stream=true returns improper response format

[kwekewk]

When using the stream=true parameter, the structure response format is incorrect compared to when stream=false. Some apps give error

Steps to reproduce

1. Send request with stream=false

   --data-raw '{"messages":[{"role":"user","content":"sayyes"}],"model":"gpt-3.5-turbo","temperature":1,"presence_penalty":0,"top_p":1,"frequency_penalty":0,"stream":false}'    

Response:

{"id":"chatcmpl-CuQKKLmyuGrdzaiqxQefJCyJetvrV","object":"chat.completion","created":1689148811,"choices":[{"index":0,"message":{"role":"assistant","content":"Yes! How may I assist you today?","name":""},"finish_reason":"stop"}],"usage":{"prompt_tokens":0,"completion_tokens":0,"total_tokens":0}}

2. Send request with stream=true

   --data-raw '{"messages":[{"role":"user","content":"sayyes"}],"model":"gpt-3.5-turbo","temperature":1,"presence_penalty":0,"top_p":1,"frequency_penalty":0,"stream":true}'

Response:

data: {"choices":[{"delta":{"role":"assistant"},"finish_reason":null,"index":0}],"created":1689149092,"id":"chatcmpl-nuNuoobJbxsRfrJgenDXhsIJJDptP","model":"gpt-3.5-turbo","object":"chat.completion.chunk"}  

data: {"choices":[{"delta":{"content":"Yes! "},"finish_reason":null,"index":0}],"created":1689149093,"id":"chatcmpl-nuNuoobJbxsRfrJgenDXhsIJJDptP","model":"gpt-3.5-turbo","object":"chat.completion.chunk"}

Expected behavior

The response format should be consistent whether stream is true or false.

[juzeon]

The response differs when the "stream" parameter is set to either true or false. Please refer to the following link for more information: https://github.com/openai/openai-cookbook/blob/main/examples/How_to_stream_completions.ipynb