{
  "messages": [{"role": "user", "content": "Count to 5"}],
  "stream": true
}

data: {"choices":[{"delta":{"role":"assistant"}}]}

data: {"choices":[{"delta":{"content":"1"}}]}

data: {"choices":[{"delta":{"content":"."}}]}

data: {"choices":[{"delta":{"content":" One"}}]}

data: [DONE]

import json
import httpx

def stream_chat(message: str):
    with httpx.Client(timeout=120.0) as client:
        with client.stream(
            "POST",
            "https://hetty.cfosilvia.com/v1/chat/completions",
            json={"messages": [{"role": "user", "content": message}], "stream": True}
        ) as response:
            for chunk in response.iter_text():
                for line in chunk.split("\n"):
                    if not line.startswith("data: "):
                        continue
                    
                    data = line[6:]  # Remove "data: " prefix
                    if data == "[DONE]":
                        return
                    
                    parsed = json.loads(data)
                    content = parsed["choices"][0].get("delta", {}).get("content", "")
                    if content:
                        print(content, end="", flush=True)

content_parts = []
for chunk in response.iter_text():
    # ... parse as above ...
    if content:
        content_parts.append(content)

full_response = "".join(content_parts)

{
  "id": "chatcmpl-abc123",
  "object": "chat.completion.chunk",
  "choices": [{
    "index": 0,
    "delta": {
      "content": "Hello"      // Only present fields are included
    },
    "finish_reason": null     // "stop" on last chunk
  }]
}