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EU AI Act · Article 4 active · Article 50 from 2 Aug 2026 · high-risk rules transition through 2027–2028
Active — Article 50 from 2 Aug 2026Direct AI Act obligation area

AI Transparency & Output Labelling

Article 50 transparency obligations apply from 2 August 2026, with a limited transition to 2 December 2026 for certain pre-existing systems and specific marking/detection duties.

WHAT TO REVIEW

Practical checkpoints

  • Disclose chatbot interaction to users
  • Machine-readable watermarking on generated assets
  • Detect deepfakes and synthetic content

Navigator mappings are a discovery aid. They do not establish that an organisation or system is legally in scope, compliant or certified.

HOW TO USE THIS PAGE

Start with the evidence

These software matches come from the requirement tags recorded in the Navigator catalogue. Review each vendor profile and its source evidence before making a procurement or compliance decision.

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MAPPED SOFTWARE

Tools recorded for this requirement

36 source-linked profiles currently mapped to this requirement.

Giskard

AI Evaluation & Testing

Open-source testing platform backed by European Commission grants for LLM red-teaming and automated vulnerability scanning.

Paris, France€0 / €490/moNavigator highlight

Saidot

AI Governance & Inventory

Nordic AI governance platform powering official public sector and enterprise transparency registers across the EU.

Helsinki, Finland€850/moNavigator highlight

Caralegal

AI Governance & Inventory

German-hosted privacy and AI register connecting GDPR records of processing with Article 50 transparency tracking.

Frankfurt, Germany€390/mo

Langfuse

AI Evaluation & Testing

Berlin-based open-source LLM observability platform providing continuous execution logging and trace audits in Frankfurt.

Berlin, Germany$0 / $59/mo

Holistic AI

AI Governance & Inventory

Independent AI risk management platform specialized in bias auditing, risk registries, and cross-border regulatory governance.

London, UK$1,500/moNavigator highlight

LangSmith

AI Evaluation & Testing

Developer-centric LLM observability platform providing automated tracing, regression evaluation, and runtime prompt logging.

San Francisco, USA$0 / $39/mo

CalypsoAI

AI Security & Guardrails

EU-headquartered GenAI gateway providing prompt scanning, credential redaction, and compliance policy enforcement.

Dublin, Ireland$1,200/mo

Fiddler AI

AI Evaluation & Testing

Enterprise observability platform providing explainable AI (XAI), fairness metrics, and production drift telemetry.

Palo Alto, USA$1,200/mo

Arize AI

AI Evaluation & Testing

AI evaluation and observability platform tracking embedding drift, real-time evals, and prompt telemetry.

San Francisco, USA$0 / $500/mo

TruEra

AI Evaluation & Testing

AI quality management suite evaluating explainability, relevance, and hallucination scores across LLMs and predictive ML.

Redwood City, USA$800/mo

Truepic

AI Security & Guardrails

Enterprise digital provenance platform certifying image and video authenticity via secure hardware-rooted C2PA metadata.

San Diego, USA$500/mo

Arthur AI

AI Evaluation & Testing

Model monitoring and governance engine offering real-time prompt risk scoring, hallucination tracking, and bias evaluation.

New York, USA$1,250/mo

Patronus AI

AI Evaluation & Testing

Automated LLM evaluation platform specializing in hallucination scoring, copyright exposure detection, and enterprise safety benchmarking.

New York, USA$900/mo

Braintrust

AI Evaluation & Testing

Enterprise-grade evaluation engine providing fast automated testing, scoring loops, and production AI telemetry.

San Francisco, USA$0 / $249/mo

Armur AI

AI Security & Guardrails

API gateway protecting GenAI applications against jailbreaking, malicious prompts, and unauthorized output leaks.

Wilmington, USA$300/mo

TrueMedia.org

AI Security & Guardrails

Non-profit forensic engine analyzing political media and video uploads to detect generative synthetic manipulation.

Seattle, USAFree / Non-Profit

Guardrails AI

AI Security & Guardrails

Open-source framework enforcing structural, type, and quality specifications on LLM outputs using customizable validators.

San Francisco, USA$0 / $499/mo

Aimon AI

AI Evaluation & Testing

Continuous observability and safety API evaluating LLM hallucination, instruction drift, and factual alignment.

San Francisco, USA$0 / $199/mo

Enkrypt AI

AI Security & Guardrails

AI security and compliance platform providing red teaming, runtime guardrails, policy enforcement, monitoring and audit-ready evidence.

Brighton, USA$0 / $149/mo

Layerup AI

AI Security & Guardrails

Developer security gateway detecting prompt injections, redacting PII, and logging LLM security events in real time.

San Francisco, USA$0 / $250/mo

TrustLab

AI Security & Guardrails

Safety and compliance platform tracking digital risks, synthetic media dissemination, and compliance with EU online safety mandates.

San Francisco, USA$1,500/mo

Guardia AI

AI Governance & Inventory

Italian AI and privacy compliance software linking GDPR processing registers with EU AI Act risk categorizations.

Milan, Italy€800/mo

Context.ai

AI Evaluation & Testing

Product analytics and user interaction tracking platform for LLM applications, monitoring conversation drop-offs and sentiment drift.

London, UK$0 / $299/mo