Since OpenAI created APIs that allow developers to utilize GPT-3 and GPT-4 language models, certain tools like langChain have also flourished. What is their add

Since OpenAI created APIs that allow developers to utilize GPT-3 and GPT-4 language models, certain tools like langChain have also flourished. What is their added value? They provide simple and common abstractions to enable developers to experiment with large language models (LLMs), not just those from OpenAI, but also from Cohere, Anthropic, and so on. These tools or modules also allow developers to incorporate specialized vector stores, which are particularly useful for storing word embeddings. The vectorization of words is crucial as it facilitates the training of language models like GPT by mitigating the curse of dimensionality.