通过 Loopal API 调用 Loopal 支持的 LLM

curl https://model.loopal.app/v1/responses \
  -H "Authorization: Bearer $LOOPAL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "deepseek-v4-flash",
  "input": "Hello from Loopal",
  "stream": false
}'