AI security 2025: How Anthropic is setting new standards with Constitutional Classifiers

The development of safe and reliable AI models is one of the greatest challenges of our time. With the introduction of “Constitutional Classifiers”, the AI startup Anthropic has made an important contribution to the race for the security of large language models. This new technology promises to revolutionize the way chatbot jailbreaks are handled and opens up exciting prospects for the use of AI in everyday life.

What makes Constitutional Classifiers so special?

The idea behind the Constitutional Classifiers is based on the concept of Constitutional AI. Here, ethical, legal and moral principles are integrated directly into the architecture of the AI models. The method makes it possible to make AI systems more robust against attacks such as jailbreaks – a problem that has often caused security vulnerabilities in the past.

A central aspect of this approach is the generation of synthetic data, which makes it possible to be prepared for a wide range of malicious attacks. With over 10,000 prompt variations, including those in multiple languages and styles, this ensures that the models cover a wide range of attack vectors. This is a remarkable step towards comprehensively securing AI systems while remaining flexible for future challenges.

Successes in practical testing

The implementation of the Constitutional Classifiers shows impressive results:

  • Over 4,300 hours of testing by security experts and 405 participants resulted in a significant reduction in the success rate of jailbreak attacks. Without this system, the success rate was 86%, while with Constitutional Classifiers it slipped to just 4.4%.
  • It is also interesting to note that the impact of these security measures on normal, harmless requests remains minimal. In practice, the rejection rate for legitimate prompts only increased by 0.38%, which means that the user experience remains optimized.

The real-world test with actual user requests underlines that this technology is marketable: 95% of malicious interactions were successfully blocked. At the same time, the inference performance remains within limits with a moderate additional load of 23.7% – a balance between security and efficiency.

A market on the move: important implications for the industry

The introduction of Constitutional Classifiers not only brings technical advantages, but also sets new standards within the AI industry. With safety mechanisms that incorporate ethical guidelines such as the Universal Declaration of Human Rights, a forward-looking approach is emerging that could strengthen trust in AI-based products.

The flexibility of the adaptable constitution, which can react specifically to new attack vectors, also represents a decisive competitive advantage. Competitors such as OpenAI, Google or Microsoft could come under pressure to introduce similar security solutions as a result of this development. However, the question of the scalability and efficiency of such systems remains central, especially as AI is increasingly being integrated into sensitive applications such as medicine, law or education.

The most important facts about the update

  • Safety principles: Models are based on ethical guidelines, e.g. the UN Declaration of Human Rights.
  • Test conditions: 95% of attacks were successfully blocked in test environments.
  • Minor disadvantages: User experience remains virtually unaffected, with a minimal increase in legitimate prompt rejections.
  • Market potential: High flexibility and scalability make Constitutional Classifiers a promising technology for companies and organizations.

In view of the increasing responsibility in AI development, the relevance of such frameworks should not be underestimated. The balance between innovative functionality and security is seen as a decisive success factor in the industry. What can companies learn from this development – and what role could this technology play in the future?

Source: Anthropic