PixVerse V3.5

PixVerse V3.5 is the middle child of the PixVerse text-to-video line in the Runware pack, and for a lot of people it's the one that's good enough. You type a prompt, optionally give it a starting frame, and a few seconds of motion comes back as a native VIDEO. It's the V3.5 node's party trick that keeps it relevant next to the newer versions: a built-in library of effect templates - the viral "skeleton dance," "kiss me AI," "subject 3 fever" moves that flooded short-form video - that you can apply with one dropdown instead of reverse-engineering in the prompt.

PixVerse is a consumer AI video service that got big on exactly these effects, and Runware exposes it per-model as a node. The KB's video framing is worth keeping in mind: closed video models still hold the edge on polish and native audio, and this is you renting that edge by the run instead of buying a subscription.

What you actually set

• positivePrompt - required. Describe the scene and the motion; "slow zoom on a lighthouse at dusk, waves crashing" is the shape of a good one.
• frameImages - IMAGE socket for image-to-video. Feed it a frame you generated and PixVerse animates from there.
• negativePrompt - what to keep out.
• size - resolution presets from 360p to 1080p, in 16:9, 4:3, 1:1, 3:4, 9:16, or "from input" flavors. Default is 720p (16:9).
• duration - 5 or 8 seconds (default is the model default). 8 seconds costs more; 5 is the standard clip.
• providerSettings.pixverse.style - anime, 3d_animation, clay, comic, cyberpunk, or default. One dropdown, instant restyle.
• providerSettings.pixverse.effect - the viral movement templates. This is the reason to pick V3.5 specifically.
• providerSettings.pixverse.motionMode - normal or fast. Fast is snappier, less refined.
• seed and numberResults - reproducibility and up to N takes.

Output: one video socket, type VIDEO.

Install

One-time, pack-wide: ComfyUI Manager → search Runware → install → restart, or

cd ComfyUI/custom_nodes
git clone https://github.com/Runware/ComfyUI-Runware
pip install -r ComfyUI-Runware/requirements.txt

API key into ComfyUI Settings → Runware API key or RUNWARE_API_KEY. Light dependencies (runware-sdk, pillow, soundfile), no weights on disk.

Where people get burned

• safety.mode defaults to none. Content checking is off by default on the PixVerse video nodes; fast and full exist if you want it.
• Effects are the point, and they're gimmicky. The template names are meme-tier on purpose. If you want earnest cinematic motion, set effect to default and lean on the prompt.
• 8-second runs cost more. Duration is a real price lever; watch the title-bar cost before queuing a batch.

The takeaway: V3.5 is the budget-adjacent choice that's surprisingly capable - good enough motion, plus the effects nobody else has. If you want sharper camera work, step up to V4.