Hark launched its browser agent, Handoff, to wide coverage on August 5. The benchmark numbers are real, the funding is real ($700M Series A, $6B valuation), and the founder Brett Adcock has a track record. If you are researching browser automation tools right now, Hark will come up.
You cannot use it today. As of August 29 Handoff is application-only with no public access, and the commercial launch window is "before end of summer 2026," which is this week. WebRun is available now, without a waitlist or an application.
Hark Handoff
Hark was founded by Brett Adcock and raised $700M in a May 2026 Series A at a $6B valuation. Handoff is their browser automation agent: it takes a natural-language instruction and carries it out on a live website, without needing an API on the target side.
Its headline benchmark is 97.7 on Online-Mind2Web, a set of long-horizon navigation tasks across 136 live websites scored by independent evaluators. That beats the current published field, including GPT-5.4 at 92.8 and Claude Opus 4.8 at 84.1. Published token pricing is $0.18 per million input tokens and $2.37 per million output tokens.
Handoff is application-only and aimed at enterprise customers. No seat pricing or volume tiers have been published.
WebRun
WebRun navigates real websites without needing an API on the target side, and it is available today on self-serve plans you can read before you sign up.
The product adds a template layer on top of natural-language instructions. A template captures a repeating task in a reusable form: data extraction from a specific portal, a form submission flow, a multi-step research sequence. For anything that runs on a schedule, that saves you re-describing the task every time.
Availability
| Hark Handoff | WebRun | |
|---|---|---|
| Access | Application required, waitlist | Open, sign up and start |
| Status | Technical preview | Production |
| Template library | None published | Yes, pre-built automation templates |
| Target customer | Enterprise | SMB-friendly |
| Self-serve | No | Yes |
| Pricing published | Token rates only ($0.18/$2.37 per M tokens) | Seat-based plans |
What the benchmarks say
Two points have gone mostly unmentioned in the coverage, and both cut against the headline.
The second benchmark goes the other way. On WebTailBench v2, which is Hark's own evaluation harness, GPT-5.5 outperforms Handoff at 72.3 against 68.6. BenchLM.ai declined to list Hark's self-reported WebTailBench scores because the harness design has not been independently reconciled.
The other point is what a single number hides. Across 300 tasks, 97.7 works out at roughly seven failures, and at deployment scale the kind of failure matters more than the count. Samelogic's analysis noted that pass and fail rates obscure whether a failure was a planning error, a perception error, a bot-block or an expired session, and those four need different fixes. A good benchmark score is not a guarantee that your own workflow will run.
Pricing
Hark's token pricing is $0.18 per million input tokens and $2.37 per million output tokens. Against GPT-5.5 at $5 and $30, the "under one-tenth" claim holds on tokens.
The Wavect desk review, which is the most detailed third-party analysis published so far, noted that the token price excludes browser instance runtime, retries, CAPTCHA-solving overhead and the cost of human approvals. The real per-task cost of a complex workflow will be higher than the token rate suggests. No enterprise contract pricing, seat pricing or volume tiers have been published.
WebRun publishes seat-based plans you can see before signing up.
What is not yet known about Handoff
Three weeks into the beta there are no independent user reviews in any search index: no Reddit threads, no Product Hunt posts, no Hacker News posts. Either the beta pool is very small or its users are under NDA. For a product that was previewed to every major tech publication, that absence is worth noting.
For irreversible actions, including payments, contract submissions and regulated filings, Wavect assessed Handoff as "conditional at best" and recommended dedicated accounts, spending caps and approval gates before any production use.
Where that leaves you
Handoff has a strong navigation benchmark and low token pricing, and you still cannot sign up for it. WebRun is available today, it has a template library for the workflows you run repeatedly, and you can try it without filling in an application.
You can start at webrun.ai without a waitlist or an application.
