ComfyUI Node
arkennemasis fal · MiniMax H3 Max Lip Sync · $0.05-0.32/s
H3 Max Lip Sync generates a video from an image and supplied audio, synchronizing mouth movements to the soundtrack. It supports optional transcription guidance and output resolutions from 480p to 2K. Pricing (from fal, 2026-09-29): Billing is calculated per second of generated video. Video costs $0.05 per second at 480p, $0.08 per second at 768p, $0.16 per second at 1080p, and $0.32 per second at 2K. A 1.2x multiplier is added to videos over 15 seconds. A 5-second video at 768p costs $0.40. A 30-second video at 768p costs $2.88. Model page: https://fal.ai/models/minimax/h3-max/lip-sync/image-to-video Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/minimax_h3-max_lip-sync_image-to-video/.
arkennemasis fal · MiniMax H3 Max Lip Sync · $0.05-0.32/s
- image
- audio
- video
- video_path
- timings
- duration
- seed
- info
◄resolution768P►
◄enable_transcriptionfalse►
◄seed-1►
◄enable_safety_checkertrue►
◄max_cost_usd20.0►
◄reuse_identical_runtrue►
◄extra_json►
◄max_concurrent1►
Categoryarkennemasis/fal/Lip Sync/MiniMax
Inputs (10)
| Name | Type | Default | Description |
|---|---|---|---|
| image | IMAGE | Image to animate. The aspect ratio must be between 0.4 and 2.5. | |
| audio | AUDIO | Audio to synchronize the mouth movements to, at least 5 seconds long. Supports up to 15 minutes. The output video matches the supplied audio duration. | |
| resolution | COMBO | 768P | Output resolution. Uses the supported aspect ratio nearest the image. |
| enable_transcription | BOOLEAN | false | Transcribe the supplied audio to guide lip synchronization. When disabled, synchronize to the audio without a transcript. |
| seed | INT | -1-1–2147483647 | Random seed; selected randomly if omitted. -1 leaves it to the model. |
| enable_safety_checker | BOOLEAN | true | Enable content safety checks. |
| max_cost_usdopt | FLOAT | 20.00–100000 | Safety cap. If the estimated cost of this run is above this many US dollars the node stops BEFORE sending anything to fal. 0 = no cap. |
| reuse_identical_runopt | BOOLEAN | true | If these exact inputs (the settings AND the same pictures/clips/audio) were already paid for and the files are still in output/fal, return them instead of paying again - also after a ComfyUI restart. Turn off for a fresh take with the same settings. |
| extra_jsonopt | STRING | Advanced: a JSON object merged into the request last, for any fal field this node has no box for. Example: {"seed": 7}. Leave empty normally. | |
| max_concurrentopt | INT | 11–32 | How many paid fal calls may run at the same time in one run, across every fal node. 1 (default) = one after another. This node starts its paid part only while fewer than this many fal calls are running. Once any fal node fails, the ones still waiting are not started, so nothing more is billed. |
Outputs (6)
| Name | Type | Description |
|---|---|---|
| video | VIDEO | — |
| video_path | STRING | — |
| timings | STRING | — |
| duration | FLOAT | — |
| seed | INT | — |
| info | STRING | JSON: request id, cost estimate, saved files and fal's full answer. |