What changed
Hark released Handoff squared to all Pro users, updating its cloud computer-use agent for purchasing, booking, applications and account workflows. Hark says the model is 46% faster and the overall product averages twice the speed of the prior version.
Why it matters
A faster browser agent can make delegated consumer workflows practical, but it also carries authority to sign in, submit forms and spend money. Speed does not reduce the need for transaction previews, revocation and recovery.
What to do
Test one reversible task with a low-privilege account, require confirmation before any purchase or submission, and record completion, correction time and unauthorized side effects against a manual baseline.
Caveat
The reported 82% browse score, 93.8% alignment score and speed gains come from Hark's internal harness, whose v1 and v2 conditions differ. There is no independent benchmark, public API or downloadable model.