Report
GPT-6.1 Sol scores one point below GPT-6 Astra on the Intelligence Index at under a quarter of its cost per task at max effort
Artificial Analysis says GPT-6.1 Sol replaced GPT-6 Sol after seven days and gained four points on its Intelligence Index. Its input and output token prices remain $2/$10 per million, but the cache-read discount rises from 90% to 95%.
TLDR
Artificial Analysis says GPT-6.1 Sol scores one point below GPT-6 Astra on its Intelligence Index. At max effort, it puts Sol’s cost at $0.72 per Intelligence Index task, versus $3.26 for Astra. The evaluator also says GPT-6.1 Sol uses roughly 10–30% more output tokens than GPT-6 Sol across effort levels.
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