wan / v3.0 / image-to-video

Wan is the family that put open video on the map - Wan 2.1/2.2 are the base nearly every 2026 open video model is built on - and then Alibaba took the numbered series behind an API. That's the situation this node lives in: wan v3.0 is the closed, cloud-served generation, and Civitai resells it through this pack. The node itself is a quiet fan of the prompt: enable_prompt_expansion defaults to on, which per the tooltip means Alibaba's prompt rewriting runs before generation. Turn it off and you save 20–60 seconds of latency but lose quality - unless you follow Alibaba's prompting guide and write the expanded prompt yourself.

Part of civitai-comfy-nodes, Civitai's official ~160-node pack generated from its Orchestration API spec. Cloud job: submit a videoGen tagged wan / v3.0 / image-to-video, long-poll, get a native VIDEO tensor. Billed in Buzz, nothing local.

Inputs that matter

• prompt (required) and cfg_scale (required, default 4, range 0–100) - unusual to have cfg as a required field; it's the prompt-following dial, and Wan's family is known for respecting it.
• source_image (IMAGE socket) - the start frame.
• start_image / end_image - the one-two for loops and transitions; end_image "constrains the last frame."
• frame_rate (24), duration (1–30s, default 5), seed, steps (10–50, default 20).
• resolution - 480p, 720p, or 1080p (default).
• negative_prompt - supported here, unlike some of the pack's simpler engines.
• loras - CIVITAI_LORAS socket for a LoRA stack.
• enable_prompt_expansion (on) - described above; the latency-vs-quality lever.
• use_prime - run on wan3.0-video-prime: same output quality, lower latency, higher price (that's the author's own billing note).

Outputs: video (VIDEO), draft_cache_audio (AUDIO), draft_cache_video (VIDEO), workflow_id and raw_json (STRING).

Install and auth

Standard for the pack - official, Comfy Registry:

# ComfyUI Manager: search "Civitai Comfy Nodes"
cd ComfyUI/custom_nodes
git clone https://github.com/civitai/civitai-comfy-nodes.git
pip install -r civitai-comfy-nodes/requirements.txt

Restart, authenticate via a Civitai Auth node, CIVITAI_API_TOKEN, or sidebar OAuth.

Common issues

Turning off prompt expansion without compensating is the classic footgun. The 20–60s latency saving sounds great until your output quality drops; if you disable it, write the verbose, detailed prompt yourself. use_prime is a price trade, not a quality trade - the tooltip is explicit: same quality, lower latency, higher price. Fine for deadline work, dumb as a default. 1080p default means every job bills at the top tier - drop to 720p for drafts. cfg_scale is required and matters - Wan's adherence responds strongly to it; if the video ignores your prompt, raise it before rewriting the text. Everything leaves your machine, and the pack is early preview - behavior can change without notice.