category: open-source

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Microsoft VibeVoice: Open-Source Frontier Voice AI

Microsoft released VibeVoice, an open-source voice AI model that expands the frontier of accessible speech synthesis and generation. The project demonstrates Microsoft's commitment to democratizing advanced voice technology by making it available to the broader developer community.

Hacker News (AI) · Apr 28, 2026

open source

An open-source spec for orchestration: Symphony

Symphony is an open-source specification for orchestrating Codex agents that integrates issue trackers into always-on agent systems to reduce context switching and boost engineering productivity. The spec enables automated task orchestration without requiring additional tooling overhead.

OpenAI Blog · Apr 27, 2026