Semlib – Semantic Data Processing

In plain words

Semlib is a semantic data processing tool designed for developers and data professionals who need to work with structured information. It provides functionality for parsing, analyzing, and transforming data using semantic concepts. The software is open-source and available on GitHub, making it accessible to technical users who want to integrate semantic processing into their workflows or projects.

written from the facts on this page · September 2026

From the sources

Semlib is a Python library for building data processing and data analysis pipelines that leverage the power of large language models (LLMs). Semlib provides, as building blocks, familiar functional programming primitives like map , reduce , sort , and filter , but with a twist: Semlib's implementation of these operations are programmed with natural language descriptions rather than code. Under the hood, Semlib handles complexities such as prompting, parsing, concurrency control, caching, and cost tracking. >>> presidents = await prompt( ... " Who were the 39th through 42nd presidents of the United States? " , ... return_type = Bare(list[ str ]) ... ) >>> await sort(presidents, by = "…from github.com

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  Semcheck – AI Tool for checking implementation follows spec2025 · github.com · ▲19

  Hi HN, like many I've been interested in the direction software engineering is taking now that coding LLMs are becoming prevalent. It seems that we're not quite there for "natural language programming", but it seems new abstractions are already starting to form. In order to explore this further I've built semcheck (semantic checker). It's a simple cli tool that can be used in CI or pre-commit to check that your implementation matches your specification using LLMs. The inspiration came while I was working on another project where I needed a data structure for a GeoJSON object, I passed Claude…

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  LLM, a Rust Crate/CLI for CPU Inference of LLMs (LLaMA, GPT-NeoX, etc.)2023 · github.com · ▲45

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  SemHash – Fast Semantic Text Deduplication for Cleaner Datasets2025 · github.com · ▲19

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