OpenAI acquires Neptune, a startup providing AI model training tools. Deal value undisclosed, but reported to be under $400 million in stock. OpenAI, led by Sam Altman, is already a Neptune customer with clients like Samsung and Roche. Neptune spun off from Deepsense in 2018, securing over $18 million in funding.

OpenAI reaches $500 billion valuation, with plans for a potential IPO valued up to $1 trillion. CFO Sarah Friar states listing not in near-term plans. OpenAI invests in Thrive Holdings to integrate AI into industries like accounting and IT services. Potential IPO filing in second half of 2026.

Read more at Yahoo Finance: OpenAI agrees to acquire AI startup Neptune to boost model training capabilities