Galileo cofounders Yash Sheth, Vikram Chatterji and Atindriyo Sanyal (left to right).

Thanks to the popularity of ChatPGT, companies everywhere are injecting generative AI into their products. But Vikram Chatterji thinks there’s one big thing stopping businesses from fully embracing AI, and deploying tools in full-scale production: Companies don’t really know how well the tools are going to work once they’re released.

“If you don't solve for this, you’re stuck in almost-production land,” said Chatterji, CEO of Galileo, a startup focused on evaluating AI models.

Chatterji wants his company to be the one to solve it. Galileo works with customers including Hewlett Packard, Comcast and Twilio to test their AI tools, making sure they are not hallucinating — AI-speak for just making up responses — or giving out private data. On Tuesday, the company told Forbes it has raised a $45 million Series B funding round, bringing its total investment to $68 million since it was founded three years ago.

The startup has four products: Fine Tune, which helps corporate customers to train existing models to fit their needs, like incorporating proprietary data; Evaluate, which lets companies quickly decide if a model is ready to........

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