### LangChain Example for OpenAI Integration

Source: https://context7.com/petroivaniuk/llms-tools/llms.txt

Demonstrates a basic setup for using LangChain with OpenAI models. It requires the 'langchain' and 'openai' libraries to be installed. This snippet shows how to initialize an LLMChain with a prompt template.

```python
# LangChain - Framework for LLM applications
# https://github.com/langchain-ai/langchain
from langchain import LLMChain, PromptTemplate
from langchain.llms import OpenAI

# LlamaIndex - Build agents over your data
# https://github.com/jerryjliu/llama_index

# DSPy - Declarative AI software framework
# https://dspy.ai/

# AutoGen - Multi-agent AI applications
# https://microsoft.github.io/autogen/

# smolagents - Simple agentic capabilities
# https://huggingface.co/blog/smolagents

# aisuite - Unified interface to multiple AI providers
# https://github.com/andrewyng/aisuite

```

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