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Show HN: Autoretrieval – Autoresearch for RAG Pipelines

Hacker News - Tue, 07/21/2026 - 2:06pm

Hi, inspired by Andrej Karpathy's autoresearch, I built autoretrieval, a small framework that lets an AI agent improve a RAG pipeline by running experiments against an evaluation dataset.

The agent edits the retrieval pipeline, runs an eval, checks whether the F-beta score improved, keeps or discards the change, and repeats. It can try different chunking strategies, chunk sizes, the number of retrieved chunks, embedding models, keyword retrieval, and more, while keeping a log of every experiment.

The repo also includes a script that generates question and reference-highlight pairs from any document collection. This makes it possible to optimize a RAG pipeline for domain-specific data.

On one of my own RAG pipelines, it more than doubled the F3 score after a few hours of running experiments.

I'd love to hear any feedback or ideas.

Comments URL: https://news.ycombinator.com/item?id=48995907

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Categories: Hacker News

Cisco Launches Low-Cost AI Models for Source Code Security

Security Week - Tue, 07/21/2026 - 1:44pm

The open-weight Antares models are designed to pinpoint known vulnerabilities in codebases faster and at a fraction of the cost of larger AI models.

The post Cisco Launches Low-Cost AI Models for Source Code Security appeared first on SecurityWeek.

Categories: SecurityWeek

Mark Papermaster says Europe’s commitment to interoperability and diversity of supply could become a strategic advantage as AI infrastructure grows more heterogeneous

Computer Weekly Feed - Tue, 07/21/2026 - 1:16pm
Mark Papermaster says Europe’s commitment to interoperability and diversity of supply could become a strategic advantage as AI infrastructure grows more heterogeneous
Categories: Computer Weekly

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