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GPT-6.1 Sol comes within one intelligence point of Astra at under a quarter of its task cost

artificialanalysis.ai 3 min read Editor score 8/10

GPT-6.1 Sol is reported one point below GPT-6 Astra on the Intelligence Index at less than one quarter of its cost per task, with gains on several agentic and reasoning benchmarks. The results offer a concrete capability-versus-cost comparison for model selection.

What

GPT-6.1 Sol replaces GPT-6 Sol and scores one point below GPT-6 Astra on the Intelligence Index.

How

At max effort, it costs less than a quarter as much per Intelligence Index task as GPT-6 Astra; it uses 10–30% more output tokens than GPT-6 Sol.

Why it matters

Its reported cost and intelligence tradeoff may help engineers choose models for agentic workloads with task-cost constraints.

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