Sierra raises $950M as the race to own enterprise AI gets serious

image via TechCrunch

May 4, 2026, 4:45 PM

• •Sierra plans to use the funding to establish itself as the leading provider of AI-driven customer experiences.
• •Sierra's platform currently manages billions of customer interactions for Fortune 50 companies.
• •Sierra launched 'Ghostwriter,' an 'agent as a service' tool designed to create and deploy specialized agents.
• •Uber is seeing significant results from its agentic AI tools, with 10% of code generated autonomously by roughly 8,000 engineers and technical workers.

Bret Taylor's AI startup, Sierra, secured a $950 million funding round led by Tiger Global and GV, achieving a post-money valuation exceeding $15 billion. The company aims to become the 'global standard' for AI-powered customer experiences, leveraging its rapid revenue growth and expanding platform. Sierra's growth has been substantial, with its agents handling billions of interactions for major corporations, leading to the launch of 'Ghostwriter,' a tool designed to build other agents. This expansion aligns with Taylor's vision of simplifying enterprise software by eliminating the need for complex system navigation.

Read original article