Bret Taylor(@btaylor):We wrote up how we've AI-pilled Sierra. The centerpiece is an AI agent named Pinecone that the whole company uses for everything from business analysis to writing code. Pinecone now generates 70% of our PRs and automates hundreds of tasks every day to quietly handle work no one explicitly prompted.

Bret Taylor

@btaylor

Co-Founder @SierraPlatform. Board @OpenAI.

Joined July 2007

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Bret Taylor@btaylor

2026.07.10 13:22

We wrote up how we've AI-pilled Sierra. The centerpiece is an AI agent named Pinecone that the whole company uses for everything from business analysis to writing code. Pinecone now generates 70% of our PRs and automates hundreds of tasks every day to quietly handle work no one explicitly prompted.