Getting token exceed error while using OpenAI API

I am trying to fetch data from the CSV file via OpenAI API but I am getting an error as token exceed. I have used both GPT-3.5 turbo and all the version of GPT-4 model to check on that.

Is there any changes what I need to do in the prompt or should I use some other method to reduce the size of the token. I have also set the maximum token to 2500. I am using Swagger to check my end point request

[Route("AskQuestionCsv")]
public async Task<IActionResult> AskQuestionCsv([FromBody] string question)
{
    if (string.IsNullOrWhiteSpace(extractedCsvText))
    {
        return BadRequest(new { Message = "No CSV content available. Please upload a CSV file first." });
    }

    if (string.IsNullOrWhiteSpace(question))
    {
        return BadRequest(new { Message = "Question cannot be empty." });
    }

    try
    {
        var openai = new OpenAIAPI("API_KEY");
        var chatRequest = new ChatRequest
        {
            Model = "gpt-4", 
            Temperature = 0.7,
            MaxTokens = 25000,
            Messages = new List<ChatMessage>
            {
                new ChatMessage
                {
                    Role = ChatMessageRole.System,
                    Content = "You are a helpful assistant."
                },
                new ChatMessage
                {
                    Role = ChatMessageRole.User,
                    Content = $"Based on the following text from the CSV file, answer the question.\n\nCSV Text:\n{extractedCsvText}\n\nQuestion: {question}"
                }
            }
        };

        var chatResponse = await openai.Chat.CreateChatCompletionAsync(chatRequest);
        var answer = chatResponse.Choices.FirstOrDefault()?.Message.Content.Trim();

        return Ok(new { Question = question, Answer = answer });
    }
    catch (Exception ex)
    {
        return StatusCode(500, new { Message = "ERROR: " + ex.Message }
    }

Error:

Error at chat/completions (https://api.openai.com/v1/chat/completions) with HTTP status code: TooManyRequests. Content: {\n "error": {\n "message": "Request too large for gpt-4 in organization org-uedxqeR1FzNcdHx3MOuawI9d on tokens per min (TPM): Limit 10000, Requested 6668686. The input or output tokens must be reduced in order to run successfully. Visit https://platform.openai.com/account/rate-limits to learn more.",\n "type": "tokens",\n "param": null,\n "code": "rate_limit_exceeded"\n }\n}\n