curiosity-ai / catalyst
🚀 Catalyst is a C# Natural Language Processing library built for speed. Inspired by spaCy's design, it brings pre-trained models, out-of-the box support for training word and document embeddings, and flexible entity recognition models.
Why this job: works in the areas we cover, but does not say which job it does
What it does
- Fast, modern pure-C# NLP library, targeting .NET 9 and .NET 10
- Cross-platform, runs anywhere .NET core is supported - Windows, Linux, macOS and even ARM
- Non-destructive tokenization, >99.9% RegEx-free, >1M tokens/s on a modern CPU
- Named Entity Recognition (gazeteer, rule-based & perceptron-based)
- Pre-trained models based on Universal Dependencies project
Get started
No single install command. Read the steps in the README (opens in new tab)
- Maintenance
- Active
- Last commit 35 days ago
- Stars
- 863
- +2 this week
- Licence
- MIT
- Allows business use
- Downloads for
- None listed
- No release files
- Latest version
- None yet
- No releases
- Built with
- C#
- 100% of the code
Is it looked after?
- Contributors
- 2
- Last 90 days
- Issues
- 62% closed
- 41 still open
- Pull requests
- 38 merged
- 11 waiting
- Releases
- None
- Never published
- Contributing guide (opens in new tab)
- No security policy
- No code of conduct
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More: languages, topics, project record and preview image
Languages
- C# 100%
Topics
- ai
- artificial-intelligence
- csharp
- embeddings
- machine-learning
- natural-language-processing
- natural-language-understanding
- nlp
Project record
- JobOther AI tools
- StatusListed
- Commits442
- Forks86
- Watching37
- Stars in 28 days+3
- CreatedAug 4, 2019
- First seen by usNov 7, 2026
- CheckedNov 7, 2026