Artificial Analysis has unveiled a new benchmark called the "Search Index," designed to evaluate search API providers specifically for use with AI agents. The index assesses providers based on three critical criteria: quality of results, cost efficiency, and speed of response. This development comes as the demand for robust search capabilities in AI systems continues to rise, especially with the growing use of large language models (LLMs) in agent-based applications.
Top Performers in the Benchmark
Seven search API providers were tested using the new framework, with GPT-5.6 Luna, Parallel, Exa, and Firecrawl emerging as the highest-ranking services. These platforms excelled in delivering relevant, fast, and affordable search results, which are essential for AI agents to function effectively in real-world applications.
Implications for the AI Ecosystem
The benchmark highlights the increasing importance of search infrastructure in the AI landscape. As AI agents become more integrated into enterprise tools, customer service platforms, and automated decision-making systems, the reliability and performance of underlying search APIs will play a pivotal role in their success. This new standard offers developers and businesses a clear way to compare providers and make informed decisions.
With AI systems becoming more autonomous, the ability to quickly and accurately retrieve information will remain a key differentiator. The Search Index not only serves as a performance indicator but also pushes API providers to innovate and improve their offerings to meet the evolving needs of AI agents.



