Show HN: CueLight – open-source <2mb/0.5M param always listening turn detector

Category: ai-ml

Tags: voice-agents, turn-detection, streaming, on-device, speech-processing

Score: 7.5/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 7)

CueLight is a streaming turn detector for voice agents that updates end-of-turn probability every 20ms from audio alone, enabling always-listening operation. The Nano model achieves comparable accuracy to Smart Turn with 1/16 the parameters (0.5M, 1.9MB), while the Base model outperforms on benchmarks with lower latency. It fills a gap for low-resource, continuous turn detection on devices from phones to servers.

Target audience: voice agent developers, speech processing engineers, embedded ML developers

Repository: https://sshah03.github.io/CueLight/ · Python · Apache-2.0 · 12 stars

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