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Ex-Salesforce co-CEO Bret Taylor’s Sierra is the untouched $10 billion AI startup

Sierra co-founder Bret Taylor on AI agents' role in an evolving global landscape

Technology

Ex-Salesforce co-CEO Bret Taylor’s Sierra is the untouched $10 billion AI startup

Bret Taylor, chairman of the board of administrators of OpenAI, attends the yearly Allen and Co. Solar Valley Media and Era Convention on the Solar Valley Hotel in Solar Valley, Idaho, on July 8, 2025.

David A. Grogan | CNBC

Bret Taylor’s synthetic understanding startup Sierra has simply joined an unique membership: The corporate sports activities a untouched $10 billion valuation then elevating $350 million in pristine capital.

Sierra is one in every of only a handful of AI startups, together with OpenAI, Anthropic, xAI, Guard Superintelligence and Considering Machines which can be valued at or above $10 billion.

Traders are pouring cash into this aggressive staff of businesses within the hopes that they’ll sooner or later crash the family markets.

Taylor is the chairman of OpenAI’s board, and prior to now served as co-CEO of Salesforce along Marc Benioff. Taylor co-founded Sierra in 2023. The corporate builds and implements AI brokers for customer support. AI brokers can perform duties autonomously on behalf in their customers.

Stocks of Salesforce fell 5% Thursday then the corporate reported susceptible steering and considerations lingered about how AI is affecting device firms.

Sierra mentioned its brokers are already being worn through “hundreds of millions of people” to backup with duties like refinancing properties, ordering lunch, handing over furnishings, working out insurance coverage deductibles and solving era, amongst alternative issues.

Greenoaks led Sierra’s untouched investment spherical, the corporate mentioned. Its valuation greater than doubled from its most up-to-date elevate in October.

“We’re in this for the long term,” Sierra mentioned in a blog post on Thursday.

The corporate mentioned it is going to importance its pristine investment to put money into its platform and concentrate on home and global enlargement.

Sierra’s investment follows a flurry of alternative main AI raises in Silicon Valley. Previous this pace, Anthropic announced it had closed a $13 billion investment spherical at a $183 billion post-money valuation.

WATCH: Sierra co-founder Bret Taylor on AI brokers’ position in an evolving world ground

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