Harvey Expands Legal AI Platform With 500+ Pre-Built Agents and Custom Agent Builder

New updates have been reported about Harvey.

Harvey has rolled out more than 500 pre-built legal AI agents and an early access Agent Builder, positioning its platform as a full-stack environment for agentic legal workflows across major practice areas. The pre-configured agents address common tasks such as litigation support, contract work, and compliance, while Agent Builder allows law firms and in-house teams to transform their own procedures, knowledge bases, and precedent into customized agents that align with firm-specific workflows.

CEO Winston Weinberg said the industry has moved beyond generic AI assistants into an “era of legal agents,” framing Harvey’s strategy as giving organizations a choice between rapid deployment and deeply tailored solutions. The company reports that legal teams have already created more than 25,000 custom agents on its secure platform, which now supports over 100,000 lawyers at 1,500 organizations in more than 60 countries, and the new agents and builder will be rolled out to customers over the coming months.

Harvey emphasizes that its off-the-shelf agents are designed by practicing lawyers and tested against legal-specific benchmarks for accuracy and relevance, aiming to reduce implementation risk for firms exploring agentic automation at scale. The Agent Builder is pitched as low-friction infrastructure that lets customers embed their governance frameworks, approval flows, and domain expertise directly into agents, potentially lowering operating costs, standardizing work product quality, and accelerating matter throughput.

Innovation partners such as Willkie Farr & Gallagher are already applying Harvey’s agents in complex litigation, corporate transactions, and financial services mandates, creating a feedback loop that informs product development around reliability and real-world usage. As adoption grows, Harvey expects tighter integration between client and law firm environments, with agent design, monitoring, and governance becoming a core part of operational strategy for both outside counsel and corporate legal departments.

From a market perspective, this launch strengthens Harvey’s positioning as an “operating system” for legal and professional services rather than a point-solution provider, broadening its upsell opportunities across existing enterprise accounts. The combination of pre-built and customizable agents could deepen customer lock-in, expand usage-based revenue as new workflows are automated, and provide a defensible data and workflow moat as more legal work is executed and refined on the Harvey platform.

Backed by investors including Sequoia, Kleiner Perkins, GV, OpenAI Startup Fund, Coatue, Andreessen Horowitz, GIC, and EQT, Harvey is now competing directly in the emerging market for production-grade legal agents, where differentiation hinges on security, governance, and outcome reliability. The early access program for the 500+ agents and Agent Builder is expected to serve as a proving ground for additional use cases and product enhancements, with new agents added as customers surface demand in adjacent practice areas and cross-border matters.