Hark, an AI startup founded by Brett Adcock, announced Handoff, a computer use agent designed to autonomously navigate the open web for tasks like ordering food or booking flights. Hark claims Handoff achieved a top score of 97.7 on the Online-Mind2Web benchmark, surpassing OpenAI's GPT 5.4, Anthropic's Claude Opus 4.8, and Google's Gemini 2.5 Pro. The company also states that Handoff operates at a significantly lower token price and faster latency compared to competitors.Handoff accomplishes tasks by spinning up a dedicated virtual computer with its own browser and file system, where users can connect existing accounts for seamless interaction. Hark's research highlights that despite extensive browser use, few websites possess publicly accessible APIs, making autonomous agents challenging to implement. However, questions remain regarding Hark's benchmark comparisons, which notably exclude the latest frontier models like OpenAI's GPT-5.6 and Anthropic's Opus 5.The absence of these newer models from Hark's comparisons, particularly given their recent advancements in computer use, raises concerns about the validity of Handoff's "top-ever" claim. Independent verification of Hark's latency measurements for competing models is also lacking, as these were conducted in Hark's own testing environment. While Hark's pricing advantage appears to be substantial, its performance against current generation models remains unconfirmed.Hark acknowledges that Handoff is currently in post-training, with pre-training planned for later this year, but has not yet specified the base model or training data used. Security and privacy of data on the virtual computers are also critical considerations for enterprise users, with more details promised upon market release. Brett Adcock, a serial entrepreneur, founded Hark as his fourth company, having previously co-founded Vettery, Archer Aviation, and Figure AI.Hark secured a significant Series A funding round of $700 million at a $6 billion valuation, with Adcock personally contributing $100 million. Adcock continues to lead both Figure and Hark simultaneously, with Hark's models being trained on Figure robots. Adcock's promotional style has previously drawn skepticism, particularly regarding his grand claims for Figure AI's partnerships.Despite past controversies, the performance and pricing of Handoff, if independently validated against the latest models, could be highly disruptive in the AI agent market. The true competitive standing of Handoff will become clearer as it faces scrutiny against currently leading systems.