Law Departments Cut Outside Counsel Using AI, Pressuring Firms on Billing
In-house legal teams use AI to reduce outside counsel work, pressuring firms to rethink billing.
Why it matters: This shift impacts law firm revenues and business models as corporate legal departments drive AI efficiencies. Firms must adopt AI and new pricing strategies to stay competitive.
- AT&T's LegalEdge team handled nearly 100 matters internally within six months using AI.
- 64% of in-house counsel expect generative AI to reduce outside counsel reliance, per a 2025 survey.
- 54% of in-house legal professionals have cut outside counsel work due to AI use, per a 2026 survey.
- 81% of in-house teams expect outcome-based pricing to surpass billable hours within five years.
Corporate legal departments are increasingly deploying AI to handle legal work internally, cutting their reliance on outside counsel and disrupting traditional law firm billing models. A recent example is AT&T, which launched its LegalEdge team in January 2026. Combining experienced lawyers, legal operations pros, and AI, LegalEdge managed nearly 100 legal matters in its first six months, significantly reducing the demand for outside law firms. AT&T’s initiative highlights how AI integration within corporate legal teams drives efficiency and cost savings.
Surveys confirm this trend is widespread. In 2025, 64% of in-house counsel expected generative AI to reduce their dependence on outside lawyers, with 50% anticipating lower external legal costs. The adoption of generative AI more than doubled in corporate legal departments from 23% in 2024 to 52% in 2025, per a survey by Everlaw and the Association of Corporate Counsel. By 2026, 86% of in-house legal professionals were using generative AI, and 54% had already reduced the volume of work sent to outside counsel. These findings underscore AI's growing role in reshaping legal services consumption.
Companies like Brinks have also embraced AI tools such as CoCounsel to streamline workflows and lessen outside counsel reliance globally. Adecco Group Legal reported a 5–10% drop in outside counsel after adopting AI, while NovaTech Industries cut outside counsel spending by 40% using contract lifecycle management software. Brinks’ case illustrates this shift in practice.
As AI drives internal efficiencies, law firms face pressure to pass savings to clients through revamped billing models. According to a 2026 Everlaw survey, 92% of in-house professionals see AI-related cost savings from law firms, and 81% expect outcome-based pricing to surpass billable hours within five years. Gloria Lee, Chief Legal Officer at Everlaw, emphasizes that responsible generative AI use will allow firms to deliver faster, smarter, and more budget-conscious services. Similarly, Veta T. Richardson of the Association of Corporate Counsel notes in-house counsel are redefining legal service delivery, cost management, and value through AI.
This ongoing disruption compels law firms to integrate AI technologies and reconsider traditional billing to remain relevant and competitive in a market where clients increasingly control how and where legal work is done.
By the numbers:
- 64% — In-house counsel expect generative AI to reduce outside counsel reliance (2025)
- 54% — In-house legal pros reduced outside counsel work due to AI use (2026)
- 81% — Expect outcome-based pricing to eclipse billable hours within five years (2026)
Yes, but: While AI adoption is reducing outside counsel work, many firms still provide complex and specialized services that require expert human judgment beyond current AI capabilities.
What's next: Law firms are expected to accelerate AI integration and experiment with alternative fee arrangements as clients demand more cost-effective, outcome-driven legal services.