Usage and Costs

Usage is billed from allocated resources, not from reserved-but-unused plan headroom.

Compute billing

Cost formula

For each compute resource type:

resource quantity x hours x hourly rate

Current compute rates:

Resource	Rate	Monthly equiv
CPU	£0.030/vCPU/hour	£21.90/vCPU
Memory	£0.006/GiB/hour	£4.38/GiB
Storage	£0.000116/GiB/hour	£0.085/GiB

Example calculation

If a cluster is allocated 4 vCPU, 16 GiB memory, and 100 GiB storage:

(4 x 0.030) + (16 x 0.006) + (100 x 0.000116) = £0.2276/hour

Estimated monthly compute (730-hour month):

£0.2276 x 730 = £166.15/month

Observability billing

Each plan includes an observability allowance. Usage within the allowance is free. Only overage is charged.

Overage rates

Resource	Rate
Metrics (active series)	£0.003/series/month
Logs (ingest)	£0.30/GB

How overage is calculated

• Active series: The 95th percentile (P95) of active series over the billing period is used. This smooths out temporary spikes and matches industry-standard billing.
• Log ingest: Total bytes ingested during the billing period, converted to GB.

Overage formula:

max(0, actual usage - included allowance) x unit rate

Example

A Pro plan tenant (50,000 series included, 50 GB logs included) with:

• 60,000 active series (P95)
• 62.5 GB log ingest

Observability charges:

Metrics overage: (60,000 - 50,000) x £0.003 = £30.00
Log overage:     (62.5 - 50) x £0.30        = £3.75

Total monthly bill

plan base fee + compute charges + observability overage - credits

What you see in console

The Billing page shows:

• Current month subtotal (in-progress usage for this period)
• Breakdown by line item/resource type (including observability overage)
• Monthly history once prior billing periods exist

See Invoices and Payments for status details.