Free trial
The open weights, code and LTX Desktop app are free to download and run, and the console playground allows testing before committing. No time-limited trial is stated.
Learn moreLTX by Lightricks
Open-weight multimodal video model built for production pipelines
Advanced API
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What is LTX by Lightricks?
LTX by Lightricks is a multimodal generative video model with open weights, an API and an on-prem path. LTX-2.5 adds native multishot scenes, HDR output, keyframe-based rendering and a fine-tunable checkpoint, aimed at studios and engineering teams rather than casual clip makers.
LTX by Lightricks is a family of generative video models released under the LTX Model umbrella, with LTX-2.5 as the current flagship. The core claim is not novelty for its own sake but production readiness: the model can be reached through an API, deployed on premises, or downloaded as open weights. LTX-2.5 is built on a 22B-parameter asymmetric dual-stream diffusion transformer, and Lightricks publishes both the weights and the code, alongside a technical paper describing joint audio-video generation with bidirectional cross-attention and modality-aware guidance. What separates LTX from single-clip generators is scope. Native multishot generation holds character, environment, lighting and voice consistent across wide, medium and close-up shots in one pass, rather than stitching separate clips. Auto Duration predicts clip length from the described action, Diffusion Fidelity Rendering builds each scene from a grid of keyframes, and native HDR output lands in 4K with a 16-bit HDR pipeline intended for grading and finishing. A pretrained checkpoint supports deep fine-tuning, and a workflow library covers text to video, image to video, audio to video, extend, restore, colorization, deburring, day to night and layout to render. The audience is professional: post-production and VFX houses, agencies, in-house brand studios, and engineering teams embedding video generation into a product. Lightricks also courts academic groups through research grants and positions the model for real-time experience and physical AI work. LTX Desktop packages generation, editing and organization into a free open-source app that runs locally on supported hardware, which matters to teams that cannot send footage to a server. How it sits among alternatives depends on what a buyer needs. Cloud-first tools offer a polished interface and nothing else. LTX offers a console playground and API for quick starts but pushes toward self-hosting and fine-tuning at the deep end. The trade-off is that open weights mean hardware requirements, setup work and version management are the user's problem. Licensing is tiered: open source and free for companies under $10M in revenue, with a commercial license for larger teams.
How do you use LTX by Lightricks?
1Pick the model version that matches your goal
LTX ships several generations at once. Compare LTX-2.5, LTX-2.3, LTX-2 and LTXV on the model pages, then check the 2.5 docs for capabilities before committing a pipeline to one checkpoint.2Get an API key and try the playground
Create a console account to obtain an API key. The playground lets you run prompts against the hosted model before writing any code, which is the fastest way to judge output quality.3Review the API documentation
Read the LTX-2.5 API docs for endpoints, parameters and output formats, then wire the model into your own pipeline or application.4Run the model locally with LTX Desktop
If data cannot leave your machine, install the free open-source desktop app. It generates, edits and organizes video on supported local hardware with no per-generation fees.5Fine-tune on your own footage
Use the pretrained checkpoint and LTX Trainer to adapt the base model to a house style or recurring subject. The open source getting-started guide covers the setup path.6Confirm licensing before commercial deployment
Read the license terms to see whether the open source route covers your company's revenue level. Teams above the threshold need a commercial license arranged through sales.
Pros and cons
Pros
- Open weights, code and tooling are published, so teams can self-host and fine-tune rather than rent accessAI
- Native multishot generation keeps character, lighting and voice consistent across connected scenesAI
- Native HDR output in 4K with a 16-bit pipeline is designed to drop into professional grading workflowsAI
- Multiple delivery routes: hosted API, on-prem deployment, open weights and the free LTX Desktop appAI
- Free for companies under $10M in revenue under the open source license, with grants for academic teamsAI
Cons
- Open weights shift the burden of hardware, setup and version management onto your own teamAI
- The commercial license above the revenue threshold is quote-based, so larger teams cannot budget from the site aloneAI
- Feature depth assumes professional finishing knowledge (EXR, HDR grading, LoRAs), which is steep for newcomersAI
- No published integration list, so pipeline fit has to be checked manually against your stackAI
- Running locally on supported hardware means hardware capability, not the model, sets your ceilingAI
How much does LTX by Lightricks cost?
Pricing
The site does not publish a price list for the model. LTX-2.5 is fully open source and free for companies under $10M in revenue; larger teams need a commercial license tailored to product, infrastructure and support needs, arranged through sales. API access via the console is described as having clear, predictable pricing.
Learn moreIntegrations
No formal integration catalogue is listed on the homepage. The model is offered through an API, on-prem deployment and open weights, and appears in partner products such as ElevenLabs, with ecosystem logos including ComfyUI, fal, RunDiffusion, OpenArt and NVIDIA.
Learn moreFeatures
Native multishot generation with persistent character, environment, lighting and voice; Auto Duration that predicts clip length from the action; Diffusion Fidelity Rendering from a keyframe grid; native 4K HDR output built for grading; a pretrained fine-tuning checkpoint; and a workflow library covering text, image and audio to video, extend, restore, colorization, deburr, day to night and layout to render.
Learn moreFrequently asked questions about LTX by Lightricks
How much does LTX by Lightricks cost?
The site does not publish a price list for the model. LTX-2.5 is fully open source and free for companies under $10M in revenue; larger teams need a commercial license tailored to product, infrastructure and support needs, arranged through sales. API access via the console is described as having clear, predictable pricing.Does LTX by Lightricks offer a free trial?
The open weights, code and LTX Desktop app are free to download and run, and the console playground allows testing before committing. No time-limited trial is stated.Does LTX by Lightricks have an API?
Yes, LTX by Lightricks offers an API.How do you use LTX by Lightricks?
The walkthrough on this page covers 6 steps: 1. Pick the model version that matches your goal 2. Get an API key and try the playground 3. Review the API documentation 4. Run the model locally with LTX Desktop 5. Fine-tune on your own footage 6. Confirm licensing before commercial deployment.What platforms does LTX by Lightricks support?
LTX by Lightricks is available on Web App, MacOS, Windows and Linux.What does LTX by Lightricks integrate with?
No formal integration catalogue is listed on the homepage. The model is offered through an API, on-prem deployment and open weights, and appears in partner products such as ElevenLabs, with ecosystem logos including ComfyUI, fal, RunDiffusion, OpenArt and NVIDIA.
Status
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Added10/21/2026
Platforms
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