Claude PDF Support
As of March 23, 2026, Crazyrouter production has verified that claude-sonnet-4-6 can read a Base64 PDF through the native Messages API and return a text summary.
Verified Minimal Request
curl https://crazyrouter.com/v1/messages \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-d '{
"model": "claude-sonnet-4-6",
"max_tokens": 512,
"messages": [
{
"role": "user",
"content": [
{
"type": "document",
"source": {
"type": "base64",
"media_type": "application/pdf",
"data": "JVBERi0xLjQK..."
}
},
{
"type": "text",
"text": "Summarize the document in one sentence."
}
]
}
]
}'
Observed production response shape:
{
"model": "claude-sonnet-4-6",
"content": [
{
"type": "text",
"text": "The document is a simple Crazyrouter PDF test document..."
}
]
}
This page keeps only the Base64 PDF path that was revalidated successfully. Remote URLs, multi-PDF comparison, and streamed PDF output were not rechecked item by item in this pass.