Video Gen Editor

LTX-2.5 Fast: Quick AI Video From 720p to 4K

LTX-2.5 Fast is Lightricks' speed-focused video model. It turns prompts around quickly without dropping to low resolutions, going from 720p all the way to 4K. It's a good everyday model for iterating on an idea before you spend more on a premium render, and good enough for plenty of finals.

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LTX-2.5 Fast specs

Made by
Lightricks
Clip length
6 to 20 seconds
Resolutions
720p, 1080p, 2K, 4K
Shapes
16:9, 9:16
Starts from
Text, Image
Extra inputs
First and last frames, a reference image, an audio track
Sound
Generated with the video
Frame rate
24, 25, 48, 50 fps

LTX-2.5 Fast pricing

LTX-2.5 Fast price per resolution
ResolutionPer second6-second clip10-second clip
720p$0.09$0.54$0.90
1080p$0.13$0.78$1.30
2K$0.19$1.14$1.90
4K$0.30$1.80$3.00

These are the published per-second rates. The composer shows the exact estimate for your settings before you generate, and failed generations aren't charged. Prices last checked September 24, 2026. Credits come with our plans.

What it's good at

  • Output at 720p, 1080p, 2K or 4K.
  • Set lengths of 6 to 20 seconds in 2-second steps, or let it choose.
  • Camera movement presets (dolly, jib and more), so you don't have to describe the move in words.
  • First and last frame guidance, plus a reference image.
  • Optional native audio.
  • 24, 25, 48 or 50 frames per second.

Best for

  • Drafts and storyboards

    Try lots of ideas fast, then re-run the winners on a bigger model.

  • Social and ad content

    Volume work for Reels, TikTok and Shorts.

  • Affordable 4K

    4K from $0.30 a second.

  • Photo animation

    Quick tests in the AI image to video tool.

Things to know

  • At 2K or 4K, and at 48 or 50 fps, clips are at most 10 seconds.
  • Only two shapes: 16:9 and 9:16.
  • You can also drive it with an audio track and a reference image, but in that mode it renders at 1080p and ignores duration and camera settings.

A LTX-2.5 Fast prompt to try

A lighthouse on a rocky headland at golden hour, waves breaking below, seabirds circling, warm backlight, cinematic.

Pick the “dolly in” camera preset rather than describing the move. The preset gives a steadier result.

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Frequently asked questions

Is LTX-2.5 Fast good enough for final videos?

Often, yes, especially for social content. For hero shots with people, or anything that needs long-range consistency, it's worth re-rendering your best prompt on Seedance 2.5 or Gemini Omni Flash 1.1.

Can LTX-2.5 Fast generate 4K?

Yes, for clips of up to 10 seconds, at $0.30 a second.

How much does LTX-2.5 Fast cost?

From $0.09 a second at 720p to $0.30 at 4K. A 6-second 720p clip costs about $0.54.