InnerTone: an OpenAI hackathon demo builds a browser music "compiler" with Codex
cedric_chee · x · 2026-09-14
- Developer @cedricchee and @beniospit built InnerTone at OpenAI's Singapore Astra hackathon: a player/music "compiler" demo where music changes with you.
- Technical highlights:
- Built with Codex (GPT-6); the player compiles a DSL into in-browser audio, without Suno or similar music services
- Voice prompts and Computer Use steer music generation and control playback
- GPT-Live and Astra light described as blazing fast for iterating on music creation
- GPT-Image-2.5 used for the video cover and to remix a clip into an animated GIF
- A YouTube demo is available.
Related event: InnerTone: Emotion-Adaptive Music Demo at Astra Hackathon(2 posts)→
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