PDF file as text not supported?

API
,
1

Trying to send a pdf as base 64 text but getting this error. Is pdf not yet working or is there something not right in my request?

============
{
“error”: {
“message”: “Invalid Value: ‘file’. This model does not support file content types.”,
“type”: “invalid_request_error”,
“param”: “messages[0].content[1].type”,
“code”: “invalid_value”
}
}

Message sent to gpt-4.1-2025-04-14 using the completion API:

{
“max_completion_tokens”: 16384,
“messages”: [
{
“content”: [
{
“text”: “This is the content of document Austenic.pdf”,
“type”: “text”
},
{
“file”: {
“file_data”: “data:application/pdf;base64,snip”,
“filename”: “Austenic.pdf”
},
“type”: “file”
},
{
“text”: “describe”,
“type”: “text”
}
],
“role”: “user”
}
],
“model”: “gpt-4.1-2025-04-14”,
“reasoning_effort”: “high”,
“store”: false,
“stream”: false,
“temperature”: 1
}

2

Did you have any intention of actually adding the PDF file contents with an f-string?..

"file_data": f"data:application/pdf;base64,{pdf_files_list_b64[0]}"

from openai import OpenAI
client = OpenAI()

response = client.chat.completions.create(
  model="gpt-4.1-2025-04-14",
  messages=[
    {
      "role": "system",
      "content": [
        {
          "type": "text",
          "text": "A helpful and honest assistant"
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "What are the price ratios between gpt-4.1 AI model sizes?"
        },
        {
          "type": "file",
          "file": {
            "file_data": "data:application/pdf;base64,JVBERi0xLjMKJcfsj6IKNSAwIG9iago8PC9MZW5ndGggNiAwIFIvRmlsdGVyIC9GbGF0ZURlY29kZT4+CnN0cmVhb///////wMDAgbiAKMDAwMDAwMDQzOCAwMDAwMCBuIAowMDAwMDAwNTM4IDAwMDAwIG4gCjAwMDAwMDA0NzkgMDAwMDAgbiAKMDAwMDAwMDUwOCAwMDAwMCBuIAp0cmFpbGVyCjw8IC9TaXplIDExIC9Sb290IDEgMCBSIC9JbmZvIDIgMCBSCi9JRCBbPDlERThEOTdEODhBQzZGNEZDNTgyNUQ4RjM4M0M0NzBCPjw5REU4RDk3RDg4QUM2RjRGQzU4MjVEOEYzODNDNDcwQj5dCj4+CnN0YXJ0eHJlZgoxMjc1NzAyCiUlRU9GCg==",
            "filename": "test2.pdf"
          }
        }
      ]
    },
  ],
  max_completion_tokens=2048,
  top_p=0.5,
)

reasoning_effort is also not a supported parameter for that model.

update openAI library if using.

3 Likes
3

ticking off reasonning fixed it! Thanks,

2 Likes
4

im literally doing this but somehow still not working

rc/consumers/application-document-consumer.ts:204:9) {
  status: 400,
  headers: {
    'apim-request-id': '6efeb34e-7686-4577-af70-b3b843466936',
    'content-length': '218',
    'content-type': 'application/json',
    date: 'Mon, 16 Jun 2025 05:09:50 GMT',
    'strict-transport-security': 'max-age=31536000; includeSubDomains; preload',
    'x-content-type-options': 'nosniff',
    'x-ms-deployment-name': 'gpt-4o',
    'x-ms-rai-invoked': 'true',
    'x-ms-region': 'Japan East',
    'x-ratelimit-limit-requests': '4500',
    'x-ratelimit-limit-tokens': '450000',
    'x-ratelimit-remaining-requests': '4499',
    'x-ratelimit-remaining-tokens': '448927',
    'x-request-id': 'a6f7d2fc-005b-4289-baad-1edd928612e5'
  },
  request_id: 'a6f7d2fc-005b-4289-baad-1edd928612e5',
  error: {
    message: "Invalid Value: 'file'. This model does not support file content types.",
    type: 'invalid_request_error',
    param: 'messages[0].content[1].type',
    code: 'invalid_value'
  },
  code: 'invalid_value',
  param: 'messages[0].content[1].type',
  type: 'invalid_request_error'
}

using it through azure

5

On Azure you will need to specify the latest preview API version available in order to get API parameters that keep pace with OpenAI.

6

Did you get it running? I just tried it with API version 2025-04-01-preview on azure and got the same error as M_Afifudin_Abdullah. Which API version did you use?

7

I don’t think azure supports pdf uploads from what I’ve seen, even on 2025-04-01-preview , it doesn’t work and there is no evidence of it being supported. Ignore @_j

1 Like