Settings → Usage

The Usage section shows your AI Credit Units (ACUs) and your current consumption against plan limits.

To open it, click your avatar in the top-right, choose Settings, then Usage in the left side-nav.

Settings → Usage, ACU balance and quotas

AI Credit Units (ACUs)

ACUs power the AI Engineer features, multi-step automation jobs, deeper code generation, longer context windows. They don't apply to the free AI Chat assistant.

Two pools:

This month

Your monthly allowance. Refills at the start of every billing cycle.

  • {used} / {total} ACU: current consumption.
  • Resets on {date}: next refill date.
  • Progress bar shows percent consumed.

Unused monthly ACUs do not carry over. If you don't use them this cycle, they're gone.

Extra credits, never expire

A separate balance you've topped up with one-time purchases.

  • {amount} ACU available: total extra credits.
  • "Never expire" badge.
  • "No top-ups purchased yet" if you haven't bought any.

Extra credits are consumed only after the monthly allowance is exhausted, so a casual user with a small monthly allowance + a stash of extras can pace themselves without surprises.

A + Buy more ACUs button (top right of the ACU card) opens a checkout dialog with packs of ACUs (typical packs: 1k, 5k, 10k, 50k).

How AI Engineer jobs consume ACUs

When you run an AI Engineer job:

  1. The job estimates how many ACUs it will need and shows you the estimate before running.
  2. On approval, ACUs are drained from This month first.
  3. If This month is depleted mid-job, the remaining cost comes from Extra credits.
  4. If neither pool covers the cost, the job is blocked with a "Plan limit reached" message.

Plan usage

Below the ACU card, a Usage section shows your consumption against plan-imposed quotas. Three bars:

  • Orchestrators: N / M used.
  • Devices: N / M used.
  • Private projects: N / M used.

A bar turns red when you've reached or exceeded the limit. If you exceed (typically because of a recent downgrade), existing items continue working but you can't create new ones until you're back under the limit.

A small refresh icon at the top-right of the Usage card forces a recount.

What the numbers mean

LimitCounts
OrchestratorsThe number of orchestrator entries in your workspace (Active + Inactive).
DevicesThe number of vPLC entries across all your orchestrators.
Private projectsProjects marked Private. Public projects don't count.

Increasing limits

The fastest way to lift a limit is upgrading the plan.

  • For your personal workspace, upgrade your personal plan in Settings → Billing or via Pricing.
  • For an organization workspace, the organization needs its own plan; upgrade from the org's Billing tab.

Where to next