Ltx 2.5 Audio Driven Video
Ltx 2.5, from Lightricks' LTX-2 family, turns text or a first-frame image into cinematic video with synchronized audio, while audio-to-video follows a driving dialogue, music, or ambient track and lets that audio determine duration. Choose 24 or 48 fps, generate up to 20 seconds at 720p or 1080p in Fast mode, and access new releases on Atlas Cloud from Day 0. Start building today.
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Explore the Leading Ltx 2.3
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Compare Ltx 2.5 Fast and Pro Generation Modes
Explore six Ltx 2.5 endpoints for text, image, and audio inputs, with synchronized sound, up to 4K output, and Fast or Pro production options.
| Modality | Description |
|---|---|
| Ltx 2.5 Fast A2V API (Audio to Video) | Turn a dialogue, music, or ambient audio track into synchronized video, with the source audio determining the output length. Supporting up to 4K at 24 or 48 fps, this Fast endpoint fits music visuals, dialogue scenes, and rapid audio-led production at a standard base price of $0.09. |
| Ltx 2.5 Pro A2V API (Audio to Video) | For higher-quality audio-driven production, supply dialogue, music, or ambient sound and generate video synchronized to that track. The Pro endpoint supports up to 4K at 24 or 48 fps, making it suitable for polished performances, promotional pieces, and narrative sequences at a standard base price of $0.12. |
| Ltx 2.5 Fast T2V API (Text to Video) | Describe a scene in text and the Fast endpoint produces a cinematic video with synchronized audio. It reaches up to 4K at 24 or 48 fps and supports clips up to 20 seconds at 720p or 1080p, serving storyboards, advertisements, and fast creative iteration for a standard base price of $0.09. |
| Ltx 2.5 Fast I2V API (Image to Video) | Animate a first-frame image, or add an optional last frame to guide how the sequence concludes, while generating synchronized audio. With up to 4K output at 24 or 48 fps and durations up to 20 seconds at 720p or 1080p, it suits product visuals, character shots, and social content at a standard base price of $0.09. |
| Ltx 2.5 Pro T2V API (Text to Video) | Choose the Pro text-to-video endpoint when a written prompt must become a top-quality cinematic clip with synchronized sound. Outputs run from 6 to 10 seconds and support up to 4K at 24 or 48 fps, providing a polished option for commercials, trailers, and finished creative work at a standard base price of $0.12. |
| Ltx 2.5 Pro I2V API (Image to Video) | Starting from a first-frame image, this Pro endpoint creates a top-quality animated sequence and can interpolate toward an optional last frame. It delivers synchronized audio, 6 to 10 second durations, and up to 4K output at 24 or 48 fps for premium campaign assets, cinematic transitions, and presentation-ready shots at a standard base price of $0.12. |
Audio and Video, Generated Together by the Ltx-2.5 API
The Ltx-2.5 API pairs text, image, and extend generation modes with native synchronized audio, controllable frame counts, and six aspect ratio presets, all reachable through one OpenAI-compatible key on transparent pay-as-you-go pricing.
Text to Finished Scene With the Ltx-2.5 API
Describe a scene in up to 2,000 characters and the Ltx-2.5 API turns pure text into a moving, sounding clip with no reference asset required. Your prompt drives subject, motion, lighting, and camera behavior, while an optional seed locks the result for repeatable iteration. Because everything starts from language, it suits storyboarding, concept pitches, and rapid creative exploration when you have an idea but no footage yet.
Bring Any Still Image to Life
Feed a single still in jpg, png, webp, gif, or avif and the model animates it into video with matching audio. The prompt guides how the frame should move, from a slow push-in to a full action beat, while the original composition stays intact. Photographers, designers, and product teams lean on this to turn one hero image into shareable motion without reshooting anything.
Extend Clips Seamlessly Through the Ltx-2.5 API
Upload an existing clip and the Ltx-2.5 API continues it either forward or backward, generating up to 481 additional frames that inherit the original style and pace. The match_input_fps option keeps new footage locked to the source frame rate, so the joins stay invisible. This is how short takes grow into long-form sequences, and how you rescue a scene that ended a beat too early.
Frame Counts and Aspect Ratios on Your Terms
Frame count is fully controllable from 25 up to 257 frames in text and image modes, always set in multiples of eight plus one for clean sampling. Six resolution presets cover square HD at 1024 by 1024, a 512 square, portrait 3:4, portrait 9:16, landscape 4:3, and landscape 16:9, so a single model serves cinema, social, and vertical feeds. Choose the shape first, then let one request return the right crop.
One Key and Reproducible Runs on the Ltx-2.5 API
Every request travels through one OpenAI-compatible key on Atlas Cloud, with transparent pay-as-you-go pricing and no subscription. Pass a fixed seed alongside the same prompt and the model returns the same clip, which turns unpredictable generation into a controllable, versionable step. Day-0 access means new Ltx-2.5 API releases are callable the moment they ship, so teams can standardize a video pipeline and scale it without managing GPUs.
One Prompt, Three Engines: Put the Ltx-2.5 API Head to Head
Send a single identical prompt to the Ltx-2.5 API and two of the most popular video models on Atlas Cloud, then compare how each one handles motion, synchronized audio, and cinematic detail from the exact same instructions.
A curious macaque monkey darts through a crowded Marrakech spice market at golden hour and snatches a merchant's bright red fez off a stall. It bounds across open sacks of saffron and paprika, kicking up swirling orange dust clouds, then freezes on top of a canopy pole and peeks back just as the laughing merchant gives chase. Open on a low-angle tracking shot weaving behind the monkey through the crowd, whip pan to the merchant's startled face, then rise into a sweeping crane shot high above the stalls as dust glitters in the warm light. Realistic cinematic style, shallow depth of field, rich earthy color grade. Audio: lively market chatter, clinking brass, and rhythmic hand-drum percussion that builds into the chase. 16:9 aspect ratio.
Generated with Ltx 2.5 Quality on Atlas Cloud
Generated with Veo3.1 on Atlas Cloud
Generated with Seedance 2.0 on Atlas Cloud
A young sky-courier in a flowing crimson cloak leaps off the edge of a floating stone temple and rides a mechanical paper crane through canyon clouds, weaving between drifting glowing lanterns. She banks hard around a jagged rock spire, snatches a shimmering letter out of the air, then tucks into a steep dive as a rival glider bursts through the mist right behind her. Begin on a first-person POV over her shoulder as the crane launches, cut to a drone shot racing alongside the dive, then drop to a low-angle upward shot as she pulls out of the descent into blinding sunlight. Vibrant anime style, cel-shaded, luminous magic-hour palette. Audio: rushing wind, fluttering paper wings, and a soaring orchestral string swell timed to the pull-up. 16:9 aspect ratio.
Generated with Ltx 2.5 Quality on Atlas Cloud
Generated with Veo3.1 on Atlas Cloud
Generated with Seedance 2.0 on Atlas Cloud
Ltx 2.5 From Soundtrack to Screen
Whether the brief starts with text, a still image, or a driving track, Ltx 2.5 creates synchronized audio and video for campaign concepts, product motion, music visuals, and up-to-4K masters across Atlas Cloud's Fast and Pro endpoints.
Campaign Briefs to Video with Ltx 2.5
Turn a written brief into a cinematic clip with synchronized audio at up to 4K and 24 or 48 fps. Marketing teams can produce campaign concepts, social spots, and storyboards from one request.
Animate Stills Between Key Frames
Start with an opening image, then animate it with synchronized audio while optionally guiding the ending with a final frame. Product teams and illustrators gain polished motion assets without reshooting source material.
Audio-Led Stories with Ltx 2.5
Supply dialogue, music, or ambience, and Ltx 2.5 generates video synchronized to the driving track, with audio defining its length. Creators can build music visuals, spoken scenes, and atmospheric sequences.
Fast Iteration, Pro Delivery
Choose Fast for rapid text, image, or audio-driven generation, then move to Pro when final output quality matters most. Creative teams can test more directions before committing selected concepts to production.
Up to 4K Campaign Masters
When a concept is approved, render up to 4K at 24 or 48 fps for high-resolution delivery. Agencies can prepare polished ads, launch films, and branded clips for demanding screens across channels.
Scale Ltx 2.5 Production
Route text, image, and audio-to-video jobs through one OpenAI-compatible key with transparent pay-as-you-go pricing. Developers can scale mixed production pipelines without maintaining separate model integrations, while selecting Fast or Pro for each workload.
Ltx 2.5 Across Leading Synchronized Video Models
Compare Ltx 2.5 with other video models available on Atlas Cloud by resolution, duration, frame rate, synchronized audio, and standard base price.
| Model | Max Resolution | Output Duration | Frame Rate | Synchronized Audio | Standard Base Price |
|---|---|---|---|---|---|
| LTX-2.5 Fast Text-to-Video | Up to 4K | 6–20 seconds at 720p or 1080p; 6–10 seconds at 4K | 24 or 48 fps | √ | $0.09 |
| LTX-2.5 Pro Text-to-Video | Up to 4K | 6–10 seconds | 24 or 48 fps | √ | $0.12 |
| Seedance 2.0 Text-to-Video | - | Up to 15 seconds | - | √ | $0.112 |
| Veo 3.1 Lite Text-to-video | Up to 1080p | 4, 6, or 8 seconds | 24 fps | √ | $0.05 |
How to Use Ltx 2.3 on Atlas Cloud
Get started in minutes — follow these simple steps to integrate and deploy models through Atlas Cloud's platform.
Create an Atlas Cloud Account
Sign up at atlascloud.ai and complete verification. New users receive free credits to explore the platform and test models.
Why Use Ltx 2.3 on Atlas Cloud
Combining the advanced Ltx 2.3 models with Atlas Cloud's GPU-accelerated platform provides unmatched performance, scalability, and developer experience.
Performance & flexibility
Low Latency:
GPU-optimized inference for real-time reasoning.
Unified API:
Run Ltx 2.3, GPT, Gemini, and DeepSeek with one integration.
Transparent Pricing:
Predictable per-token billing with serverless options.
Enterprise & Scale
Developer Experience:
SDKs, analytics, fine-tuning tools, and templates.
Reliability:
99.99% uptime, RBAC, and compliance-ready logging.
Security & Compliance:
SOC 2 Type II, HIPAA alignment, data sovereignty in US.
Ltx 2.5 Questions for Synchronized Video Workflows
LTX-2.5 is Lightricks' open-weight model family for generating synchronized video and audio. Atlas Cloud provides Fast and Pro endpoints for text-to-video, image-to-video, and audio-to-video workflows.
Turn text prompts into cinematic clips, animate a first-frame image, or generate visuals synchronized to an existing dialogue, music, or ambient track. Image-to-video requests can also use an optional last frame to define where the sequence ends.
Choose a Fast or Pro endpoint on Atlas Cloud, then send the required prompt, image, or audio input with the parameters defined in that endpoint's schema. One OpenAI-compatible key provides access across the available models without requiring you to provision inference hardware.
Six endpoints cover text-to-video, image-to-video, and audio-to-video generation in both Fast and Pro variants. This lets you select a workflow based on the source material and the balance of speed, duration, quality, and price your project requires.
Text-to-video and image-to-video endpoints can produce synchronized audio alongside the visuals. For audio-to-video generation, the supplied dialogue, music, or ambient track drives the visual timing and determines the output length.
Atlas Cloud's verified endpoints support output up to 4K at 24 or 48 fps. Fast text-to-video and image-to-video can generate up to 20 seconds at 720p or 1080p, while Pro text-to-video and image-to-video support 6 to 10 second clips.
Fast is the lower-cost option and supports longer text-to-video and image-to-video clips at 720p or 1080p. Choose Pro when top output quality matters more than the additional base cost and its 6 to 10 second duration range.
Atlas Cloud lists a standard base price of $0.09 for each Fast endpoint and $0.12 for each Pro endpoint. Usage follows transparent pay-as-you-go pricing, so you can select the appropriate variant for each request. Start building today.
Keep each scene focused, describe actions chronologically, and specify the subject, lighting, camera movement, and audio cues in concrete language. For connected shots, name each transition and repeat identifying details for recurring characters or objects. Exact on-screen text and highly chaotic motion can remain inconsistent, so verify critical lettering and complex sequences before delivery.
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Seedance 2.5
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Seedream 5.0 Pro
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Seedance 2.0
Seedance 2.0 is ByteDance’s production video model for precise shot creation. Turn prompts into video, animate a first-frame image with optional last-frame guidance, or shape results with reference media and optional web search. Atlas Cloud brings these workflows into one unified API with transparent pay-as-you-go pricing and one OpenAI-compatible key. Start building today.
Kling V3.0
From Kuaishou, the Kling V3 API family supports text, image, and reference video workflows. Transfer motion while preserving character identity, guide generation with visual references, and edit videos through natural language commands. Atlas Cloud offers Standard and Pro endpoints for different production needs. Already creating with Kling 3.0? Kling V4 is now available on Atlas Cloud. Explore it on the [Kling V4](https://www.atlascloud.ai/models/kling-v4) family page.
Grok Imagine Video
Grok Imagine Video gives developers access to xAI’s video family for creating, animating, extending, and editing clips. Generate 1 to 15 second videos from prompts, guide people, objects, or styles with up to seven reference images, and work at 480p or 720p. Atlas Cloud brings these capabilities together through OpenAI-compatible endpoints with transparent pay-as-you-go pricing. Start building today.
Vidu Q4 Preview
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