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Intapp and OpenAI Bring Frontier AI to Business of Law


Intapp and OpenAI Bring Frontier AI to Business of Law
  • by: Business Wire
  • |
  • September 18, 2026

Intapp  the governed AI platform for professional firms in highly regulated industries, announced its Celeste plug-in for ChatGPT Enterprise.

Most of the attention paid to AI in law over the past two years has gone to the practice of law, lowering the cost of legal research, drafting, and review. Far less has gone to the business of law: winning new clients, onboarding lateral partners, taking on the right matters, realizing revenue, and running the whole enterprise profitably. That is the work that decides whether or not a firm grows.

Quick Intel

  • Collaboration Launch: Intapp collaborates with OpenAI to bring frontier AI to business of law with Celeste plug-in for ChatGPT Enterprise announced from New York.
  • Business of Law Focus: Plug-in redefines how firms win new business, manage risk, and grow profitability beyond practice of law tasks like research, drafting and review.
  • Celeste AI Coworker: Celeste is Intapp's expert AI coworker designed to safely scale AI to run business workflows end to end under firm's control and compliance, built on two decades of encoding firm ways of working.
  • Entitled Access: Lawyers working in ChatGPT Enterprise can capture work, check against outside counsel guidelines, bill accurately, source opportunities, and find introductions, reaching only what firm has entitled them to reach.
  • Governance Controls: Firm's ethical walls, confidentiality obligations, and need-to-know rules apply to what Celeste returns, extending governed firm intelligence deeper into daily work.
  • Availability: Intapp Celeste plug-in for ChatGPT Enterprise available to eligible Intapp Celeste clients beginning today, featured at OpenAI for Law launch.

Celeste Plug-In Redefines How Law Firms Win Business and Grow Profitability

The business of law runs on a firm's unique ways of working and knowledge. Intapp has spent more than two decades encoding this into systems that firms depend on to grow their clients, clear their conflicts, enforce ethical walls, and capture their time. Celeste is Intapp's expert AI coworker, designed to safely scale AI to run business workflows from start to finish, under the firm's control and compliance obligations.

The most successful firms will be the ones that combine what makes them unique — their expert judgment, their methods, their proprietary data, and their compliance rules — with power of frontier AI models. Together, Celeste and OpenAI's frontier models will help firms onboard new clients and matters faster, generate more accurate billings, and free up more time for lawyers to focus on higher judgment work.

Entitled Access with Ethical Walls and Confidentiality in ChatGPT Enterprise

Featured at today's launch, the Intapp Celeste plug-in brings a firm's proprietary context and methods into ChatGPT Enterprise. Professionals can capture work as it happens, check it against the firm's outside counsel guidelines, and bill it accurately, source new opportunities and prepare for client meetings on work the firm has already cleared for conflicts, and find an introduction to a prospect from inside the firm's own relationships.

Importantly, a lawyer reaches only what the firm has entitled them to reach. The firm's ethical walls, confidentiality obligations, and need-to-know rules apply to what Celeste returns. This is the latest step in Intapp and OpenAI's work to extend governed firm intelligence deeper into the way lawyers work every day.

"The law is the same for every firm. What a firm knows about its clients, its methods, its matters, and the judgment built from handling them for decades — that's the firm's real franchise. We've spent more than two decades encoding it into the systems firms already run on. Being available in ChatGPT Enterprise means that firms now run inside the models lawyers are already using," said Thad Jampol, Co-founder and Chief Product Officer, Intapp.

"We believe the next generation of AI for law will be built around what makes each firm distinctive - its expertise, judgment, and way of working. By building alongside Intapp, we're turning that expertise into AI lawyers can use every day, creating new ways for firms to serve their clients and shape the future of legal work," said Jason Boehmig, General Manager, Legal Industry, OpenAI.

 

About Intapp

Intapp is the governed AI platform for professional firms in highly regulated industries. Intapp’s vertically tailored agentic solutions are built for the specialized workflows, complex relationship networks, and professional compliance requirements of accounting, consulting, investment banking, law, private capital, and real assets firms. By applying Firm AI to core processes and data, Intapp helps partners, dealmakers, and advisors drive firm growth, manage compliance, and improve profitability.

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