Vercel makes the viral-bill problem a $20 line item
Flat Rate CDN is on by default for new Pro teams: 1 million requests and 1 TB included, 10 million and 50 TB for $20 a month, spikes absorbed. Five years of screenshots of surprise invoices just became a marketing asset.
Vercel introduced Flat Rate CDN for Pro teams on Tuesday: a fixed monthly fee covering CDN requests, fast data transfer, blob transfer and CDN-generated observability events, with traffic spikes explicitly excluded from the bill. It is on by default for new Pro teams and opt-in for existing ones.
You can now go viral on 𝕏 without the stress of runaway CDN bills.
Crucially, without sacrificing our S-tier network performance.
AI is making devs and startups take off crazy fast. Flat Rate CDN brings you both scale and peace of mind.
The tiers: 1 million requests and 1 TB of transfer come with Pro. $20 a month buys 10 million requests and 50 TB. $100 buys 50 million, $300 buys 150 million, both at 50 TB.
Vercel says it strips spikes out when measuring usage against capacity and rightsizes the tier monthly on sustained usage, with no caps and no throttling during a surge. Its example is a team whose normal profile fit the $20 tier and then had a viral launch: "If the team had been on usage-based pricing, their CDN bill would have reached tens of thousands of dollars. On Flat Rate CDN, it stayed at $20 for the month."
What it answers
Vercel names the problem in its own words: "we've seen numerous stories from Pro customers about unexpected bills, many of which famously blew up on X." One beta customer running hundreds of client sites called CDN costs "by far our largest line item, and the hardest to forecast." Another said the change made them "more willing to adopt caching-oriented approaches" in Next.js, because cache traffic no longer had a price. A third mentioned AI crawler traffic as a reason they used to watch bot activity.
That last one is the quiet part. Bot and crawler traffic is the spike nobody launched. A flat rate that ignores it means Vercel is absorbing the cost of every LLM company's scraper on its customers' behalf, which is a strange thing for a company to volunteer for and a smart one.
Our read
This is the right product and a defensive one. Usage-based CDN pricing was correct in theory and toxic in practice: the failure (a surprise invoice) was rare, but every instance became a screenshot, and a screenshot outlives a thousand normal months. Vercel's post more or less admits this. Capping the downside at $20 for the archetypal customer turns the most-shared complaint about the platform into a reason to stay.
Vercel is trading margin for retention, and we doubt the margin was ever the point. The customers who generated five-figure invoices were the ones most likely to leave for Cloudflare, whose free-egress pricing was the alternative in every one of those threads. Flat Rate CDN is priced to be indistinguishable from "free egress" for anyone under 50 TB, which on Pro is nearly everyone.
What could still bite? The word "sustained." Rightsizing is Vercel's call, and a team pushed into the $300 tier by traffic it considers a spike will post that screenshot too. We'd expect no such dispute in the first quarter, and we'd expect Vercel to extend spike absorption to compute (function invocations and duration) within twelve months, because that is where the next screenshot comes from.