Kumar Rajan I'm glad that your issue is resolved and thank you for posting your solution so that others experiencing the same thing can easily reference this!
Since the Microsoft Q&A community has a policy that the question author cannot accept their own answer, they can only accept answers by others, I'll repost your solution in case you'd like to Accept the answer.
Error Message:
My experience with Assistants thus far has been terrible. I created a Gpt4 assistant on the playground. I eventually want to add some text files and a couple of functions. But even without them it has been next to impossible to get a response for any question. Could this have to do with my pricing tier (I am on a $29/mo pricing tier)?
Solution:
As mentioned earlier, this could be a temporary issue. Trying after sometime or using a different region could resolve the issue.
If you have any other questions, please let me know. Thank you again for your time and patience throughout this issue.