billflare.

Source-linked reports: Amounts and outcomes come from the original reports and linked replies.

Othercolab061215-cache-reserve-minimum-bill

colab061215: a $4.88 minimum bill for a few cents of Cache Reserve and R2 usage.

Community user colab061215 says a $4.88 invoice appeared although the account did not knowingly use paid services; actual Cache Reserve and R2 metered usage was under $0.05, but the system generated a $4.88 minimum bill. The author checked billing usage and settings, disabled anything that might charge, and submitted billing ticket 01849980 in the Refunds area.

What happened

Reported cause
Unknown
Incident date
Date not recorded
First reported
2025-11-24
Billing outcome
Request submittedAuthor-reported
Case progress
Not established
Public Cloudflare reply
Not linked

Latest reported outcome

The author asks for a refund through ticket 01849980; no outcome is reported.

View this update in the timeline

Original sources

Each entry links to the report or reply it describes.

Case timeline

  1. Author disputes a $4.88 minimum bill

    Open original source

    The author says metered usage was under $0.05 but a $4.88 minimum bill was generated, and opens ticket 01849980.

Durable Objects

Lion Brain: a Durable Object alarm loop from an AI-coding bug wrote about 250 million rows, roughly $210.

Replying in another user's Community thread, bennygoldstein says a bug written by an AI coding tool made a Durable Object alarm in their Lion Brain app re-index the same data every few seconds on October 10 and 11, 2026, writing about 250 million rows and costing roughly $210 in overage on Workers Paid. He says he only found out from the budget alert email, which never pauses anything, and that he opened a billing case asking for a one-time courtesy credit and a real hard spending cap.

Author experienceWorkers +6

Cloudflare free plan from scratch: which services bill on overage, and what to set up first

李天才 (@Lniosytest) re-walks a popular Cloudflare beginner tutorial (domains, email routing, R2, Workers AI) against the October 2026 docs, prompted by the $10,811 Durable Object alarm bill, and adds a table of what happens on overage plus a pre-flight list for avoiding a runaway bill.

Community resourceWorkers +8

Cloudflare Medivh: a self-hosted near-real-time bill estimator

An open-source, self-hosted monitor that adds today’s estimated usage cost to Cloudflare’s daily-updated billable usage, sends summaries, and calls a webhook when the current cycle crosses a budget.