Alibaba Wan 2.6 Image To Video (Official Edition)

Wan 2.6 is what Alibaba shipped after 2.5, and like 2.5 it never got weights - the numbered series went API-only after the open Wan 2.2, and that's just the business model now. This node is one of the few doors into the 2.6 image-to-video model, and it's basically Wan 2.5's node with a newer engine and one small input change you should know about.

What this node does

BizyTRD_Wan_2_6_Official_I2V_API takes an image first frame and generates a video on Wan 2.6, running on BizyAir's servers. Flip BizyAirPlus ON, upload your still, and the clip streams back into ComfyUI. Cloud execution like every BizyTRD node - no local model, no VRAM bill, and no way to run it any other way.

The inputs that matter

• image - the first frame; output aspect ratio tries to follow it.
• resolution - combo defaults to 480P with the tooltip mentioning a 1080P default; the model auto-scales to the nearest total-pixel bucket, so treat it as a ballpark.
• duration - 5 or 10 seconds.
• prompt_extend - on by default: an LLM rewrites/expands your prompt, big win for short prompts, costs time. Off it if you write your own detailed prompts.
• prompt - optional, up to 1500 characters.
• audio_url - here's the change from 2.5: instead of an AUDIO socket, this node takes a URL string (WAV/mp3, 3–30s, up to 15MB) for custom audio that drives the video and replaces auto-dubbing. Paste a hosted file's URL rather than uploading.
• audio - on by default: auto-generates background music or SFX; flip off for silent. A provided audio_url takes precedence.

Shared BizyAir options: api_config (endpoint/key override) and skip_error (placeholder instead of abort).

Outputs

• video - the finished clip; wire into preview or save.
• request_id - cloud task ID.
• urls - hosted result URLs.

How to install

cd /path/to/ComfyUI/custom_nodes
git clone https://github.com/siliconflow/BizyAirPlus.git
cd BizyAirPlus
python -m pip install -r requirements.txt

Restart ComfyUI (or install "BizyAirPlus" via ComfyUI Manager). Deps: bizyair-cloudberry and bizytrd; no model files. First run: account at bizyair.ai → API key → enter when the ON button prompts (or Settings > BizyAirPlus; key at ~/.BizyAirPlus/apikey.ini).

Where people get burned

The audio_url switch trips people who used the 2.5 node: 2.5 takes an AUDIO socket, 2.6 takes a URL string, so a workflow wired for one won't just drag across. Also, don't expect to compare 2.6 against a local 2.2 checkpoint head-to-head - different pipelines entirely, and 2.6 is a closed API model with its own behavior. And keep prompt_extend in mind as a latency toggle, not a quality guarantee.

Pack note: BizyAir's malware reputation is leftover from a 2025 ComfyUI Manager auto-install bug - legitimate SiliconFlow pack; if you ever remove it, pip uninstall bizyair-cloudberry bizytrd rather than deleting the folder alone.