LTX 2.5 Fast
The speed tier of Lightricks' LTX 2.5, generating 720p video with synchronized audio from either a prompt or a still. At three credits per second it is one of the cheapest audio-capable video models on the platform, and it stretches to 20 seconds in a single generation where most models stop at 8 to 12. That combination makes it the natural workhorse for long-form b-roll, social loops, and any storyboard pass where you want to see many variations before spending on a flagship.
At a glance
- Price
- 3 Credits/sec
- Our rating
What LTX 2.5 Fast is best for
How LTX 2.5 Fast performs
Strengths
- clips up to 20 seconds in one generation
- synchronized audio at a low per-second price
- accepts a start frame, an end frame, or both
Limitations
- 720p output, softer than the LTX 2.3 tiers at 1080p
- landscape and portrait only
- less motion coherence than Seedance or Veo on complex action
How to prompt LTX 2.5 Fast
Practical tips to get the most out of LTX 2.5 Fast.
- 01name the camera move and the subject action separately
- 02write the audio you want to hear, including ambience and dialogue
- 03keep one continuous action per clip rather than cutting between scenes
Tips are tuned for LTX 2.5 Fast specifically.
Made with LTX 2.5 Fast
Alternatives to LTX 2.5 Fast
Other models on Upsampler that cover similar ground.
LTX 2.3 Fast
Lightricks' fastest LTX 2.3 tier with synchronized audio. Open-weight cinematic concept iteration — describe a clip with audio cues, get a quick render with sound. Use for iteration before stepping up to LTX 2.3 Pro for final renders.
LTX 2.3 Pro
Lightricks' flagship LTX 2.3 with synchronized audio. Higher-fidelity video generation in the open-weight LTX line, with cinematic camera handling and audio sync. Strong choice for teams that want premium video quality on infrastructure they control.
P-Video
Pruna AI's production-tier video model with fast generation, built-in audio, and multi-aspect-ratio support. Optimized for cost-quality balance — solid for production workflows where the top-tier closed models (Veo, Sora) feel too expensive for the use case.
Wan 2.2 14B
Alibaba's flagship Wan 2.2 video model with crisp 480p output and strong stylization. Open-weight availability makes it useful for self-hosted pipelines and teams that want production-quality video generation without closed-API costs. Edged out by Veo, Sora, and Kling at the top tier but cost-competitive.
Frequently asked questions
What is LTX 2.5 Fast?
The speed tier of Lightricks' LTX 2.5, generating 720p video with synchronized audio from either a prompt or a still. At three credits per second it is one of the cheapest audio-capable video models on the platform, and it stretches to 20 seconds in a single generation where most models stop at 8 to 12. That combination makes it the natural workhorse for long-form b-roll, social loops, and any storyboard pass where you want to see many variations before spending on a flagship.
How much does LTX 2.5 Fast cost on Upsampler?
3 credits per second. No subscription, credits never expire.
What are alternatives to LTX 2.5 Fast?
Common alternatives: LTX 2.3 Fast, LTX 2.3 Pro, P-Video, Wan 2.2 14B.
Can I try LTX 2.5 Fast for free?
You can try a free, no-signup version of our ai video generator. Note that the free version may use a different, lighter model rather than LTX 2.5 Fast itself.