Fix InvalidRequestError

✅ Solution

InvalidRequestError in autogen often arises from specifying a model name that's either nonexistent or inaccessible to your OpenAI API key. Ensure the model name exists (e.g., "gpt-4", "gpt-3.5-turbo") and that your OpenAI API key has permission to access the specified model; upgrade your OpenAI account if necessary to access newer models or specific features. Also, verify that the OpenAI library version you are using supports the model you are requesting.