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@abdurrahmanbutler abdurrahmanbutler commented Oct 23, 2025

Proposed Changes

Add a new integration entry for Isaacus (external, vendor-maintained) to the website.

  • New page: integrations/isaacus.md
    • Front matter includes repo, pypi, report_issue, and logo
    • Overview, Installation, Components, and Quick Example sections
  • New asset: logos/isaacus.png (logo for the listing)

How did you test it?

  • Markdown preview in GitHub:
    • Verified anchors (#installation, #components, #quick-example) and external links
    • Confirmed logo path renders
  • Code snippet verification:
    • pip install isaacus-haystack
    • Ran the example with InMemoryDocumentStore + InMemoryEmbeddingRetriever
    • Confirmed non-zero retrieval scores and expected embedding dimensions

Notes for the reviewer

Isaacus recently launched the Kanon 2 Embedder, an English language legal specialised embedding model that is the best performing model on the Massive Legal Embedding Benchmark.

We are submitting this pull request to extend support for the model to Haystack via an integration of our API and model.

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