Are Builds on Fly free?

[motz]

I can’t find anything about builds in the fly docs. Does that mean that App Builders (via Depot) are free to use?
What about the different builder sizes, do these cost anything? Why would I not choose the biggest one?

[mayailurus]

Hi… Fly.io announced in September that they would start charging for these eventually—but still hasn’t begun to do so yet (as far as I know).

@joshua-fly

For now, remote builds stay free. This change won’t cost you anything.

But, some weeks after the Depot migration is complete and verified, we’ll offer a free allowance of 300 build minutes per month. After 300 minutes, we’ll bill you $0.05 per build minute.

Around that time, we’ll likely stop supporting the standard Fly remote builder.

And then in November…

@allison

Eventually, builder pricing will take into account the size of your builder, but the pricing on this is TBD. We’ll update this thread - and anyone affected by the changes - once we have concrete numbers

You can email billing@fly.io to get official confirmation of such things, in general. The community forum mostly (but not exclusively!) just gets you pointers and guesses from fellow users like myself.

(Unlike the other email addresses, that one doesn’t require an active Support plan.)

@motz

Why would I not choose the biggest one?

Mainly as a courtesy to Depot, which is eating the cost of these currently (I think), …