Releases
5 matching — model launches, API releases, product updates, financial events and news.
July 20261
Jul 23, 2026
Sierra acquires Takeoff to build HorizonAnnouncedAcquisition
Sierra announced the acquisition of Takeoff, a three-person long-horizon-agent company approaching an eight-figure annual run rate, with the teams combining to build Horizon.
May 20261
May 4, 2026Sierra raises $950MFunding round
Sierra raised $950 million from new and existing investors led by Tiger Global and GV.
February 20261
Feb 6, 2026Sierra exceeds $150M ARRRevenue disclosure
Sierra reported more than $150 million in annual recurring revenue as it entered its third year.
November 20251
Nov 21, 2025Sierra reaches $100M ARRRevenue disclosure
Sierra announced that it reached $100 million in annual recurring revenue seven quarters after its public launch.
September 20251
Sep 4, 2025Sierra raises $350MFunding round
Sierra raised $350 million in additional capital led by Greenoaks to expand Agent OS and its international business.