curl "https://api-beta-vlm.jina.ai/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $JINA_API_KEY" \
  -d @- <<EOFEOF
{
  "model": "jina-vlm",
  "stream": true,
  "messages": [
    { "role": "user", "content": "Describe this image" }
  ]
}
EOFEOF