file type for PDF Multimodal support

[EAG08]

This appears to be supported via the API, but not from the python SDK https://openrouter.ai/docs/guides/overview/multimodal/pdfs

import base64
from openrouter import OpenRouter


def encode_pdf_to_base64(pdf_path):
    """Read a PDF file and encode it to base64 data URL."""
    with open(pdf_path, 'rb') as pdf_file:
        pdf_data = pdf_file.read()
        base64_encoded = base64.b64encode(pdf_data).decode('utf-8')
        return f"data:application/pdf;base64,{base64_encoded}"


def process_pdf(pdf_path, prompt="What is in this PDF?", model="anthropic/claude-sonnet-4.5"):
    """
    Send a PDF to OpenRouter and get a response.

    Args:
        pdf_path: Path to the local PDF file
        prompt: Question or instruction about the PDF
        model: Model to use for processing

    Returns:
        Response content from the model
    """
    pdf_data = encode_pdf_to_base64(pdf_path)
    filename = os.path.basename(pdf_path)

    with OpenRouter(api_key=os.getenv("OPENROUTER_API_KEY")) as client:
        # Try using the REST API format directly
        response = client.chat.send(
            model=model,
            messages=[
                {
                    "role": "user",
                    "content": [
                        {"type": "text", "text": prompt},
                        {
                            "type": "file",
                            "file": {
                                "filename": filename,
                                "file_data": pdf_data
                            }
                        }
                    ]
                }
            ]
        )

        return response.choices[0].message.content


if __name__ == "__main__":
    pdf_file = "example.pdf"
    result = process_pdf(pdf_file, "Summarize this document")
    print(result)

Input tag 'file' found using <lambda>() does not match any of the expected tags: 'text', 'image_url', 'input_audio', 'input_video', 'video_url' [type=union_tag_invalid, input_value={'type': 'file', 'file': ...lZgoyMjE2ODEKJSVFT0YK'}}, input_type=dict]