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LightricksVideo

LTX-2.5 Pro

Lightricks' open-source audio and video model, sound and picture in one pass.

video/ltx-2-5-pro
Try it in StudioUse with your agent or API

Hyperreal product orbit: the camera glides in a smooth three-quarter orbit around the statue as a light sweep travels across the sculpted cloak and painted face, dust motes drifting; at the end the bow's arrow flares with light. Premium commercial look. One continuous shot, no cuts, consistent character, correct anatomy and hands, no text, no logos, no captions.

Price
12 credits / second
Makes
Text to video, Image to video
Clip length
6 to 10 s

Best for

LTX-2.5 is Lightricks' open-source audio and video model, and Pro is its quality mode. In Summer it renders 720p clips of six to ten seconds with synchronized sound from a prompt, or from a start frame with an optional end frame.

  • Cutscene beats with sound effects and ambience built in.
  • Animating a key frame into a short establishing shot.
  • Dialogue-free story moments for a trailer.

Put it together

Where LTX-2.5 Pro fits in a game, with the models it works well with. Your agent runs every step.

Price

ModeModelPrice
Text to videoLTX-2.5 Pro12 credits / second
Image to videoLTX-2.5 Pro12 credits / second

Paid from your Summer credits.

Use it from code or your agent

Sign in once with summer login. Your agent or your code then runs it with your paid credits.

npx -y summer-engine@latest login
npx -y summer-engine@latest api run video/ltx-2-5-pro \
  --input '{"prompt":"a dragon circling a castle at dawn","duration":5}' \
  --download .

video/ltx-2-5-pro: $0.12 per second of video. Paid from your Summer credits.

Inputs

What input takes for video/ltx-2-5-pro. Send only what you need; Summer fills in tested defaults.

  • promptstringup to 4000 characters

    What happens in the clip. Needed without imageUrl.

  • imageUrlstringup to 2048 characters

    A public image URL to animate (image to video).

  • endImageUrlstringup to 2048 characters

    With imageUrl: the last frame. The same image as imageUrl makes a seamless loop. Models with an end frame: Seedance, Kling 3, Wan, Vidu, LTX 2.5, Luma, MiniMax.

  • referenceImageUrlsarray of string1 to 10 items

    Reference to video: public images of the characters, props or style to keep (with a reference model, e.g. kling-4-ref). Motion transfer: the character to move.

  • videoUrlstringup to 2048 characters

    An input clip (public URL, at most 20 s): restyle or reframe it, move a character with its motion, or add sound to it (e.g. kling-video-to-audio). Billed on the clip's length.

  • durationintegerDefault 5 · 1 to 20

    Seconds; the model renders its nearest supported length.

  • aspectRatioenumDefault 16:9
    • 16:9
    • 9:16
    • 1:1
    • 4:3
    • 3:4
    • 21:9
    • 3:2
    • 2:3
    • auto
  • negativePromptstringup to 1000 characters

    What the clip must not show.

  • resolutionenum

    Only a quality the model offers; leave out for its default.

    • 720p
    • 1080p
    • 4k
    • 480p
    • 768p
    • 2k
    • 768P
    • 1080P
    • 480P

Model docs · Summer API docs · Set up the Summer MCP server · Try it in the browser

Questions

What is LTX-2.5 Pro good for in game development?
LTX-2.5 is Lightricks' open-source audio and video model, and Pro is its quality mode. In Summer it renders 720p clips of six to ten seconds with synchronized sound from a prompt, or from a start frame with an optional end frame. Typical game uses: cutscene beats with sound effects and ambience built in; animating a key frame into a short establishing shot; dialogue-free story moments for a trailer.
How much does LTX-2.5 Pro cost in Summer?
In Summer Studio: LTX-2.5 Pro (text to video): 12 credits / second; LTX-2.5 Pro (image to video): 12 credits / second. It is charged from your Summer credits.
What can LTX-2.5 Pro generate, and how long are the clips?
In Summer, LTX-2.5 Pro supports text to video and image to video. Generated clips run 6, 8, and 10 seconds, in 16:9 and 9:16 aspect ratios at 720p and 1080p.
Can I use LTX-2.5 Pro from Claude Code, Cursor or Codex?
Yes. Connect the Summer MCP server to Claude Code, Cursor, Codex or another MCP client, then ask your agent to generate with summer_generate_video with model: "ltx-2-5-pro". Setup instructions are at summerengine.com/mcp.
Where do LTX-2.5 Pro results go?
Every generation is saved to your Summer asset library. From there you can download it or bring it into a Summer Engine project.