Artificial Analysis Intelligence Index v4.2
Artificial Analysis has released Index v4.2, an interim update to its AI model evaluation platform. The update introduces more complex, agentic tasks and private test sets to prevent model gaming while the team prepares for a larger v5 release.
Why it matters
As AI models become more capable, standard benchmarks are becoming saturated, necessitating more rigorous and realistic testing methods to accurately measure progress.
Artificial Analysis K Artificial Analysis Models Coding Agents Speech, Image, Video Inference Leaderboards About AI Trends Arenas K All articles September 4, 2026
We are accelerating elements of our upcoming v5 release with interim updates to keep pace with the frontier. Index v4.2 has more complex and realistic tasks, and more private test sets to prevent gaming
+ AA-Briefcase , our agentic knowledge work evaluation with a private test set
+ Surge’s GDP.pdf , long context document reasoning across 4,592 PDF pages
- GPQA Diamond, an exceptional scientific reasoning evaluation that has now been saturated
… plus greater weighting on held-out test sets to prevent gaming, and grading infrastructure upgrades to increase robustness
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