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PromptLayer | 🦜️🔗 LangChain

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PromptLayer is a platform for prompt engineering. It also helps with the LLM observability to visualize requests, version prompts, and track usage.

While PromptLayer does have LLMs that integrate directly with LangChain (e.g. PromptLayerOpenAI), using a callback is the recommended way to integrate PromptLayer with LangChain.

To work with PromptLayer, we have to:

• Create a PromptLayer account
• Create an api token and set it as an environment variable (PROMPTLAYER_API_KEY)

Install a Python package:

See a usage example.

import promptlayer  
from langchain.callbacks import PromptLayerCallbackHandler

See a usage example.

from langchain_community.llms import PromptLayerOpenAI

See a usage example.

from langchain_community.chat_models import PromptLayerChatOpenAI

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