BU Ultrafast is live
Browser Use makes BU Ultrafast, its fastest browser agent, available in the US on every Cloud plan, including the free one. In runs from October 16 to 29, the median task took 22 seconds and cost $0.0064, versus 79 seconds and $0.0098 for the default GPT-6 Luna agent.
What the article says
Browser Use announced on October 31, 2026 that BU Ultrafast, its fastest browser agent, is now generally available. It had been behind a waitlist that ended on October 30, and it is now open on every Browser Use Cloud plan in the US, including the free one.
According to the company, median per-task figures are 22 seconds at $0.0064, versus 79 seconds at $0.0098 for the default agent running GPT-6 Luna, which it describes as more than three times faster and cheaper. The measurements cover completed runs from October 16 to 29, 2026. To use it, developers only set the model parameter to bu-ultrafast; bu-fast remains available for more reasoning per step. bu-ultrafast tokens are billed at OpenAI's priority rate, twice the standard rate, except on HIPAA projects.
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