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Fly.io's Sprites [1] do offer public web access as an option. They also have dynamic pricing.

To a first approximation everything in this space has dynamic pricing. If it's not priced dynamically, you're presumably paying a premium either on a commit or in gym pricing.

I don't know what the right term is, but maybe "deterministic" pricing (this is not the right term, but maybe closer). That is, I'm not going to know how much a sprite cost until I see the bill (or look up the live usage report), whereas if I spin up a Fly Machine, I know exactly how much I'm going to pay per unit of time.

(Both make sense for their respective use cases.)

Ah, that makes sense. Yeah, that's a technical limitation! I'm sure we'll work through it at some point this year, but it's a consequence of the fact that for most people, most of their Sprites are dormant most of the time; it's how you comfortably get to having 20-30 Sprites (making a new one any time you do something new) for every user.

It's a good callout, a genuine difference between Sprites and Fly Machines. Believe it or not, it's intended to make Sprites cheaper than Machines.

I absolutely believe it! And feel the pricing model makes perfect sense for the use case.

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