AI Fund

Andrew Ng on Voice UI Architecture and the Vocal Bridge Developer Toolkit

Andrew Ng argues that voice-enabled UIs are underappreciated and will become pervasive, drawing on his experience adding voice to a personal app in under an hour using Claude Code. He describes a dual-agent architecture—a low-latency foreground conversational agent paired with a high-intelligence background agentic workflow—as the key to resolving the latency-vs-reliability tradeoff in voice AI. The piece highlights Vocal Bridge, an AI Fund portfolio company, as a developer tooling provider enabling this pattern. Hackathon examples include a clinical trial matcher and a conversational portfolio advisor built with the toolkit.