FastRTC: Real-Time Audio/Video Python Library with Gradio UI, WebRTC, and LLM/TTS/STT integrations

AI Impact Summary

FastRTC introduces a Python-native library for building real-time audio/video AI apps. It bundles automatic voice detection and turn-taking, a Gradio-based UI, WebRTC/WebSocket transport, and easy mounting to FastAPI, enabling developers to prototype and deploy streaming AI experiences quickly. The release demonstrates integration with multiple LLMs and TTS/STT backends (SambaNova/OpenAI, Moonshine Base, Kokoro, Meta-Llama-3.2-3B-Instruct), which reduces integration boilerplate but ties production teams to external services and model choices.