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On October 31, 2026, Browser Use opened its fastest browser agent, BU Ultrafast, from the waitlist to all US Cloud plans, including the free tier. Official data shows that BU Ultrafast has a median task time of 22 seconds and a cost of $0.0064 per run; by comparison, the default agent on GPT-6 Luna takes 79 seconds and costs $0.0098. To use it, simply set model to bu-ultrafast; for more step-by-step reasoning, you can switch to bu-fast from the same agent, which is billed at standard rates. There are currently no further developments.
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Browser Use launches BU Ultrafast browser agent: median task time 22 seconds, cost $0.0064Developments
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Oct 31
Browser UseFirst-party
Browser Use launches BU Ultrafast browser agent: median task time 22 seconds, cost $0.0064
Browser Use has opened its fastest browser agent, BU Ultrafast, from the waitlist to all Cloud plans in the US, including the free tier. Official data shows a median task time of 22 seconds and a cost of $0.0064 per task, compared with 79 seconds and $0.0098 for the default agent on GPT-6 Luna. To use it, simply set model to bu-ultrafast; if you need more step-by-step reasoning, you can switch to bu-fast from the same agent, which is billed at standard rates.