Arga raises $10M to build sandbox environments for enterprise AI agent training

Training an AI agent on a live production system is a bit like teaching someone to drive in rush-hour traffic. Technically possible, but the consequences of a mistake are unpleasant for everyone involved. Arga Labs thinks it has a better approach: build a perfect replica of the road and let the AI crash there instead. The San Francisco-based startup has raised $10 million in a seed funding round led by General Catalyst, with Box Group, Emergence, Gradient, and SV Angel also participating. The company was previously backed by Y Combinator and counts Comma Capital and Scribble Ventures among its early supporters. What Arga actually builds Arga’s core product is a platform that creates high-fidelity sandbox environments, essentially digital twins of third-party services that enterprises already depend on. Think Stripe for payments, Slack for communications, and the constellation of APIs that modern software teams wire together every day. These replicas mirror the same APIs and behaviors as the real production systems. That means an AI agent running inside an Arga sandbox interacts with what feels like the genuine article, complete with realistic responses, latency characteristics, and...