Claude 长上下文与 PDF

import base64
import os
import anthropic
 
client = anthropic.Anthropic(base_url="https://api.ofox.ai/anthropic", api_key=os.environ["OFOX_API_KEY"])
pdf_b64 = base64.b64encode(open("invoice.pdf", "rb").read()).decode()
 
message = client.messages.create(
    model="anthropic/claude-haiku-4.5",
    max_tokens=1024,
    messages=[{"role": "user", "content": [
        {"type": "document", "source": {"type": "base64", "media_type": "application/pdf", "data": pdf_b64}},
        {"type": "text", "text": "这张发票的总金额是多少？"},
    ]}],
)
print(message.content[0].text)

import base64
import os
from openai import OpenAI
 
client = OpenAI(base_url="https://api.ofox.ai/v1", api_key=os.environ["OFOX_API_KEY"])
pdf_b64 = base64.b64encode(open("invoice.pdf", "rb").read()).decode()
 
resp = client.chat.completions.create(
    model="anthropic/claude-haiku-4.5",
    max_tokens=1024,
    messages=[{"role": "user", "content": [
        {"type": "file", "file": {"filename": "invoice.pdf", "file_data": f"data:application/pdf;base64,{pdf_b64}"}},
        {"type": "text", "text": "这张发票的总金额是多少？"},
    ]}],
)
print(resp.choices[0].message.content)