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[ARTICLE · art-41702] src=openzl.org ↗ pub= topic=ai-infrastructure verified=true sentiment=↑ positive

OpenZL

OpenZL, a new compression library, achieves high compression ratios while maintaining high speed by generating specialized compressors for specific data formats, outperforming generic compressors like zstd. It is designed for engineers handling large datasets, such as AI workloads, and includes a universal decompressor.

read1 min views1 publishedJun 27, 2026

OpenZL delivers high compression ratios while preserving high speed, a level of performance that is out of reach for generic compressors.

OpenZL takes a description of your data and builds from it a specialized compressor optimized for your specific format. Learn how it works →

OpenZL consists of a core library and tools to generate specialized compressors — all compatible with a single universal decompressor. It is designed for engineers that deal with large quantities of specialized datasets (like AI workloads for example) and require high speed for their processing pipelines.

Here are some examples:

SAO, part of theSilesia Compression Corpus: |

|---|

[zstd](https://github.com/facebook/zstd)-3

x2.06203 MB/s822 MB/s The result: much stronger ratios than generic compressors, at the speeds required by datacenter workloads.

Want to try it yourself? Get started in minutes with the Quick start guide

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