Add sentence-transformers

[DevVettel]

Project

sentence-transformers

Checklist

• I read CONTRIBUTING.md - awesome-python is a shortlist, not a catalog
• One project per PR
• PR title format: Add project-name
• Entry format: - [pypi-name](https://github.com/owner/repo) - Description ending with period.
• Display name is the PyPI package name
• Placed in an existing use case (new sections and subcategories are maintainer-only)
• Meets all Quality Requirements: active, stable, documented, at least 1 month old

Which Tier

• Obvious choice - a tool an experienced Python developer would name when asked "what do I use for this?"
• Challenger

Explain: sentence-transformers is the default Python library for computing text embeddings and for retrieval/reranking with pretrained models. It is what most RAG and semantic-search tutorials use for local embeddings.

• 22.3M downloads/month (for comparison, transformers has 96.3M and is the only current entry in this use case)
• Maintained under the huggingface org, 19k stars, last push 2026-10-08, not archived, created 2019
• PyPI classifier is Production/Stable (v6.1.0)

Displacement

Not needed. AI and Agents > Pre-trained Models currently has 1 entry. It is placed after transformers following the downloads ordering.

Note: an earlier PR (#2625) was closed on 2026-01-08 in the bulk close of open PRs, not on its merits.

Evidence fetched 2026-10-09: downloads from pypistats.org recent (last_month), repo state from the GitHub API. make test passes (142 passed).

🤖 Generated with Claude Code

[Masi452]

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