Open SourceFree weights, paid hosted API
FLUX pricing in 2026
FLUX is open source. Free to run, source available, bring your own keys or self-host. Here is the breakdown of how you pay, plus cheaper alternatives if it is not the right fit.
How you pay
Free tierFree to run: self-host or bring your own API key.
Paid plansPaid plans: Free weights, paid hosted API.
Usage / APIUsage cost is whatever your own model keys or hosting cost.
Open sourceSource-available: self-host to control cost.
Pricing summary: Free weights, paid hosted API. Always confirm current plans on the official site.
Frequently asked questions
How much does FLUX cost?
FLUX is open source: Free weights, paid hosted API.
Is FLUX free?
Yes, FLUX has a free path. Free to run: self-host or bring your own API key.