Free trial
The homepage invites users to try ltx 2.3 Pro free, but does not state a trial length, credit allowance or card requirement.
Learn moreltx 2.3
Physics-aware AI video generation for text, image, audio and video inputs
Beginner
What is ltx 2.3?
ltx 2.3 is an audio to video tool. A cloud AI video generator that accepts text, reference images, audio and video together, with a physics-aware motion engine, 4K output at up to 60fps, frame-to-frame character consistency and a post-generation editor for extending clips and inpainting.
ltx 2.3 is a cloud-based AI video generator built around a unified multimodal audio-video architecture. Instead of accepting only a text prompt, it ingests text, up to nine reference images, custom audio and existing footage at the same time, then analyses how those assets relate to each other to interpret the creative intent behind a shot. The result is a generator aimed at people who need more control than a single prompt box offers. The differentiating claim is the physics-aware motion core. The model is trained on real-world biomechanics so that movement respects gravity and inertia, which the vendor positions against the floating characters and uncanny motion common in earlier generation tools. A consistency layer locks faces and clothing across frames to reduce the morphing problem, and output can reach 4K at 60fps for smooth action and sports sequences. Stereo audio is synthesised alongside the visuals and synced to them, and a smart editor lets users extend clips, inpaint specific elements and adjust camera movement after generation rather than re-rolling from scratch. In practice the workflow is three stages: describe or upload your references, set director parameters such as aspect ratio (16:9, 9:16, 1:1), duration, camera motion and motion strength, then generate and download a watermark-free file. Rendering runs on distributed GPUs in the cloud, so no local hardware is required. The product is pitched at filmmakers building animatics and pitch decks, marketers producing product and ad creative for A/B testing, social creators, and game developers needing cutscenes. Compared with general text-to-video services, ltx 2.3 leans on controllability and post-generation editing rather than prompt simplicity, and it sits alongside its own 2.5 and Fast variants in the same catalogue. All subscription tiers carry a commercial licence. Editorial note: the vendor states that all subscription plans include a full commercial licence giving ownership of created content. Confirm current terms on the pricing page before committing to client work.
How do you use ltx 2.3?
1Pick a variant and open the generator
The homepage links to three model options: 2.5, 2.3 Fast and 2.3 Pro. Choose the one that matches your quality and speed needs, then start a generation from that page.
2Review sample output before spending credits
The showcase page collects example videos across biomechanics, lighting and camera work. Watching these first sets a realistic expectation for what prompts and references produce.
3Supply your multimodal inputs
Write a prompt describing scene, action and lighting, or upload up to nine reference images to lock identity and style. Custom audio can be added for lip-sync accuracy, and existing footage for style transfer.4Set director parameters
Choose an aspect ratio (16:9, 9:16, 1:1), define duration, then tune camera movement and motion strength in the settings panel before committing to a render.5Generate, preview and download
Run the generation, preview the result in the dashboard and download the high-definition file. Use the smart editor to extend the clip or inpaint elements if a take is close but not final.6Choose a credit plan
Compare the Basic, Pro and Elite tiers on the pricing page. Higher tiers lower the per-credit rate and add priority rendering, which matters if you batch multiple generations.
Pros and cons
Pros
- Accepts text, up to nine images, audio and video references in a single generationAI
- Physics-aware motion model targets grounded movement rather than floating charactersAI
- Consistency algorithms lock faces and clothing to reduce frame-to-frame morphingAI
- Smart editor supports clip extension, element inpainting and camera control after generationAI
- Every subscription tier includes a commercial licence with watermark-free downloadsAI
Cons
- No free tier is listed; the lowest entry point is a $19.90 credit packAI
- Credits are consumed per generation, so cost per finished video depends on how many takes you burnAI
- Support is limited to an email address and priority routing on paid plansAI
- 4K and 60fps rendering may be credit-intensive relative to 480p and 720p outputAI
- No public API or third-party integration details are documented on the siteAI
How much does ltx 2.3 cost?
Pricing
Three credit-based tiers: Basic at $19.90 for 400 credits ($0.050 per credit), Pro at $49.90 for 1,150 credits ($0.043 per credit) with priority generation, and Elite at $99.90 for 2,500 credits ($0.040 per credit) with maximum render priority. All include 480p, 720p and 1080p output and a commercial licence.
Learn moreSupport
Priority support is offered as a plan benefit, with a support email address listed on the pricing page alongside a 7 day refund policy. The site documents no other support channels.
Learn moreFeatures
Multimodal input engine combining text, images, audio and video; physics-aware motion core trained on real-world biomechanics; consistency algorithms that lock faces and clothing across frames; a smart editor for clip extension, inpainting and camera control; automatic stereo sound synthesis synced to visuals; 4K resolution support at up to 60fps; and cloud-native GPU rendering with encrypted processing.
Learn moreFrequently asked questions about ltx 2.3
How much does ltx 2.3 cost?
Three credit-based tiers: Basic at $19.90 for 400 credits ($0.050 per credit), Pro at $49.90 for 1,150 credits ($0.043 per credit) with priority generation, and Elite at $99.90 for 2,500 credits ($0.040 per credit) with maximum render priority. All include 480p, 720p and 1080p output and a commercial licence.Does ltx 2.3 offer a free trial?
The homepage invites users to try ltx 2.3 Pro free, but does not state a trial length, credit allowance or card requirement.How do you use ltx 2.3?
The walkthrough on this page covers 6 steps: 1. Pick a variant and open the generator 2. Review sample output before spending credits 3. Supply your multimodal inputs 4. Set director parameters 5. Generate, preview and download 6. Choose a credit plan.What platforms does ltx 2.3 support?
ltx 2.3 is available on Web App.What are the limitations of ltx 2.3?
No free tier is listed; the lowest entry point is a $19.90 credit pack. Credits are consumed per generation, so cost per finished video depends on how many takes you burn. Support is limited to an email address and priority routing on paid plans.
Status
StatusActive
Views0
Outbound clicks0
Added11/3/2026
Platforms
Web App
Pricing
FreemiumPaid
