Privileged issue

• I'm a LangChain maintainer, or was asked directly by a LangChain maintainer to create an issue here.

Filing as a docs-contribution proposal per the contribution workflow.

Issue content

I'd like to add a docs notebook for Superlinked (SIE), a self-hosted inference engine for embedding, reranking, and extraction. The sie-langchain package (published on PyPI) provides drop-in LangChain components:

• SIEEmbeddings - implements LangChain's Embeddings interface (sync + async)
• SIEReranker - implements BaseDocumentCompressor, supports cross-encoder and ColBERT / late-interaction reranker models
• SIESparseEncoder - sparse encoder for hybrid-search integrations (e.g. Pinecone)

Superlinked exposes 85+ embedding models (dense, sparse, ColBERT / multivector) and cross-encoder rerankers through a single endpoint.

Proposed location

A new notebook at docs/docs/integrations/text_embedding/superlinked.ipynb on the v0.3 branch, following the same structure as the existing voyageai.ipynb, jina.ipynb, and cohere.ipynb pages in the same directory.

Draft PR

I already drafted the notebook and opened a PR (#36711) before seeing the require-issue-link policy. That PR was auto-closed. Once this issue is approved, happy to reopen and link it here.

Links

• Package: https://pypi.org/project/sie-langchain/
• Source: https://github.com/superlinked/sie
• Superlinked docs: https://superlinked.com/docs