Exclusive: Cfo.ai launches an agentic CFO for business founders

Runway Financial has decided to stop being an accounting software company and start acting like a virtual finance chief. The startup is rebranding as cfo.ai and making Ari its flagship product: an AI agent built for startup founders and independent business owners who would rather not live inside spreadsheets.

Ari plugs into tools many companies already use, including NetSuite, QuickBooks, Stripe, Salesforce and Snowflake. From there it builds a model of the business’s financial health and lets founders talk to it through Slack. The pitch is simple enough. Ask it to forecast cash flow, look at a hiring plan, or handle other finance tasks, and it should be able to respond with something useful.

The bigger claim is that Ari does not sit around waiting for prompts. It keeps track of recurring revenue, cash flow, churn, profit margins and EBITDA, then flags changes on its own. If churn jumps or available cash looks lighter than expected, it is supposed to dig into the reasons and suggest what to do next. That makes it sound less like a chatbot and more like a tireless, slightly nosy CFO.

Founder and CEO Siqi Chen says the key difference is spreadsheets. LLMs can handle accounting and reporting, he said, but forecasting is where they get stuck because spreadsheet logic was built for human eyes, not model architecture. Ari’s answer is Reambase, a proprietary multidimensional calculation engine that replaces the visual grid with business addresses built from variables like Region, Month and Customer.

That approach, Chen argues, lets the semantic meaning travel with each value instead of getting trapped in a cell like B7 or G12. The result is meant to be an AI agent that can understand the structure of a spreadsheet, handle the formulas underneath, and behave more like a CFO than a text box with opinions.