Catalogue of Tools & Metrics for Trustworthy AI

These tools and metrics are designed to help AI actors develop and use trustworthy AI systems and applications that respect human rights and are fair, transparent, explainable, robust, secure and safe.

Ster



Ster is an open-source representation/activation engineering framework for LLMs, intended to stop harmful outputs/hallucinations by intervening at the level of activations. The repository’s core stated purpose is directly about making LLM outputs safer (reducing harmful outputs and hallucinations).  A practitioner could use the framework during deployment or evaluation of an LLM to apply activation-level interventions, thereby improving safety/robustness of model outputs. It may also support transparency/inspectability by exposing/operating on internal representations (activations), which can be used to understand and debug why certain outputs are blocked.
 

Auto-discovered on 2026-08-12 by OECD Catalogue Automation

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Disclaimer: The tools and metrics featured herein are solely those of the originating authors and are not vetted or endorsed by the OECD or its member countries. The Organisation cannot be held responsible for possible issues resulting from the posting of links to third parties' tools and metrics on this catalogue. More on the methodology can be found at https://oecd.ai/catalogue/faq.