Issues

• Cartesia TTS fails with today's cartesia SDK, and sonic-2 stops working on October 20

  gradio-app/fastrtc#438 · Filter by author 23821 opened on Oct 1, 2026

• Feature Request: Structured Per-Turn Metrics and Lifecycle Events for Real-Time Streams

  gradio-app/fastrtc#434 · Filter by author bhargavikalicheti opened on Sep 6, 2026

• Timeout retry in player_worker_decode runs emit() concurrently → "generator already executing", stream permanently frozen after one slow turn

  gradio-app/fastrtc#431 · Filter by author abePclWaseda opened on Jun 11, 2026

• fastrtc.org DNS is broken

  gradio-app/fastrtc#429 · Filter by author Arlaz opened on Jun 4, 2026
  2

• Add support for Gradio 6

  gradio-app/fastrtc#428 · Filter by author alozowski opened on Jun 4, 2026

• The Gemini Cookbook example in FastAPI doesn't always trigger start_up()

  gradio-app/fastrtc#420 · Filter by author Zundrium opened on Jan 7, 2026

• Bad image quality and fps when streaming webcam 2-way

  gradio-app/fastrtc#419 · Filter by author Michelvl92 opened on Jan 7, 2026

• Agent is not interruptible.

  gradio-app/fastrtc#417 · Filter by author RasikhUrRehman opened on Dec 3, 2025
  2

• FastRTC - Custom OpenAI Realtime AsyncStreamHandler - how to integrate existing OpenAI tools

  gradio-app/fastrtc#416 · Filter by author gsvitak-workwave opened on Nov 28, 2025

• Passing additional values through the offer/stream module

  gradio-app/fastrtc#415 · Filter by author fahdbahri opened on Nov 25, 2025

• End-to-end Performance？

  gradio-app/fastrtc#411 · Filter by author maqingxiang opened on Nov 4, 2025

• the issue of receiving the number of audio frame samples

  gradio-app/fastrtc#410 · Filter by author jessfxxx opened on Oct 29, 2025

• WebRTC webcam streaming does not work on iPad browser

  gradio-app/fastrtc#409 · Filter by author Michelvl92 opened on Oct 25, 2025

• Where's the connection of fastrtc and gradio?

  gradio-app/fastrtc#407 · Filter by author silverbulletmdc opened on Oct 16, 2025

• Stream object does not have direct access to all WebRTC connections when using Gradio UI

  gradio-app/fastrtc#403 · Filter by author marcusvaltonen opened on Oct 11, 2025
  3

• WebRTC send-receive audio creates High CPU Utilization

  gradio-app/fastrtc#401 · Filter by author BajaMexico opened on Oct 4, 2025
  2

• Do I need to implement the ".receive" method of my customized "StreamHandler" class, if I only use a "recieve-only" WebRTC component

  gradio-app/fastrtc#398 · Filter by author ANYMS-A opened on Sep 26, 2025

• Using HTTP endpoints in parallel to the WebRTC stream

  gradio-app/fastrtc#395 · Filter by author Borzyszkowski opened on Sep 17, 2025

• asyncio.exceptions.InvalidStateError: invalid state

  gradio-app/fastrtc#391 · Filter by author wanglg009 opened on Sep 17, 2025
  1

• Importing fastrtc in a uv Python 3.10.0 project causes a crash

  gradio-app/fastrtc#390 · Filter by author yondonfu opened on Sep 12, 2025
  4

• I use "stream.mount(app, path=’/xx‘)",mount the stream on a custom path, however, when entering the path, the web displays 404 Not Found?

  gradio-app/fastrtc#387 · Filter by author Wenhao-Li-coder opened on Sep 8, 2025
  1

• Startup Function not working with Websockets

  gradio-app/fastrtc#385 · Filter by author rohan-richard opened on Sep 3, 2025
  3

• Mute / ignore user inputs during yield

  gradio-app/fastrtc#381 · Filter by author AndreasKarasenko opened on Aug 19, 2025
  5

• Group Calling

  gradio-app/fastrtc#362 · Filter by author RaihanulHaque opened on Jul 15, 2025
  1

• How to process text only mode?

  gradio-app/fastrtc#359 · Filter by author david-ng-hk opened on Jul 5, 2025
  4