Hark Handoff: The $700M Browser Agent That Predicts Clicks, Not Words
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs. Instead of predicting the next word like a standard LLM, Handoff predicts the next graphical interface a...
Published byEdited with DeepSeek-V4-FlashImages generated with GPT Image 1.5
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs.
Instead of predicting the next word like a standard LLM, Handoff predicts the next graphical interface action — a click, scroll, or keyboard input — and runs each task inside its own virtual computer with a browser, f...
What is Hark Handoff, the browser-use agent launched by Hark (the startup that raised $700 million in Series A in May), including how it navAI-generated editorial illustration of Hark Handoff's autonomous browser interface.
AI Prompt
Create a landscape editorial hero image for this Studio Global article: What is Hark Handoff, the browser-use agent launched by Hark (the startup that raised $700 million in Series A in May), including how it nav. Article summary: ## Hark Handoff Overview. Topic tags: general, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers, clickbait thumbnails, icons, and tiny thumbnail layouts. Make it useful as an illustrative visual, not as factual evidence.
openai.com
Hark Handoff is a browser-use AI agent from the startup Hark, founded by serial entrepreneur Brett Adcock (who also leads Figure AI). Launched on August 5, 2026, and backed by a $700 million Series A round at a $6 billion valuation in May 2026, Handoff is designed to automate multi-step web tasks that typically require a human to navigate, click, and type . It is currently available as a with a public launch targeted for .
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What is the short answer to "Hark Handoff: The $700M Browser Agent That Predicts Clicks, Not Words"?
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs.
What are the key points to validate first?
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs. Instead of predicting the next word like a standard LLM, Handoff predicts the next graphical interface action — a click, scroll, or keyboard input — and runs each task inside its own virtual computer with a browser, f...
Hark Handoff: The $700M Browser Agent That Predicts Clicks, Not Words
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs. Instead of predicting the next word like a standard LLM, Handoff predicts the next graphical interface a...
Published byEdited with DeepSeek-V4-FlashImages generated with GPT Image 1.5
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs.
Instead of predicting the next word like a standard LLM, Handoff predicts the next graphical interface action — a click, scroll, or keyboard input — and runs each task inside its own virtual computer with a browser, f...
What is Hark Handoff, the browser-use agent launched by Hark (the startup that raised $700 million in Series A in May), including how it navAI-generated editorial illustration of Hark Handoff's autonomous browser interface.
AI Prompt
Create a landscape editorial hero image for this Studio Global article: What is Hark Handoff, the browser-use agent launched by Hark (the startup that raised $700 million in Series A in May), including how it nav. Article summary: ## Hark Handoff Overview. Topic tags: general, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers, clickbait thumbnails, icons, and tiny thumbnail layouts. Make it useful as an illustrative visual, not as factual evidence.
openai.com
Hark Handoff is a browser-use AI agent from the startup Hark, founded by serial entrepreneur Brett Adcock (who also leads Figure AI). Launched on August 5, 2026, and backed by a $700 million Series A round at a $6 billion valuation in May 2026, Handoff is designed to automate multi-step web tasks that typically require a human to navigate, click, and type . It is currently available as a with a public launch targeted for .
Studio Global AI
Continue your research
This page includes a source-backed answer you can continue inside Studio Global.
What is the short answer to "Hark Handoff: The $700M Browser Agent That Predicts Clicks, Not Words"?
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs.
What are the key points to validate first?
Hark Handoff, launched August 5, 2026, by Brett Adcock's Hark (which raised $700M Series A in May), is a browser use agent that navigates websites without official APIs — it scored 97.7 on the OM2W benchmark (vs. Instead of predicting the next word like a standard LLM, Handoff predicts the next graphical interface action — a click, scroll, or keyboard input — and runs each task inside its own virtual computer with a browser, f...
Handoff does not rely on official APIs. For every task, it spins up a dedicated virtual computer — complete with its own browser, file system, and terminal — and interacts with websites the same way a human would . It interprets page structure and visual cues to decide where to click, what to type, and when to scroll. This allows it to operate on sites that offer no public automation endpoints, including Target, Walmart, OpenTable, DoorDash, United, Delta, and LinkedIn.
What tasks can Handoff automate?
According to Hark, Handoff handles a wide range of multi-step online workflows :
Ordering food (e.g., DoorDash)
Booking travel (e.g., United, Delta flights)
Shopping (e.g., Target, Walmart)
Restaurant reservations (e.g., OpenTable)
Messaging and recruiting (e.g., LinkedIn)
Research, filing returns, and other form-heavy tasks
Architecture: predicting the next action, not the next token
Hark deliberately pivoted away from the standard LLM paradigm. Instead of predicting the next word in a text sequence, Handoff's model is architected to predict the next graphical user interface action — a click, a scroll, or a keyboard input at a specific screen location . The current release uses a post-trained model (fine-tuned on an existing base), with plans to transition to pre-training from scratch later in 2026 . Hark says this approach allows it to iterate more quickly on data pipelines and training methods before committing to a full pre-training run .
Benchmark performance: 97.7 on OM2W
Hark claims Handoff achieved the top score to date on the Online-Mind2Web (OM2W) benchmark, a human-evaluated industry standard for web-browsing AI performance . The reported scores are:
Hark Handoff: 97.7
GPT-5.5: 92.8
Opus 4.8: 84.1
Gemini 2.5 Pro: 69.0
Pricing is listed at $0.18 per million input tokens and $2.37 per million output tokens — less than one-tenth the cost of GPT-5.5 ($5 input / $30 output) . Hark claims Handoff is both faster and dramatically cheaper than frontier models from OpenAI, Anthropic, and Google for web-use tasks . These are company claims on a third-party benchmark; independent verification of real-world task completion rates and cost comparisons is not yet available.
Current status
As of August 2026, Handoff is in a closed research preview phase. Users can sign up for a waitlist at Hark's website. A full public release is expected by end of summer 2026. The tech stack is still evolving: the model is post-trained for now, with pre-training planned before year-end .
stockpil.com
Hark launches Handoff, a browser-use AI agent that claims to outpace GPT-5.5 and Opus 4.8
Handoff does not rely on official APIs. For every task, it spins up a dedicated virtual computer — complete with its own browser, file system, and terminal — and interacts with websites the same way a human would . It interprets page structure and visual cues to decide where to click, what to type, and when to scroll. This allows it to operate on sites that offer no public automation endpoints, including Target, Walmart, OpenTable, DoorDash, United, Delta, and LinkedIn.
What tasks can Handoff automate?
According to Hark, Handoff handles a wide range of multi-step online workflows :
Ordering food (e.g., DoorDash)
Booking travel (e.g., United, Delta flights)
Shopping (e.g., Target, Walmart)
Restaurant reservations (e.g., OpenTable)
Messaging and recruiting (e.g., LinkedIn)
Research, filing returns, and other form-heavy tasks
Architecture: predicting the next action, not the next token
Hark deliberately pivoted away from the standard LLM paradigm. Instead of predicting the next word in a text sequence, Handoff's model is architected to predict the next graphical user interface action — a click, a scroll, or a keyboard input at a specific screen location . The current release uses a post-trained model (fine-tuned on an existing base), with plans to transition to pre-training from scratch later in 2026 . Hark says this approach allows it to iterate more quickly on data pipelines and training methods before committing to a full pre-training run .
Benchmark performance: 97.7 on OM2W
Hark claims Handoff achieved the top score to date on the Online-Mind2Web (OM2W) benchmark, a human-evaluated industry standard for web-browsing AI performance . The reported scores are:
Hark Handoff: 97.7
GPT-5.5: 92.8
Opus 4.8: 84.1
Gemini 2.5 Pro: 69.0
Pricing is listed at $0.18 per million input tokens and $2.37 per million output tokens — less than one-tenth the cost of GPT-5.5 ($5 input / $30 output) . Hark claims Handoff is both faster and dramatically cheaper than frontier models from OpenAI, Anthropic, and Google for web-use tasks . These are company claims on a third-party benchmark; independent verification of real-world task completion rates and cost comparisons is not yet available.
Current status
As of August 2026, Handoff is in a closed research preview phase. Users can sign up for a waitlist at Hark's website. A full public release is expected by end of summer 2026. The tech stack is still evolving: the model is post-trained for now, with pre-training planned before year-end .
stockpil.com
Hark launches Handoff, a browser-use AI agent that claims to outpace GPT-5.5 and Opus 4.8
