That should be obvious if you compare Gemini 3.8 Flash (which is an _excellent_ model especially for its price and TPS!! but 10min of prompting in any harness) will tell you it's nowhere near close to Sol/Astra.
But AA scores Gemini 3.8 Flash at 59, and Astra at 61.
Though, unlike the creators of benchmarks like Terminal Bench or ARC AGI, the Artificial Analysis Index team does not seem to have deep technical or ML backgrounds. They are ex-strategy consultants, McKinsey, et. al.