Takeoff

AI Agents · Enterprise Software

Acquisition

Sierra acquires Takeoff, folds team into new Horizon AI agent platform

A three-person team's leap to near eight-figure revenue in months shows enterprise buyers now pay for outcomes, not model access.

• Sierra, the AI agent company led by former Salesforce CTO Bret Taylor, acquired Takeoff, announced via X posts on July 23, 2026 rather than a formal press release; deal terms were not disclosed.
• Takeoff is a 14-month-old startup with just three people that built a 'long-horizon' agent runtime designed to let AI systems execute complex, multi-step work over hours or days instead of single chat replies.
• Takeoff went from $0 in annual recurring revenue at the start of 2026 to nearly eight figures by July, landing several seven-figure contracts across lending, healthcare, telecom, media and travel.
• The combined teams are building a new platform called Horizon, aimed at agents that run for hours or days rather than the single-turn interactions typical of chat assistants.
• Founder Aakash Thumaty's core thesis, shared in his fundraising memo, is that inference APIs are a commodity and the enterprise AI winners will be companies selling industry-specific solutions priced on outcomes.
• The Information's Stephanie Palazzolo noted the deal pushes Sierra beyond its customer-support roots into longer-duration tasks that could run for hours or days.
• The deal shows enterprise AI competition shifting from model benchmarks to owning outcome-based workflows, with a tiny startup's revenue traction outweighing scale in a rapidly consolidating long-horizon agent market.