How do I set up the V5 AI assistant, and how do I test if the setup was successful?

1. Go to the AI settings page (AI settings). 2. Confirm that "Enabled" is turned on. 3. Select the service you want to use in "AI provider", such as "ChatGPT" or "Claude". 4. Select the corresponding model in "Model", such as "GPT-4o" or "GPT-4o Mini". 5. Enter the corresponding API key in the "API Key" field. 6. After confirming the provider and model, click "Update settings" to save (note: saving will simultaneously send the provider and model, which will truly enable the function). 7. After saving, click "Test connection" to make a real call to the AI provider with the saved settings to verify that the connection is working properly. 8. If you need to disable the AI function, click "Disable".

You can ask the AI this way: "After I set up GPT-4o and clicked Test connection, I got an error. What could be the reason?" The AI might respond: "Please confirm that your API Key is correct and valid, that your account has sufficient usage quota, and that the selected Model is available in your OpenAI plan."