curl https://api.openai.com/v1/chat/completions -H 'Authorization: Bearer $OPENAI_API_KEY' -H 'Content-Type: application/json' -d '{"model":"gpt-4","messages":[{"role":"user","content":"hello"}]}'curl https://api.openai.com/v1/chat/completions -H 'Authorization: Bearer $OPENAI_API_KEY' -H 'Content-Type: application/json' -d '{"model":"gpt-4","messages":[{"role":"user","content":"hello"}]}'