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BU Ultrafast Is Live

BU Ultrafast is live on every Browser Use Cloud plan in the US, with no waitlist. Set model to bu-ultrafast.

Agents

  • BU Ultrafast is now available on every Browser Use Cloud plan in the US, including free. Set model to bu-ultrafast on POST /api/v4/runs; it takes no model parameters. Learn more.
  • bu-fast runs the same agent with more reasoning per step.
  • The BU Ultrafast waitlist is closed. No action is needed if you signed up.

Recent Updates

Faster Sessions, BYOK Pricing Fix & Reliability Updates

Session loads are faster and more stable, BYOK cache reads are no longer overcharged, and several reliability fixes landed.

Scheduled V4 Agents, Agency Skill & Model Picker Updates

V4 agents can now be scheduled, a new Agency skill for proactive work, and model picker updates.

Session Sharing, Usage Analytics & X402 Pricing

Sessions get sharing and management upgrades, a redesigned Usage page, and cheaper X402 top-ups.