
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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An API powered by Google's AI technology allows you to accurately convert speech into text. You can accurately caption your content, provide a better user experience with products using voice commands, and gain insight from customer interactions to improve your service. Google's deep learning neural network algorithms are the most advanced in automatic speech recognition (ASR). Speech-to-Text allows for experimentation, creation, management, and customization of custom resources. You can deploy speech recognition wherever you need it, whether it's in the cloud using the API or on-premises using Speech-to-Text O-Prem. You can customize speech recognition to translate domain-specific terms or rare words. Automated conversion of spoken numbers into addresses, years and currencies. Our user interface makes it easy to experiment with your speech audio.
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Google Cloud Text-to-Speech
Utilize an API that leverages Google's advanced AI technologies to transform text into natural-sounding speech. With the foundation laid by DeepMind’s expertise in speech synthesis, this API offers voices that closely resemble human speech patterns. You can choose from an extensive selection of over 220 voices in more than 40 languages and their various dialects, such as Mandarin, Hindi, Spanish, Arabic, and Russian. Opt for the voice that best aligns with your user demographic and application requirements. Additionally, you have the opportunity to create a distinctive voice that embodies your brand across all customer interactions, rather than relying on a generic voice that might be used by other companies. By training a custom voice model with your own audio samples, you can achieve a more unique and authentic voice for your organization. This versatility allows you to define and select the voice profile that best matches your company while effortlessly adapting to any evolving voice demands without the necessity of re-recording new phrases. This capability ensures your brand maintains a consistent audio identity that resonates with your audience.
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Cartesia Sonic-3.5
Sonic 3.5 represents Cartesia's most advanced and fluid text-to-speech model, engineered for dynamic voice synthesis with an impressive latency of under 90 milliseconds and proficient in 42 languages. This model is adept at accurately adhering to transcripts, vocalizing confirmation codes, and interpreting heteronyms seamlessly without the need for any preprocessing, while also maintaining the expressiveness required for genuine conversations. It aims to provide speech of native quality across diverse languages, ensuring that audio clarity is prioritized in every voice output, thus eliminating the need for post-production corrections. Sonic 3.5 excels in delivering high-fidelity audio, making it an ideal choice for production environments where quality, speed, and reliability are essential. The model's engaging conversational style features effective pacing and a genuine emotional range, specifically calibrated for diverse support and agent transcripts. Moreover, it naturally articulates alphanumeric sequences—such as order numbers, phone numbers, IDs, and email addresses—in all supported languages, and its context-sensitive English pronunciation ensures that words like "read," "bass," and "bow" are pronounced correctly based on their textual context. This level of sophistication in voice generation not only enhances user experience but also establishes Sonic 3.5 as a leader in the field of text-to-speech technology.
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