Noesion Radarnoesion.ai
Release2026-08-05

Hark published its first research preview of "Handoff," a computer-use agent that operates a live browser on a dedicated virtual machine with its own file system and terminal, and can log into a user's connected accounts to complete tasks end to end. Cited use cases include ordering on DoorDash and Uber Eats, checking out on Walmart, Target and Costco, booking tables on OpenTable and Resy, messaging candidates on LinkedIn, and reserving flights on United, American, JetBlue and Delta. Hark reports the top spot on the Online-Mind2Web human evaluation leaderboard and an average margin of 8 points over GPT-5.4 and 2 points over Opus 4.8 across three browser-use benchmarks, with WebTailBench and internal evals run in Hark's own harness. The model was developed via post-training (SFT then RL) over six months, with mid-training underway and pre-training planned later in the year.

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