ComfyUI Node
LTX-2.3 Fast
A ComfyUI node in Runware/Video/lightricks with 18 inputs and 1 output.
LTX-2.3 Fast
- frameImages
- lora
- video
◄positivePrompt—►
◄width1024►
◄height1024►
◄duration1.00►
◄audio►
◄seed0►
◄fps25►
◄numberResults1►
◄settings.enhancePrompttrue►
◄safetyfalse►
◄safety.checkContentfalse►
◄safety.modenone►
◄ttlfalse►
◄ttl_value60►
◄outputFormatMP4►
◄outputQuality95►
CategoryRunware/Video/lightricks
Inputs (18)
| Name | Type | Default | Description |
|---|---|---|---|
| positivePrompt | STRING | Text prompt describing elements to include in the generated output. | |
| width | INT | 1024128–2048 | Width of the generated media in pixels. |
| height | INT | 1024128–2048 | Height of the generated media in pixels. |
| duration | FLOAT | 1.001–20 | Length of the generated video in seconds. The total number of frames produced is determined by duration multiplied by the model's frame rate (fps). |
| frameImagesopt | IMAGE | — | |
| loraopt | RUNWARE_LORA | — | |
| audioopt | STRING | Audio input (UUID or URL). Enables audio-to-video conditioning. The audio is merged with the generated video and trimmed to fit the video duration. Maximum duration 30 seconds. | |
| seedopt | INT | 00–9223372036854776000 | Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range. |
| fpsopt | INT | 251–120 | Frames per second for video generation. Higher values create smoother motion but require more processing time. |
| numberResultsopt | INT | 11–4 | Number of results to generate. Each result uses a different seed, producing variations of the same parameters. |
| settings.enhancePromptopt | BOOLEAN | true | Enable automatic prompt enhancement for cinematic results. |
| safetyopt | BOOLEAN | false | Enable to set safety. Off uses the model's default. |
| safety.checkContentopt | BOOLEAN | false | Enable or disable content safety checking. |
| safety.modeopt | COMBO | none | Safety checking mode for video generation. |
| ttlopt | BOOLEAN | false | Enable to set ttl. Off uses the model's default. |
| ttl_valueopt | INT | 60 | Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`. |
| outputFormatopt | COMBO | MP4 | File format for the generated video. |
| outputQualityopt | INT | 9520–99 | Compression quality of the output. Higher values preserve quality but increase file size. |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| video | VIDEO | — |