PromptLayer Price History

CostBench has captured 2 dated snapshots of PromptLayer's pricing page over the period it has been tracked, and 3 differ from the snapshot before it — listed below with dates. Those differences include plan renames and lineup restructures as well as genuine repricing, so read them as observations rather than as a price-change count.

The most recent snapshot that differs from the one before it is dated 2026-05-22: Highest tier increased from $299 to $500/month. That is an observed difference between two captures of the pricing page, which is not the same as a confirmed price change.

CostBench re-reads PromptLayer's official pricing page on a rolling oldest-first schedule and stores a dated snapshot each time. Every timeline entry above traces to one of those snapshots — nothing is estimated. What we do not do is publish a price-trend figure: comparing snapshots across a plan lineup that gets renamed and restructured produces mostly false positives, so we show the dated observations and state their limits instead. See our methodology for the full reasoning.

Yes — enter your email in the Pricing Alerts box on this page. CostBench emails you when a verified pricing change lands for PromptLayer. No account required.