks, reinforcement learning and Ironclad-hosted software environments to teach multi-step legal and procurement work.
The tasks covered configuring agreements, approvals and reusable legal terms across legal, commercial and procurement workflows that OpenAI estimates take experienced users 30 to 40 minutes each.
OpenAI said the partnership is the first in a broader push to work with a small number of software companies on specialized business software, while Ironclad said stronger models could expand AI’s role in contracting with human oversight still needed.