Life & fun · September 25, 2025

Cerebray
Turn any arcticle link into an ebook w/ pictures and audio!
Cerebray launched on September 25, 2025 with 8 votes, #1,468 of 8,160 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Transform any article link into an immersive e-book with an AI-powered summary, key points, and audio playback. Cerebray is the ultimate URL to e-book converter and online text-to-speech tool.
Does a similar job
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I generated 70k audiobooks with OpenAI Text-to-Speech2024 · listenly.io · ▲140Hey HN. I’m Ivan, hacker from Ukraine. For about a year, I was working on Listenly — an app to listen to text content with OpenAI's natural-sounding text-to-speech model. At some moment, I realized that it would be cool to take all the public domain e-books and create audio versions for them. So I did it... kind-of. It would cost an immense amount of money to generate all the audio right away (OpenAI TTS costs approximately $0.84/hour of audio; 11labs, for comparison, is 10 times more expensive). So, I took a more gradual approach. I took all the metadata from the Project Gutenberg…
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