curl https://g.uc0.cn/v1/responses \
-H "Authorization: Bearer sk-xxx" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.5",
"input": "Hello"
}'
/health /api/v1/auth/me /v1/models /v1/responses /responses /v1/messages /v1beta/models /antigravity/v1/messages /antigravity/v1beta/