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AI · June 7, 2023

Open-source vector & data lake to debug, curate and version AI data

Hi HN! I’m Farah, co-founder of Dioptra.ai. We just open sourced katiML (https://github.com/dioptra-ai/katiml) this week and wanted to get your take. katiML is a vector+data lake to debug, curate and version AI data. With katiML, teams avoid the “garbage in, garbage out” effect by taking control over the quality of their data. They quickly and effectively curate high quality data for training, fine-tuning, and fixing hallucinations and edge cases. Features include: - Data Curation: interactive embedding visualization and similarity search, mislabeling and hallucination…

Open-source vector & data lake to debug, curate and version AI data launched on June 7, 2023 with 12 votes, #1,651 of 4,655 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.

In plain words

katiML is an open-source vector and data lake platform that helps teams manage and improve the quality of their AI training data. It provides interactive embedding visualization, similarity search, and tools to identify mislabeling and hallucinations in datasets. The platform enables data curation for training and fine-tuning models, includes explainability features to detect data drift and bias, and offers an efficient ML data lake for storing and querying vectors and metadata. It's designed for teams building AI systems who want to avoid poor outcomes from low-quality input data.

written from the facts on this page · September 2026

From the sources

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In the maker’s words, at launch

Hi HN! I’m Farah, co-founder of Dioptra.ai. We just open sourced katiML (https://github.com/dioptra-ai/katiml) this week and wanted to get your take. katiML is a vector+data lake to debug, curate and version AI data. With katiML, teams avoid the “garbage in, garbage out” effect by taking control…

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