How to get started with LangChain?

Questions
1

Hello everybody,

I am trying to understand these lang chain nodes since while, but I just don’t get it. Some of them have system prompts I can enter, some of them have not.

Some have a prompt and user prompt and system prompt where I don’t know why, like the “Basic LLM Chain”.

Does anyone knows an good how to start guide?

SCR-20240603-mwsc-2
SCR-20240603-mwsc-2846×1614 79 KB

2

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3

The initial message you notated would be the default user prompt. The rest allows for system or assistant (or others depending on model) prompts to be setup. System and assistant prompts are essentially the same, defining the bots role and format etc. The user prompt is the input from you for your request to the model.

You can, for various reasons, also input more user prompts as well, perhaps like a pre or post stage.

4

Thanks.

Do you know any good tutorials? I did watch the ones on YouTube but I still have @ManyQuestions xD

5

Hi,

It’s in Portuguese, but maybe this YouTube playlist of Autotic might give you some help https://youtube.com/playlist?list=PL6WacTcxV8LN_dosN51BR92PYjwch0l99&si=nNS9s413LUxUnn5L

6

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