AI funding week: Mirendil $1B, LangChain $300M, Rox $100M

Crunchbase News published its weekly list of the largest US startup financings for Nov. 7-13, 2026. According to the report, the large majority of the biggest rounds were AI-related, with some biotech, fintech and enterprise software mixed in.

The largest rounds

• Mirendil raised a $1 billion Series A for agentic AI aimed at research and development. Kleiner Perkins and Clearlake Capital led.
• Mercor raised $750 million in a Series D at a $20 billion valuation. The company connects AI developers with human experts for model training and evaluation.
• Torus announced $500 million in growth financing led by Magnetar Capital. It also introduced Foundry, which it describes as modular AI infrastructure for inference compute.

Rounds closest to business operations

LangChain closed a $300 million Series C at a $3 billion valuation, led by CapitalG. The company builds a platform to run, improve and govern AI agents.

Rox announced a $100 million Series B led by General Catalyst and March Capital. It develops an AI revenue agent for enterprise sales.

Imprint, a payments, loyalty and customer intelligence platform for brands, raised $130 million at a $1.9 billion valuation, led by Khosla Ventures.

The rest of the list

Path Robotics, which works on physical AI for manufacturing, also raised $300 million. Nominal, a maker of tools for hardware engineering, raised $240 million. Mavria, a company standardizing how AI infrastructure is built and deployed, said it had raised $130 million to date. Delix Therapeutics (biotech) and Databento (financial market data) each raised $100 million.

What the list does and does not tell you

The report only records announced rounds, valuations and lead investors. It says nothing about product roadmaps, pricing or customer results for any of these companies. Treat it as a map of where investors are putting money, not as a ranking of tools to adopt. The source notes that some rounds are reported late in the week, so the database may lag slightly.