WAN 2.1 IMAGE to VIDEO with Caption and Postprocessing

Workflow: Image -> Autocaption (Prompt) by Florence -> WAN I2V with Upscale and Frame Interpolation

• Creates Video Clips with up to 480p resoltion (720p with corresponding model)

Wan I2V Version supporting Optimal Steps Scheduler (OSS) added to Experimental Tab.

OSS is a new comfy core node to allow lower no. of steps with a boost in quality. Instead of using 50+ steps you can receive same result with like 24 steps. It requires to reduce the Teacache threshold, therefore it has a bit longer process time, but with more consistent results. (see notes in workflow for more info) updated apr.14th 2025

https://github.com/bebebe666/OptimalSteps

V2.5: Wan 2.1. Image to Video with Lora Support and Skip Layer Guidance (improves motion)

There are 2 version, Standard with Teacache, Florence caption, upscale, frame interp. etc. plus a version with LTX Prompt Enhancer as an additional captioning tool (see notes for more info, requires custom nodes: https://github.com/Lightricks/ComfyUI-LTXVideo).

For Lora use, recommend to switch to own prompt with Lora trigger phrase, complex prompts might confuse some Loras.

V2.0: Wan 2.1. Image to Video with Teacache support for GGUF model, speeds up generation by 30-40%

It will render the first steps with normal speed, remaining steps with higher speed. There is a minor impact on quality with more complex motion. You can bypass the Teacache node with Strg-B

Example clips with workflow in Metadata: https://civitai.com/posts/13777557

Info and help with Teacache: https://civitai.com/models/1309065/wan-21-image-to-video-with-caption-and-postprocessing?dialog=commentThread&commentId=724665

V1.0: WAN 2.1. Image to Video with Florence caption or own prompt plus upscale, frame interpolation and clip extend.

Workflow is setup to use a GGUF model.

When generating a Clip you can chose to apply upscaling and/or frame interpolation. Upscale factor depends on upscale model used (2x or 4x, see "load upscale model" node). Frame Interpolation is set to increase frame rate from 16fps (model standard) to 32fps. Result will be shown in "Video Combine Final" node on the right, while the left node shows the unprocessed clip.

Recommend to "Toggle Link visibility" to hide the cables.

Models can be downloaded here:

Wan 2.1. I2V (480p): https://huggingface.co/city96/Wan2.1-I2V-14B-480P-gguf/tree/main

Clip (fp8): https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/tree/main/split_files/text_encoders

Clip Vision: https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/tree/main/split_files/clip_vision

VAE: https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/tree/main/split_files/vae

Wan 2.1. I2V (720p): https://huggingface.co/city96/Wan2.1-I2V-14B-720P-gguf/tree/main

Wan2.1. Text to Video (works): https://huggingface.co/city96/Wan2.1-T2V-14B-gguf/tree/main

Tips:

• lower framerate in "Video combine Final" node from 30 to 24 to have a slow motion effect

• Try lowering Florence task to "detailed_caption", as I2V seem not to require long prompts

• You can use the Text to Video GGUF Model, it will work as well.

Full Video with Audio example: