They're not free to run, Kimi K3 needs to be run on the cloud, and the quantised versions aren't as capable. Unless you happen to have 3 - 5 TB of VRAM and an 8-node cluster of 8× NVIDIA H100s to run the full fat version. Plus the weights are not yet available to download in any case.

Because you're paying for tokens. Especially output tokens.

Because that's the only argument left after Kimi beats Fabel in results, price and autonomy.