Picks the right engine for your length, resolution and input.
4–30s720p · 1080p · 4kNative audio
From 236 creditsPriced as the engine it picksVidBoss Auto Details
LightricksBetaFast4KLong takes
LTX 2.5 Fast
LTX 2.5 Fast reaches 20 seconds at 720p/1080p and offers 4K at 6–10 seconds.
Generate with LTX 2.5 FastFrom 298 creditsExact price shown in the studio before you generate
Beta: this model is wired to its published API but hasn't completed a paid live validation run on VidBoss yet. If a generation fails, its credits are returned automatically.
How it works
- Same flow as LTX 2.5 Pro with longer and 4K options.
Strengths
- Up to 20 seconds
- 4K option
Limits to know
- Duration limits depend on resolution
Best for
Longer promos4K drafts
Specs
| Lengths | 720p: 6, 8, 10, 12, 14, 16, 18, 20 seconds · 1080p: 6, 8, 10, 12, 14, 16, 18, 20 seconds · 4k: 6, 8, 10 seconds |
|---|---|
| Resolution | 720p, 1080p, 4k |
| Aspect ratio | 16:9 or 9:16 |
| Audio | Optional native audio (on or off) |
| Inputs | Prompt, Image or saved character (optional) |
Example prices
| Clip | Credits |
|---|---|
| 6s · 720p · silent | 298 |
| 6s · 720p · with audio | 298 |
| 8s · 720p · silent | 390 |
| 8s · 720p · with audio | 390 |
| 20s · 720p · silent | 945 |
| 20s · 720p · with audio | 945 |
| 6s · 1080p · silent | 421 |
| 6s · 1080p · with audio | 421 |
1 credit = $0.01 at list price. Credits held for a generation are returned if it fails.
LTX 2.5 Fast compared
Limits as set up on VidBoss AI today.
| Model | Starts from | Length | Resolution | Sound | Best for |
|---|---|---|---|---|---|
| LTX 2.5 Fast Lightricks | Text · Photo | 6–20 s | 720p, 1080p, 4K | Optional | Longer promos, 4K drafts |
| Kling 3.0 Pro Kuaishou | Text | 3–15 s | 1080p | Optional | Cinematic scenes, Dialogue shots |
| Kling 3.0 Pro · Image to Video Kuaishou | Photo (required) | 3–15 s | 1080p | Optional | Product shots, Character animation |
LTX 2.5 Fast FAQ
What is LTX 2.5 Fast?
Longer LTX clips (up to 20 s) and 4K. It is made by Lightricks and available in the VidBoss AI studio as a beta model.
How long can LTX 2.5 Fast videos be?
720p: 6, 8, 10, 12, 14, 16, 18, 20 seconds · 1080p: 6, 8, 10, 12, 14, 16, 18, 20 seconds · 4k: 6, 8, 10 seconds.
Does LTX 2.5 Fast generate sound?
Optional native audio (on or off).
What can I start a LTX 2.5 Fast video from?
Prompt, Image or saved character (optional).
How much does LTX 2.5 Fast cost on VidBoss AI?
From 298 credits per video, depending on length and settings. The exact price is shown before you generate, and the credits are returned automatically if a render fails. Every plan includes every model.
Guides
Similar models
Cinematic motion, natural physics and native dialogue.
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CinematicIdentity lock
From 236 creditsExact price shown before you generateKling 3.0 Pro · Image to Video Details
Start today
Make your first AI video from $4.99.
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6,554 credits, the full Business allowance
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- Exact credit price before every render
- Failed renders refund their credits
- Secure checkout by Stripe
- Cancel any time
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