Problem with Chat hub

Questions
1

Describe the problem/error/question: there is no response in chat hub. i have try diff models, and restart the work space. its the same issue.

What is the error message (if any)? error on message

Please share your workflow

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

ScreenShot_2025-12-17_120250_430
ScreenShot_2025-12-17_120250_4302068×856 11 KB

Information on your n8n setup

  • n8n version: 2.1
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app): n8n cloud
  • Operating system: mac os
2

Hey Harry_Lee,

Happy to look more into this, but I think a bit more information is needed - could you share the name of your cloud instance or the instance ID (found under Help → About n8n) so that I could have a look on your logs?

3

Hi Jaakko,

thanks for the help! here is my instance ID 78fda1add35c93dc0024c98cb79ca18abaf100f2da4d66f7e1f7cf6b91bd719a

4

I think the issue you encountered was fix(editor): Select default Chat hub model to use from models allowed by settings by Cadiac · Pull Request #23348 · n8n-io/n8n · GitHub , the selected model “chatgpt-4o-latest” seen on your screenshot isn’t available using the free trial credentials, but due to that bug on 2.1.0 that model was still selected - fixed in 2.1.1 (but your current selection would probably stay even if you upgrade).

If you pick one of the available models using the model picker at top left corner under OpenAI I think that should hopefully unblock you!

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5

Thank you so much for the reply. I have updated to 2.1.1 version, and I have changed to different model OpenAI, Claude, and Gemini. It is still the same issue.