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ChatHub is a multi-model AI client that can compare answers from different models side by side. AIHubMix can be connected through ChatHub’s OpenAI-compatible custom API key settings.

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Install and Configure AIHubMix

  1. Install the ChatHub extension from the Chrome Web Store: ChatHub - ChatGPT, Gemini, Claude sidebar.
  2. Open ChatHub, click the gear icon in the lower-left corner, find Use your own API key, enable OpenAI, and click configure.
ChatHub API key settings
  1. Fill in the AIHubMix connection fields:
  • API Key: the key created in the AIHubMix console, usually in the sk-*** format.
  • API Host: use the AIHubMix gateway. If the primary domain is unavailable, replace it with https://api.inferera.com and keep the path behavior unchanged.
  • Model: choose or enter the model ID you want to use, for example gpt-5.5. Click Confirm, then return to settings and click Save changes.
ChatHub API key and API Host
  1. Return to the ChatHub main page. You should see the enabled AIHubMix configuration on the left, then send a short message to verify that the model replies normally.
ChatHub verify AIHubMix reply

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Troubleshooting

No response after saving: check that the API key starts with sk-, the API Host is https://aihubmix.com without a trailing slash, and the AIHubMix account has enough balance. Model not found: copy the model ID from the AIHubMix model list and paste it into ChatHub again.
Last updated: 2026-07-03