LitmusAI
Screens any AI system description against the eight Article 5 prohibitions and returns per-category Red / Amber / Clear verdicts with regulatory citations, confidence levels, and remediation guidance. Conservative-by-default: prefers Amber over Clear on ambiguity. UNREVIEWED reference ruleset; signed BYO rulesets supported. Apache 2.0, zero network calls, runs entirely offline. The PyPI distribution is `litmus-screener` (the brand is "LitmusAI"; an unrelated `litmus-ai` package already exists on PyPI).
LitmusAI is Apache 2.0, free to use commercially, with zero telemetry. Source: Regulation (EU) 2024/1689 (Article 5).
Why LitmusAI exists
Prohibited AI practices
Article 5 has been enforceable since 2 February 2025 — placing or using a prohibited-practice AI system on the EU market today exposes the provider, importer, distributor, or deployer to the highest tier of fines in the regulation: up to €35M or 7% of global annual turnover under Article 99(3). The eight prohibitions are absolute — no consent, opt-out, or post-hoc mitigation rescues a prohibited practice once the system meets the prohibition's criteria. Pre-deployment screening before code is shipped is the only defensible posture.
When the findings land on a governance desk
Tools surface problems. Programmes solve them.
LitmusAI produces audit-ready evidence. The next step — programme design, board narrative, regulator engagement — is the surface AskAjay covers, the advisory arm of AI Exponent LLC.
Explore advisory at AskAjay.ai →Other AiExponent flagship tools