Exploring challenges in evaluating AI systems, the podcast delves into limitations of current evaluation suites and offers policy recommendations. Topics include pitfalls of using MM LU metric, difficulties in measuring social biases, hurdles in Bias Benchmark Task, complexities of Big Bench framework, and methodologies for red teaming in security evaluations.
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Quick takeaways
Challenges exist in accurately measuring AI model performance with multiple choice evaluations like MM LU and BBQ.
Practical implementation hurdles are faced by third-party frameworks like Big Bench and Helm in effectively evaluating AI systems.
Deep dives
Challenges in Multiple Choice Evaluations
Multiple choice evaluations like MM LU and BBQ pose challenges in accurately measuring model performance. MM LU's widespread use can lead to cheating through question familiarity, formatting changes impacting scores, inconsistent implementation by labs, and errors in proofreading. BBQ, measuring social biases, requires significant engineering effort, with unique challenges in scale, implementation time, and defining bias scores. Both evaluations highlight the complexities and potential inaccuracies in assessing AI models.
Issues with Third-Party Evaluation Frameworks
Third-party frameworks like Big Bench and Helm face challenges in practical implementation. Big Bench demands significant engineering effort for installation and scalability, encountering bugs in evaluations, and the need for extensive task analysis. Helm's expert-driven assessments lack compatibility with model-specific formats, leading to misleading performance impressions and slow evaluation speeds. Despite their conceptual value, these frameworks present technical hurdles and limitations in evaluating AI systems effectively.
Human and Expert Evaluations for National Security Threats
Evaluating AI models for national security risks involves red teaming by domain experts to identify potential threats. Challenges include the complexity and sensitivity of national security contexts, the artistry of red teaming methods, limitations due to security clearances, and legal implications of controlled information outputs. Coordination and standardized processes are essential for accurate threat assessments and the development of safeguards for evaluating AI systems in national security domains.
Most conversations around the societal impacts of artificial intelligence (AI) come down to discussing some quality of an AI system, such as its truthfulness, fairness, potential for misuse, and so on. We are able to talk about these characteristics because we can technically evaluate models for their performance in these areas. But what many people working inside and outside of AI don’t fully appreciate is how difficult it is to build robust and reliable model evaluations. Many of today’s existing evaluation suites are limited in their ability to serve as accurate indicators of model capabilities or safety.
At Anthropic, we spend a lot of time building evaluations to better understand our AI systems. We also use evaluations to improve our safety as an organization, as illustrated by our Responsible Scaling Policy. In doing so, we have grown to appreciate some of the ways in which developing and running evaluations can be challenging.
Here, we outline challenges that we have encountered while evaluating our own models to give readers a sense of what developing, implementing, and interpreting model evaluations looks like in practice.