LTX-2.3 22B
Edits a video you give it
Liveby LTX
Extend video with audio using LTX-2.3
Ask your agent
Say it in your own words. Your agent picks this tool, fills in the details and brings back the answer.
Use LTX-2.3 22B to make this clip look like it was shot at night.
Change the background of this video to a beach.
Reviews
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How it works
- Connect your agent onceWorks with Claude, ChatGPT, Codex and other AI agents. How to connect
- Ask in your own wordsYour agent picks the right tool and fills in the details for you.
- Pay only when it worksEach use comes out of your balance. If it fails, you aren't charged.
For developersSummary, tool id, API call and input schema
Video API by LTX, callable through Superpowers. It costs $0.00173 per megapixel, charged only when the call succeeds. Call it with one API key: POST /v1/run with "tool": "fal.ltx-2.3-22b-extend-video", or over MCP with run_tool.
- Tool id
- Price per call
- $0.00173 / megapixel
Call it
Also over MCP asrun_toolcurl -X POST https://superpowers.tools/v1/run \
-H 'Authorization: Bearer $SP_KEY' \
-d '{"tool":"fal.ltx-2.3-22b-extend-video","input":{"prompt":"","video_url":""},"idempotency_key":"example-request-1"}'Input
39 fields · 2 required{
"type": "object",
"required": [
"prompt",
"video_url"
],
"properties": {
"acceleration": {
"type": "string",
"description": "The acceleration level to use.",
"default": "regular",
"enum": [
"none",
"regular",
"high",
"full"
]
},
"audio_modality_scale": {
"type": "number",
"description": "The modality scale for the audio. Controls the ratio between video and audio modalities.",
"default": 3
},
"fps": {
"type": "number",
"description": "The frames per second of the generated video.",
"default": 24
},
"distill_lora_first_pass_scale": {
"type": "number",
"description": "The scale of the distill LoRA to use for the first pass. Set to 0 to disable.",
"default": 0.2
},
"audio_strength": {
"type": "number",
"description": "Audio conditioning strength. Lower values represent more freedom given to the model to change the audio content.",
"default": 1
},
"enable_safety_checker": {
"type": "boolean",
"description": "Whether to enable the safety checker.",
"default": true
},
"use_multiscale": {
"type": "boolean",
"description": "Whether to use multi-scale generation. If True, the model will generate the video at a smaller scale first, then use the smaller video to guide the generation of a video at or above your requested size. This results in better coherence and details.",
"default": true
},
"camera_lora_scale": {
"type": "number",
"description": "The scale of the camera LoRA to use. This allows you to control the camera movement of the generated video more accurately than just prompting the model to move the camera.",
"default": 1
},
"enable_prompt_expansion": {
"type": "boolean",
"description": "Whether to enable prompt expansion.",
"default": true
},
"end_image_strength": {
"type": "number",
"description": "The strength of the end image to use for the video generation.",
"default": 1
},
"seed": {
"type": "integer",
"description": "The seed for the random number generator."
},
"gradient_estimation_gamma": {
"type": "number",
"description": "The gamma of gradient estimation during denoising. Set to 0 to disable.",
"default": 2
},
"sync_mode": {
"type": "boolean",
"description": "If `True`, the media will be returned as a data URI and the output data won't be available in the request history.",
"default": false
},
"prompt": {
"type": "string",
"description": "The prompt to generate the video from."
},
"video_url": {
"type": "string",
"description": "The URL of the video to extend."
},
"video_size": {
"type": "string",
"description": "The size of the generated video.",
"default": "auto",
"enum": [
"auto",
"square_hd",
"square",
"portrait_4_3",
"portrait_16_9",
"landscape_4_3",
"landscape_16_9"
]
},
"num_context_frames": {
"type": "integer",
"description": "The number of frames to use as context for the extension.",
"default": 25
},
"distill_lora_second_pass_scale": {
"type": "number",
"description": "The scale of the distill LoRA to use for the second and subsequent passes.",
"default": 0.5
},
"scheduler": {
"type": "string",
"description": "The scheduler to use.",
"default": "ltx2",
"enum": [
"ltx2",
"linear_quadratic",
"beta"
]
},
"audio_cfg_scale": {
"type": "number",
"description": "The Classifier-Free Guidance (CFG) scale for the audio. Higher values result in more consistent and focused audio content.",
"default": 7
},
"camera_lora": {
"type": "string",
"description": "The camera LoRA to use. This allows you to control the camera movement of the generated video more accurately than just prompting the model to move the camera.",
"default": "none",
"enum": [
"dolly_in",
"dolly_out",
"dolly_left",
"dolly_right",
"jib_up",
"jib_down",
"static",
"none"
]
},
"video_rescaling_scale": {
"type": "number",
"description": "The rescaling scale for the video. Controls the ratio between classifier-free guidance and spatiotemporal guidance.",
"default": 0.7
},
"video_quality": {
"type": "string",
"description": "The quality of the generated video.",
"default": "high",
"enum": [
"low",
"medium",
"high",
"maximum"
]
},
"end_image_url": {
"type": "string",
"description": "The URL of the image to use as the end of the extended video."
},
"match_input_fps": {
"type": "boolean",
"description": "When true, match the output FPS to the input video's FPS instead of using the default target FPS.",
"default": true
},
"video_output_type": {
"type": "string",
"description": "The output type of the generated video.",
"default": "X264 (.mp4)",
"enum": [
"X264 (.mp4)",
"VP9 (.webm)",
"PRORES4444 (.mov)",
"GIF (.gif)"
]
},
"video_cfg_scale": {
"type": "number",
"description": "The Classifier-Free Guidance (CFG) scale for the video. Higher values result in more consistent and focused video content.",
"default": 3
},
"use_restart_sampling": {
"type": "boolean",
"description": "Whether to use restart sampling. This will inject a small amount of noise during each denoising step, which can help improve the quality of the generated video.",
"default": false
},
"video_write_mode": {
"type": "string",
"description": "The write mode of the generated video.",
"default": "balanced",
"enum": [
"fast",
"balanced",
"small"
]
},
"audio_stg_scale": {
"type": "number",
"description": "The Spatiotemporal Guidance (STG) scale for the audio. Higher values result in more consistent and focused audio content.",
"default": 0
},
"num_inference_steps": {
"type": "integer",
"description": "The number of inference steps to use.",
"default": 40
},
"generate_audio": {
"type": "boolean",
"description": "Whether to generate audio for the video.",
"default": true
},
"negative_prompt": {
"type": "string",
"description": "The negative prompt to generate the video from.",
"default": "news broadcast, 3d animation, computer graphics, pc game, console game, video game, cartoon, childish, watermark, logo, text, on screen text, subtitles, titles, signature, slowmo, static"
},
"video_strength": {
"type": "number",
"description": "Video conditioning strength. Lower values represent more freedom given to the model to change the video content.",
"default": 1
},
"extend_direction": {
"type": "string",
"description": "Direction to extend the video. 'forward' extends from the end of the video, 'backward' extends from the beginning.",
"default": "forward",
"enum": [
"forward",
"backward"
]
},
"num_frames": {
"type": "integer",
"description": "The number of frames to generate.",
"default": 121
},
"audio_rescaling_scale": {
"type": "number",
"description": "The rescaling scale for the audio. Controls the ratio between classifier-free guidance and spatiotemporal guidance.",
"default": 0.7
},
"video_modality_scale": {
"type": "number",
"description": "The modality scale for the video. Controls the ratio between video and audio modalities.",
"default": 3
},
"video_stg_scale": {
"type": "number",
"description": "The Spatiotemporal Guidance (STG) scale for the video. Higher values result in more consistent and focused video content.",
"default": 0
}
}
}