Research + corpus-building uses. Benchmarks don’t count.
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DRAWER I
AI & History
Machine learning, vision-language models and speech models. Every card here carries notes on where your sources go, how it was tested, and how it fails.
Guide cards
Counts research and corpus-building uses in the window, plus “I’m using this now” check-ins. Benchmarks don’t count.
tool · No. 013AI
Kraken
The open-source recognition engine behind eScriptorium, run from the command line. Built for historical and non-Latin material, including right-to-left scripts.
At a glance
Maker
Benjamin Kiessling (EPHE–PSL, Inria)
Released
2015
Licence
Open source (Apache-2.0)
Cost
Free
Runs
Your own machine (Linux, macOS)
Skill
Programming
Historian’s notes
Where your sources goFully local.
How it’s been tested96.9% character accuracy on Hebrew and 98.2% on medieval Latin manuscripts (DH2019); 97.6–99.2% on classical Arabic print.
Known problems on historical sourcesCommand line only; models must be downloaded or trained. Low-resolution images and curved lines raise error rates. Windows not supported.
Used in research0
No published research uses found yet. Using it in a project? Tell us.
Nobody has said they’re using it in 2026 yet.
“I’m using this now” asks you to sign in with ORCID.
One count per person per year; it adds to Trending, and names are never shown.