KittenTTS

Pricing model
Open Source
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KittenTTS is an ultra-lightweight open-source text-to-speech model that converts written text into natural-sounding speech with impressive quality, all while requiring minimal computational resources. Unlike most speech conversion AI models that demand powerful hardware, KittenTTS operates efficiently on almost any device, including older computers, Raspberry Pi, and even browsers, thanks to its tiny size of 25 MB and design with 15 million parameters. This AI model provides several realistic voices in real-time without needing an internet connection or GPUs, making it ideal for developers creating privacy-focused applications, edge computing projects, accessibility tools, or any scenarios where resource efficiency is vital. Combining high output quality, incredible speed on CPU-only systems, and an open-source Apache 2.0 license, KittenTTS represents a breakthrough in AI-powered voice conversion where larger models simply cannot function.

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Paid
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Freemium
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Beepbooply is a text-to-speech application powered by AI that enables users to swiftly and effortlessly produce audio content featuring lifelike voices. Supporting more than 80 languages, 120 accents, and 900 voice options, users can personalize their audio and create extensive, high-quality audio content with just a single click. Beepbooply provides both free and paid plans for personal and commercial purposes, with unrestricted downloads and projects.
Price Unknown / Product Not Launched Yet
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Outtloud is an AI-driven reading and listening tool that transforms documents and text into realistic AI voices, allowing users to listen to content at speeds of up to 4x. This feature is particularly beneficial for multitasking during activities like driving, commuting, or exercising. Outtloud helps users save time by summarizing lengthy documents, reducing reading time by 90%, and providing a more efficient method for absorbing information. Furthermore, it includes a variety of human-like voices in multiple languages, a focus mode for read-along sessions, and options to add notes and bookmarks. This makes it an adaptable tool for students, professionals, and dedicated readers who want a more flexible and convenient approach to consuming written content.