
Most AI video tools hand you a black box: closed weights, a subscription, and no way to see what is happening under the hood. LTX takes the opposite approach. Built by Lightricks, LTX is an open foundation model that generates and simulates across video, audio, and the physical world, and it puts the weights, the code, and the control in your hands.
At the center of the model is LTX-2.5, a 22B-parameter dual-stream diffusion transformer that produces native 4K video at up to 50 frames per second, with audio and video generated together in a single pass rather than stitched together afterward. Artificial Analysis, an independent benchmarking group, currently ranks LTX among the top three AI video models in the world.
You choose how you want to use it. Download the open weights and run LTX-2.5 on your own hardware. License the model for on-premise deployment backed by enterprise support. Or build directly on LTX Studio, the production suite that turns the model into a full creative workflow. Companies like ElevenLabs, Asteria Film Co., Magnopus, and NVIDIA already rely on LTX for their own work.
LTX is not built for one-off social clips. It is infrastructure for teams that generate motion, audio, and physical environments as part of their own products and pipelines.
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You can watch videos from anywhere, anytime, even offline. It's easy to download: simply copy the link from your browser, and then click 'Paste Link" in the application. You can save full playlists and channels on YouTube in high-quality and other video or audio formats. Download your YouTube Mix, Watch Later and Liked videos as well as private YouTube playlists. Receive new videos from your favorite YouTube channels automatically. You can feel the action around you with virtual reality videos. To experience the amazing VR experience in 360deg, download 360deg videos. You can bypass any restrictions placed by your Internet service provider to bypass your school firewall or workplace firewall. To access YouTube and other sites, set up an in-app proxy connection.
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SadTalker
SadTalker allows individuals to produce realistic videos by merging facial images with audio, achieving impeccable lip synchronization and lifelike expressions. This innovative tool accommodates multilingual lip-syncing, adjusting lip movements to align with various languages through immediate processing, thereby elevating the authenticity of animated figures or digital avatars. Users have the ability to customize eye blinking and modify the frequency of blinks, which contributes to more nuanced and expressive animations. Another standout feature is dynamic video driving, which replicates facial expressions from existing videos to enrich the generated content, leading to lively and expressive animations. With unmatched performance, SadTalker guarantees exceptional accuracy and quality in visual rendering and effects, resulting in sharp and clear video outputs that seamlessly integrate with real-time processing. The process of creating videos using SadTalker is straightforward and involves three easy steps: upload a source image, provide audio for synchronization with the image, and simply click 'generate' to create the final video. This user-friendly approach makes it accessible for anyone to create compelling animated content quickly.
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Perso AI
Dubbing a video into 33+ languages used to mean hiring voice actors, booking studios, and waiting weeks. Perso AI Dubbing replaces that entire workflow with a cloud-based AI platform that delivers studio-quality localized video in minutes.
The platform combines:
- ElevenLabs-powered voice cloning (2025 partnership) that carries each speaker's tone and emotion across languages
- Natural lip sync aligning translated audio to on-screen mouth movements
- Speech recognition covering 99+ languages
- Multi-speaker detection — up to 10 distinct speakers per video
- Script editor with per-speaker review and automatic subtitle export
Adopted by 450,000+ users in 80+ countries. Plans from $6.99 per month. Built by ESTsoft (founded 1993, KOSDAQ: 047560, ISO/IEC 27001 certified).
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