Open models cost nothing to use. What you pay for is the GPU time they run on, metered by usage on an open network of independent operators. Livepeer runs a growing library of 130+ frontier and open models on exactly that basis.
Your gaming PC is idle right now. Livepeer is an open network of independent operators who rent out spare GPU time, so work runs on whichever machine is free instead of inside one company's data centre. The card that renders your games can render somebody else's video.
