> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.ltx.io/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.ltx.io/_mcp/server.

## Mask Extraction

* New `/v2/video-alpha-gen` endpoint (async) to separate the foreground of a video from its background. Send a video and get back a grayscale mask (alpha matte) video with the same frames, white for foreground and black for transparent, plus a ProRes 4444 copy of your video with the mask as its alpha channel, ready to composite.

[Submit a mask extraction job](/api-documentation/api-reference/async-video-generation/submit-video-alpha-gen).

## Video Upscale

* New `/v2/video-upscale` endpoint (async) to upscale a video to 1080p, 4K or 8K. The output keeps the input's aspect ratio and audio, and uses its frame rate rounded to a whole number.

[Submit a video upscale job](/api-documentation/api-reference/async-video-generation/submit-video-upscale).