MiniMax H3 LongMedia

The low-VRAM attention knob ComfyUI hides from you

Get your soundtrack into H3's latent space, properly

Find out which H3 transformer block ate your VRAM

See exactly what your first denoise step costs in VRAM

A health check for H3's weird two-stream latent

The honest way to do lip-sync in latent space

Where a long H3 run finally becomes video you can watch

Handing H3 the previous clip so the next one matches

The sampler that turns one H3 prompt into a whole long clip

The one node that decides what your H3 video will be

Blend a new video stream into an old clip without touching its audio

The other half of H3's low-VRAM story (the MLP half)

The tiny node that makes H3's two streams one

Grow a clip by opening the next one with the last one's ending

The guard that stops your refine pass from wrecking the seam

Cut your sigma schedule in two so the refine tail doesn't fight the base pass

A deprecated node that still does its job (if you have old graphs)

Swap one half of an H3 clip without regenerating the other

The deprecated video-swap node old graphs still load with

The guider that finally knows what the previous clip looked like

The no-noise pass that still remembers the seed

Splitting H3's joint video+audio latent into two editable streams

Joining H3 continuation segments without a visible seam

Keep the audio, regenerate the picture — H3 streams on separate dials

Turning off pinned memory so the huge H3 model can page itself

Putting ComfyUI's pinned-memory setting back where you found it

The engine that runs every H3 segment in a single sampling lifecycle

Turning frames into an H3 video stream the model can actually eat

Inpainting inside H3's video latent, not on the pixels

The post-run VRAM flush that tells you how much it clawed back

A SAMPLER wrapper that flushes VRAM before you run out, not after

Tell MiniMax H3 how to move the camera without the camera ending up in the shot

Stop hand-chaining 5-second H3 clips

A prompt, duration and seed per clip

Restore long, low-quality video with MiniMax H3 — without VRAM scaling to the runtime