openai-python/chatml.md at main · openai/openai-python.
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(This document is a preview of the underlying format consumed by
ChatGPT models. As a developer, you can use our [higher-level
API](https://platform.openai.com/docs/guides/chat) and won't need to
iteract directly with this format today — but expect to have the
option in the future!)
Traditionally, GPT models consumed unstructured text. ChatGPT models
instead expect a structured format, called Chat Markup Language
(ChatML for short).
ChatML documents consists of a sequence of messages. Each message
contains a header (which today consists of who said it, but in the
future will contain other metadata) and contents (which today is a
text payload, but in the future will contain other datatypes).
We are still evolving ChatML, but the current version (ChatML v0) can
be represented with our upcoming "list of dicts" JSON format as
follows:
```
[
{"token": "<|im_start|>"},
"system\nYou are ChatGPT, a large language model trained by OpenAI. Answer as concisely as possible.\nKnowledge cutoff: 2021-09-01\nCurrent date: 2023-03-01",
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2 March 2023 14:46
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