Friday, September 5, 2025

Insights and Innovations: Ariel’s Substack Reflections

Harnessing Evaluations: Insights from Google Search Development

In my journey at Google Search, I learned that evaluations (or “evals”) are fundamental to optimizing search engine performance. Here’s what stood out:

  • Role of Evaluations: Evaluations guide product improvements by assessing metrics like clicks on search results.
  • Optimal Development: Early on, any evaluation can enhance a product. However, as a product matures, the right evaluation becomes crucial. A misjudged evaluation can degrade performance.
  • Lessons from Competitors: Bing’s struggle illustrates the pitfalls of relying on outdated evals that no longer align with user needs.

As we dive deeper into AI, redefining our measures of success is essential. New benchmarks like SWE-bench, GPQA, and the Abstraction and Reasoning Corpus (ARC) are crucial for driving growth and innovation.

Let’s rethink how we evaluate success in AI! Share your thoughts below and engage with this conversation.

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