Sierra closes latest funding round at nearly $16 billion valuation

Watch on YouTube ↗  |  May 04, 2026 at 16:11  |  2:58  |  CNBC
Speakers

Summary

CNBC's Kate Rooney reports that Bret Taylor's AI startup Sierra has raised nearly $1 billion at a $16 billion valuation, up from $10 billion in the fall. Sierra makes AI customer service agents and uses a pay-per-task business model. Taylor also discusses OpenAI, compute costs, and overinvestment in AI.

  • Sierra, led by Bret Taylor, closed a funding round at a nearly $16 billion valuation.
  • The company develops AI customer service agents and charges only when tasks are completed.
  • Taylor compares the new business model to software-as-a-service and commission-based sales.
  • He expects consolidation in the AI market due to overinvestment and too many companies.
  • Taylor is also chairman of OpenAI and uses a constellation of models at Sierra.
  • Compute costs are rising but did not factor into Sierra's fundraising decision.
  • Taylor denies reports of misalignment between OpenAI's CFO and CEO.
Up Next