Law Firms Shift From Buy vs. Build to Tech Partnerships for AI
Law firms are prioritizing partnerships with AI tech firms over building tools internally.
Why it matters: This shift redefines legal tech strategy, requiring law firms to adapt to collaboration models to integrate AI efficiently and stay competitive in client services.
- Weil, Gotshal & Manges LLP partnered with Google Cloud to deploy Gemini Enterprise for Legal AI in August 2026.
- Willkie Farr & Gallagher LLP integrated OpenAI's Codex into their AI platforms in July 2026.
- Goodwin Procter aims for 90% AI tool usage among employees by the end of 2026.
- Law firms increased technology investments by 9.7% in 2025, focusing heavily on AI integration.
The traditional question of whether law firms should build technological solutions internally or buy existing products is becoming obsolete as partnerships emerge as the preferred legal tech strategy. Instead of investing solely in in-house development, firms are increasingly joining forces with leading technology providers to deploy advanced AI-driven tools that streamline legal workflows.
For example, on August 25, 2026, Weil, Gotshal & Manges LLP announced a strategic collaboration with Google Cloud to deploy Gemini Enterprise for Legal, a purpose-built AI platform designed to assist with legal brief preparation, citation verification, contract management, and regulatory monitoring. The partnership reflects Weil's commitment to combining advanced technology with legal expertise. As Ramona Nee, Weil’s incoming Executive Partner, said, "We believe the future of legal services will be built by combining the best technologies with the best legal judgment." (weil.com)
Similarly, Willkie Farr & Gallagher LLP forged a collaboration with OpenAI in July 2026, integrating OpenAI's Codex into their AI platforms to improve legal and business operations. This partnership exemplifies the growing trend of law firms leveraging external AI capabilities to meet client demands for speed and efficiency (legaltechdigest.com).
Goodwin Procter LLP represents another angle of this evolution, positioning itself as an 'AI-native' firm by aiming for 90% employee adoption of AI tools by the end of 2026. Eric Tan, Chief Digital and Technology Officer at Goodwin, emphasized that "a lot of our clients, especially in the VC-private equity space, they're looking for more speed." (law360.com)
These partnerships occur amid a broader industry shift: in 2025, law firms increased technology investments by 9.7%, focusing heavily on generative AI and knowledge management tools, which grew by 10.5%. Research shows firms with formal AI strategies are 3.9 times more likely to realize critical benefits, spotlighting the strategic importance of tech collaborations (thomsonreuters.com, lawnext.com).
Google's General Counsel Halimah DeLaine Prado highlighted that AI tools like Gemini Enterprise can significantly aid legal professionals but "cannot replace human judgment," underscoring the complementary role of AI in legal services (axios.com).
The move towards partnership-driven technology adoption signals a paradigm shift in legal services, where collaboration between law firms and AI tech providers drives innovation and competitive advantage.
By the numbers:
- 9.7% — increase in law firms' technology investments in 2025
- 10.5% — growth in spending on knowledge management tools in 2025
- 3.9x — likelihood of firms with formal AI strategies experiencing critical benefits
Yes, but: While partnerships speed AI adoption, detailed impact metrics on performance and client satisfaction remain limited.
What's next: Law firms will likely deepen collaborations with AI providers and increase employee AI adoption targets through 2026.