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LangChain’s OpenAI wrappers work when you point OPENAI_API_BASE to SynapsAI and set the API key. See Migrate from OpenAI for environment variable setup.

Legacy OpenAI LLM wrapper

Older LangChain versions use langchain_openai.OpenAI for completions-style models:
If LangChain throws errors about api_base, pass openai_api_base="https://api.synapsai.cloud/v1" directly to the model constructor, or ensure environment variables are set before import.

Embeddings

See Embeddings + FAISS for a retrieval example.