dify - 💡(How to fix) Fix Visual model support error

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Dify version

Dify UI

Cloud or Self Hosted

Cloud

Steps to reproduce

The visual model used to process ChatGPT cannot be used with other visual models such as Zhipu and Tongyi in the LLM operator. It throws the error req_id: 2912558781 PluginInvokeError: {"args":null,"error_type":"PluginDaemonInnerError","message":"Error sending request to serverless: all 3 attempts failed, last error: attempt 3/3 failed with status code: 502"}.

<img width="391" height="172" alt="Image" src="https://github.com/user-attachments/assets/cbe5c13e-c49b-45be-a16c-714838da1afc" />

✔️ Expected Behavior

Currently, the Chatgpt-4o model works without errors and can detect image content correctly. I now need support for intelligent spectroscopic and generalized visual models.

❌ Actual Behavior

It throws the error req_id: 2912558781 PluginInvokeError: {"args":null,"error_type":"PluginDaemonInnerError","message":"Error sending request to serverless: all 3 attempts failed, last error: attempt 3/3 failed with status code: 502"}.