Describe any AI voice and prompt its emotional delivery
The first LLM for text-to-speech. While other TTS just “reads” words, Octave grasps their meaning. Create any AI voice with a descriptive prompt, guide its emotional delivery (angrier! more sarcasm!), and bring your stories to life with human-like expression.
Hey Product Hunt! I’m Alan Cowen, CEO and Chief Scientist at Hume AI.
We're launching Octave, the first of a new generation of text-to-speech models. Traditional TTS models focus on the mechanical process of turning letters into sounds. Octave isn't a traditional TTS model, but a voice-enabled LLM, trained on 1000x more language. As a result, it understands the cognitive and emotional aspects of human speech. It reads your script like a human actor, delivering realistic emotions, sarcasm, pace, word emphasis, and more.
And unlike any other other TTS system, it can take explicit instructions to generate any voice you describe and modify its emotional tone and speaking style.
Octave is made possible by Hume's research. We're leading the space in voice-enabled LLMs, and we run large-scale psychology studies to help fine-tune our models to generate the right voices at the right time, drawing on a decade of research at the intersection of emotion science and AI.
We’re launching both a platform for creators and an API for developers. We're also launching the Expressive TTS Arena (arena.hume.ai)—a new public benchmark for evaluating emotion-rich, long-form speech generation with instructions.
I’ll be here all day to answer questions and discuss how this technology evolved from our emotion research. Thank you for checking out Octave!
About Octave TTS on Product Hunt
“Describe any AI voice and prompt its emotional delivery”
Octave TTS launched on Product Hunt on February 27th, 2025 and earned 295 upvotes and 49 comments, earning #3 Product of the Day. The first LLM for text-to-speech. While other TTS just “reads” words, Octave grasps their meaning. Create any AI voice with a descriptive prompt, guide its emotional delivery (angrier! more sarcasm!), and bring your stories to life with human-like expression.
On the analytics side, Octave TTS competes within Artificial Intelligence and Maker Tools — topics that collectively have 468.9k followers on Product Hunt. The dashboard above tracks how Octave TTS performed against the three products that launched closest to it on the same day.
Who hunted Octave TTS?
Octave TTS was hunted by Ben Lang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Ben Lang
Hey Product Hunt! I’m Alan Cowen, CEO and Chief Scientist at Hume AI.
We're launching Octave, the first of a new generation of text-to-speech models. Traditional TTS models focus on the mechanical process of turning letters into sounds. Octave isn't a traditional TTS model, but a voice-enabled LLM, trained on 1000x more language. As a result, it understands the cognitive and emotional aspects of human speech. It reads your script like a human actor, delivering realistic emotions, sarcasm, pace, word emphasis, and more.
And unlike any other other TTS system, it can take explicit instructions to generate any voice you describe and modify its emotional tone and speaking style.
Octave is made possible by Hume's research. We're leading the space in voice-enabled LLMs, and we run large-scale psychology studies to help fine-tune our models to generate the right voices at the right time, drawing on a decade of research at the intersection of emotion science and AI.
We’re launching both a platform for creators and an API for developers. We're also launching the Expressive TTS Arena (arena.hume.ai)—a new public benchmark for evaluating emotion-rich, long-form speech generation with instructions.
Ready to try it?
Try Octave: hume.ai
Join our Discord: https://link.hume.ai/discord
Follow our updates: x.com/hume_ai
I’ll be here all day to answer questions and discuss how this technology evolved from our emotion research. Thank you for checking out Octave!