Max tokens exceed the allowable limit for the model. Reduce the number of tokens to comply with the model's constraints.

To fix the 400 status error due to the max_tokens value exceeding the model's limit, you need to adjust your request parameters to comply with the model's constraints. Here are the key steps:

• Reduce the max_tokens value to 4096 or lower, which is the maximum allowed for the claude-2.0 model.

• Ensure all other parameters, such as temperature and top_p, are within their valid ranges.

• Verify that the "messages" field is correctly formatted and included in your request payload.

By making these adjustments, you can resolve the invalid_request_error and successfully execute your API request.