OpenAI Buys Polish Startup Neptune to Improve AI Modeling (1)

OpenAI agreed to buy Neptune, a Polish startup that makes tools for analyzing progress during AI model training, in its first investment in the eastern European country.

The transaction will be in stock, but the developer of ChatGPT declined to disclose specific terms. OpenAI paid less than $400 million for the Warsaw-based company, the technology website Information reported, citing people familiar with the deal.

OpenAI has used Neptune’s tools for more than a year to compare different versions of artificial intelligence models. The company plans to keep Neptune tools for its own use and wind down access to other ...