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LTX 2.5 Fast

The quicker LTX 2.5 SKU for 6–20 second clips at 720p through 4K, with first/last frames, optional audio, and 24–50 fps.

Runs online, no installIncluded in plans from $19/mo

Try LTX 2.5 Fast in Video LabCompare all models

Video Lab runs on a monthly plan. Clip Pro is $9 for your first month, then $19/mo.

LTX 2.5 Fast sample output
Official sample

Official sample · Results vary by prompt and settings

Inspect the sample frame.

Story

Need a whole narrated film?

Story to Video turns a written story into a narrated multi-shot film with its own shot models. Use LTX 2.5 Fast here when you want a single directed take.

How Story works

Example output

Story arc

A written story → a multi-shot filmMP4

Direct answer

What is LTX 2.5 Fast, and when should you use it?

LTX 2.5 Fast is the accelerated LTX 2.5 path in Video Lab. Generate from text, animate a source frame, or define both ends of a shot at 720p, 1080p, 1440p, or 4K with selectable frame rates and optional audio. Clips run 6 to 20 seconds in 2-second steps. Over 10 seconds needs 720p or 1080p at 24 or 25 fps; 1440p, 4K, 48 fps, and 50 fps stop at 10 seconds.

Best for

Faster LTX drafts, 4K LTX 2.5 delivery, and shots that need 24, 25, 48, or 50 fps.

Technical readout

The supported shot envelope.

Duration
6–20 seconds in 2-second steps; up to 10 seconds at 1440p, 4K, 48 fps, or 50 fps
Resolution
720p, 1080p, 1440p, or 4K
Aspect ratio
16:9 or 9:16
Audio
Optional generated audio

Catalog modes: Text prompt · Animate image · First → last. Advanced controls: Frame rate. References: Not available.

Catalog delta

What’s new vs LTX 2.5 Pro

Differences below are from the live Video Lab catalog—duration, resolution, audio, modes, and controls—not from a ranked shoot-out.

  • LTX 2.5 Fast generates 6–20 seconds. Over 10s needs 720p or 1080p at 24 or 25 fps.. LTX 2.5 Pro generates 6, 8, or 10 seconds.
  • LTX 2.5 Fast output sizes: 720p, 1080p, 1440p, 4K. LTX 2.5 Pro: 720p, 1080p.
  • Frame rate: LTX 2.5 Fast 24 fps, 25 fps, 48 fps, 50 fps. LTX 2.5 Pro 24 fps, 25 fps, 50 fps.
  • Fast adds 1440p, 4K, and 48 fps on top of the 2.5 Pro 720p/1080p envelope, and runs up to 20 seconds at 720p or 1080p with 24 or 25 fps. 1440p, 4K, 48 fps, and 50 fps stop at 10 seconds.
Open the LTX 2.5 Pro page

How it compares

LTX 2.5 Fast vs LTX 2.5 Pro

Side-by-side from the Video Lab catalog. Try both with the same prompt when the modes overlap.

Duration

LTX 2.5 Fast

6–20 seconds. Over 10s needs 720p or 1080p at 24 or 25 fps.

LTX 2.5 Pro

6, 8, or 10 seconds

Resolution

LTX 2.5 Fast

720p, 1080p, 1440p, 4K

LTX 2.5 Pro

720p, 1080p

Aspect ratios

LTX 2.5 Fast

16:9, 9:16

LTX 2.5 Pro

16:9, 9:16

Audio

LTX 2.5 Fast

Optional generated audio

LTX 2.5 Pro

Optional generated audio

Modes

LTX 2.5 Fast

Text prompt, Animate image, First → last

LTX 2.5 Pro

Text prompt, Animate image, First → last

References

LTX 2.5 Fast

Not available

LTX 2.5 Pro

Not available

Advanced controls

LTX 2.5 Fast

Frame rate

LTX 2.5 Pro

Frame rate

Frame rate

LTX 2.5 Fast

24 fps, 25 fps, 48 fps, 50 fps

LTX 2.5 Pro

24 fps, 25 fps, 50 fps

Try LTX 2.5 FastTry LTX 2.5 ProOpen LTX 2.5 Fast vs LTX 2.5 Pro

Compare

Head-to-head pages for LTX 2.5 Fast

LTX 2.5 Fast vs LTX 2.5 Pro

Why choose it

  • 720p through 4K
  • Animate and first/last frames
  • 24–50 fps including 48 fps

What to consider

  • Over 10 seconds needs 720p or 1080p at 24 or 25 fps
  • Supports landscape and vertical rather than every social ratio

Prompt direction

How to prompt LTX 2.5 Fast

Choose frame rate for the intended motion feel first, then describe camera velocity and subject movement in language that matches it.

Prompts that work

  1. 01Choose 48 fps, then a splash insert at 6 seconds and 4K.

    Try this prompt

  2. 0224 fps crane over a 1080p tabletop held for 18 seconds; Fast when you want the quicker 2.5 SKU.

    Try this prompt

  3. 03First and last frames of a city crosswalk; 8 seconds, optional traffic.

    Try this prompt

  4. 049:16 app demo at 1440p when 2.5 Pro’s 1080p ceiling is not enough.

    Try this prompt
Open LTX 2.5 Fast in Video Lab

Questions, answered

LTX 2.5 Fast FAQ

What is LTX 2.5 Fast best for?

LTX 2.5 Fast is the quicker LTX 2.5 SKU for 720p through 4K clips with first/last frames and selectable frame rates.

Can LTX 2.5 Fast use first and last frames?

Yes. Video Lab supports a single source image or both first and last frames at 720p through 4K.

How is LTX 2.5 Fast different from LTX 2.5 Pro?

2.5 Pro is 720p or 1080p with 24, 25, or 50 fps. Fast adds 1440p, 4K, 48 fps, and shots up to 20 seconds at a lower per-second rate. 2.5 Pro uses 6, 8, or 10 second shots.

Which frame rates are supported?

The supported choices are 24, 25, 48, and 50 frames per second.

Is LTX 2.5 Fast free?

No. LTX 2.5 Fast runs on a paid monthly plan. Every monthly plan opens every Video Lab model, including LTX 2.5 Fast, and every generation is quoted before you generate.

How much does LTX 2.5 Fast cost?

LTX 2.5 Fast uses the monthly generation allowance that comes with every Clip Studio plan. Clip Pro is $19/mo ($9 for the first month if you have never subscribed). How much of the allowance a clip uses depends on its length, resolution, and audio, and the exact amount is quoted before you generate. At the default setup (6 seconds at 1080p with audio), Clip Pro’s monthly allowance covers about 8 LTX 2.5 Fast clips, roughly 48 seconds of video, if you spend it all on LTX 2.5 Fast. A different length or resolution changes that number, and Studio Elite and Studio Scale have larger allowances. Plan details live on the pricing page.

How do I try LTX 2.5 Fast online?

Open Video Lab at /video-lab?model=ltx-2-5-fast with LTX 2.5 Fast already selected. Sign in, write a prompt or add a source image, set the length and format, check the quote, then generate. Generate 6–20 second clips at 720p, 1080p, 1440p, or 4K with first/last frames, optional audio, and 24, 25, 48, or 50 fps. Over 10 seconds needs 720p or 1080p at 24 or 25 fps. The finished clip lands in your Clip Studio Library.

Try LTX 2.5 Fast in Video Lab See plans

Change the lens

Compare LTX 2.5 Fast with another model.

LTX 2.3 Pro sample outputOfficial sampleLightricks logoLightricksOriginal model creator

LTX 2.3 Pro

A production-oriented text-and-image model with first/last frames, 1080p to 4K output, and frame-rate controls.See modelLTX 2.5 Pro sample outputOfficial sampleLightricks logoLightricksOriginal model creator

LTX 2.5 Pro

Lightricks’ newer Pro SKU for 720p and 1080p clips with first/last frames, optional audio, and 24, 25, or 50 fps.See modelVeo 3.1 sample outputOfficial sampleGoogle logoGoogleOriginal model creator

Veo 3.1

A premium text-and-image video model for cinematic shots, guided frames, references, optional audio, and up to 4K output.See modelVeo 3.1 Fast sample outputOfficial sampleGoogle logoGoogleOriginal model creator

Veo 3.1 Fast

A faster, lower-cost Veo 3.1 SKU for cinematic shots, guided frames, references, optional audio, and up to 4K.See model

Lightricks lens selected

Direct your first LTX 2.5 Fast shot.

Write a prompt or bring a still. Video Lab quotes the setup before you generate, and the clip lands in your library.

Try LTX 2.5 Fast in Video LabOr tell a whole story