infosave

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LTX-2.5-cmf

like 2

Thanks — implemented it. Shipped in 0.5.90, and 0.5.91 makes it cheap: cortiq ltx-video --lora … --ref ….

Your example 03 renders correctly on an M4 through the CMF engine, no ComfyUI and no torch: 480 branches of rank 128 bind, three references add 1152 tokens beside 384 of clip at frames −3, −2, −1, and all three slots land.

One finding worth passing on: the cost is placement, not flops. The branch is only 4% more multiply-adds, but where it runs decides everything — 182.7 s a step as scalar loops, 39.7 through a device probe, 22.2 pinned to the host, and 10.1 fused into the base GEMM's own Metal submission, against 8.6 with no adapter at all. In 0.5.91 the branch reads the activation that GEMM already uploaded and accumulates into the output it already wrote, so an adapter costs no transfer: 1.17× a step, not 2.6×.

Any LTX-2.5 adapter should load — --lora file.safetensors --lora-strength 0.8. If one refuses, tell me: it refuses loudly rather than rendering something plausible.

you work so fast

so this allows for run time integration of any lora for ltx?

can we do same with mini max?