LTX Studio

LTX Studio (/media/ltx) by Lightricks is an end-to-end AI video production platform. Powered by the open-source LTX-2 model family, it generates text-to-video, image-to-video, and audio-to-video clips.

Where to configure

Configure your LTX Studio API key at Settings → Media. Postmill stores the key encrypted at rest; there is no environment-variable fallback.

See Settings for provider setup and the media capability matrix.

Tabs / operations

Tab	Operation	Key fields	Produces
Text → Video	video	Prompt, model, resolution, duration, FPS, camera motion, generate audio	An LTX-2 video clip, optionally with generated audio
Image → Video	video	Source image, prompt, model, resolution, duration, FPS, camera motion, optional last frame, generate audio	An LTX-2 video clip animated from the image
Audio → Video	video	Audio track, optional reference image, optional prompt, model, resolution, duration	A video clip synchronized to the audio track (Pro models only)

Available models are LTX-2.3 Pro/Fast and LTX-2 Pro/Fast. Pro models are required for audio-to-video.

Generation flow

All LTX jobs are async: POST /v2/<op> returns an id, then Postmill polls GET /v2/<op>/{id} until status: completed. The job appears in the Render Queue and, when ready, the video is saved to /files. From there you can open it in the Designer or post directly. See Media Studios for the shared flow.

Caveats

• Video-only: this provider does not generate still images or audio-only output.
• No webhook: LTX relies on the shared media-jobs poll cron (like Runway and Wan), so queue updates happen on the polling interval.
• Namespaced job ids: job ids are stored as <op>:<id> (text-to-video, image-to-video, or audio-to-video) so the poller can hit the correct status endpoint.
• Operation routing: the backend chooses the submit endpoint by the media inputs present — audio_uri → audio-to-video, image_uri → image-to-video, otherwise text-to-video.
• Resolution strings: resolution is sent as a native WxH string (e.g. 1920x1080), not as named presets.

Related docs

• Media Studios — the shared render-queue/hand-off flow used by other studios.
• Designer — the target of every "Edit in Designer" hand-off.
• Settings — configuring the LTX Studio media provider.

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Verified against v1.0.0