Agent Builder: Next Evolution of Legal Workflow Automation

Harvey has announced the upgrade of its Workflow Builder to Agent Builder, a new feature designed to enable legal teams to build custom agents for complex legal tasks. This evolution expands on Harvey's existing agentic infrastructure, which already powers significant workflows across law firms and in-house legal teams.

Current Agent Usage and Impact

Harvey's platform currently receives 400K+ agentic queries daily, demonstrating the scale at which agents are being used for tasks like contract reviews and document editing. The platform has already extracted 20M+ terms in review tables to streamline document reviews across litigation and transactional work. Additionally, legal teams have created 445,000+ custom workflows using the existing Workflow Builder, with notable customers like GSK Stockmann using agentic workflows to accelerate due diligence reviews, and Ashurst building practice-group-specific workflows that save teams hours on tasks like lease summaries.

What's New

Agent Builder leverages improvements in underlying AI models to enable more sophisticated automation. While Workflow Builder required teams to define inputs, set specific steps, and rely on consistent outputs, Agent Builder is designed to handle more complex, multi-step tasks while maintaining the quality and control that legal teams require. The product allows teams to create agents without sacrificing precision—critical for legal work where accuracy and auditability are non-negotiable.

Why It Matters

As AI model capabilities improve, Harvey is positioning Agent Builder to help legal teams scale their expertise further. The tool addresses a clear market need: legal teams need automation that can handle nuanced, interconnected tasks across contracting, due diligence, litigation, and knowledge work—not just linear, step-by-step processes. This positions Harvey's customers to build proprietary AI workflows tailored to their firm's specific practices.