Paris-based startup, Parallel, has raised $20 million led by Index Ventures to develop AI agents for hospitals. The funding will accelerate deployment of its existing coding agents, support international expansion, and develop new agents for billing, admissions, and other hospital administrative workflows. The company's agents operate on top of existing systems rather than requiring API access, allowing a hospital to have the software running within a week. The firm's AI agents are already used in several dozen public and private hospitals in France. The $20m round was led by existing investors Frst, Y Combinator, and Hexa, with participation from investors including Arthur Mensch, CEO of Mistral AI, Felix Blossier and Quentin de Metz.