Your QA Team Is Spending 40+ Hours a Week Clicking Through Flows That a Computer Use Agent Can Run in Minutes

How Coasty's Computer Use Agent Handles Browser Testing

Coasty is a computer use agent, meaning it actually sees and interacts with your browser the same way a human tester would, but without the fatigue, the missed clicks, or the 'I thought someone else checked that' moments. You describe a user flow in plain language. Coasty opens a real browser, navigates your app, fills forms, clicks buttons, checks outputs, and flags anything that breaks. It runs 30+ flows per session without slowing down or skipping steps because it's 4pm on a Friday. Because Coasty uses computer use to interact with the actual rendered interface, it catches the bugs that script-based tools miss entirely. Selenium and Playwright test browser engines and DOM elements. They break the moment your frontend team renames a class or restructures a component. Coasty doesn't care about class names. It sees the page the way a user sees it, which means it tests what actually matters: does the thing work? Coasty scored 82% on OSWorld, the industry's hardest benchmark for real-world computer use tasks. That's not a lab result. That's a computer use agent that can handle the messy, dynamic, unpredictable reality of modern web apps.

Why This Beats Everything Else

• ●No script maintenance. Traditional browser automation like Selenium breaks constantly when UIs change. Coasty's computer use approach reads the visual interface, so a redesign doesn't mean rewriting 200 test scripts.
• ●Runs 30+ flows per session without human supervision. One QA engineer manually testing that many flows takes a full day. Coasty does it before your standup.
• ●Catches what scripts can't. Visual regressions, unexpected modal popups, broken redirect chains, and UI glitches that only appear in a real rendered browser are invisible to DOM-based tools. Coasty sees them all.
• ●Costs a fraction of a QA hire. At $63+ per hour for a QA engineer, even a modest 10-hour-per-week testing load runs over $32,000 a year. Coasty runs continuously for a fraction of that, with no PTO, no context switching, and no missed edge cases.

Real Results When You Automate Browser Testing

Teams that move from manual browser testing to a computer use agent approach see the impact immediately. Regression cycles that used to block releases for two to three days get compressed to under an hour. Developers stop getting pulled into QA triage meetings because the computer use agent surfaces specific, reproducible failures with context, not vague 'it broke' reports. One real pattern we see: companies running Playwright or Cypress for unit-level browser checks still have massive blind spots in their end-to-end user flows, especially across authenticated states, multi-step forms, and third-party integrations. Those are exactly the flows Coasty's computer use agent handles without any scripting setup. AI testing tools have shown 80% faster test creation and 90% reduction in bug reporting time compared to manual processes. When you combine that with Coasty running 30+ flows per session on a computer use foundation that actually understands what it's looking at, you stop playing whack-a-mole with production bugs and start shipping with real confidence. The teams that feel this fastest are small engineering orgs, two to eight engineers, who couldn't justify a dedicated QA hire but were quietly bleeding hours every sprint to manual regression testing. That's now a solved problem.