Agent Arena: GPT-6 Astra Reshapes Pareto Frontier at $4.01/Task with +12.55% Net Improvement
arena · x · 2026-09-09
Agent Arena reports GPT-6 Astra (Max) has reshaped the cost-performance Pareto frontier for agent tasks: $4.01/task buys +12.55% net improvement, and paying 7% more ($4.30) gets Claude Fable 5.1 (Max) at +14.5%. Below $4.01, no model on the frontier scores higher than Astra.
Related event: GPT-6 Astra Reshapes Agent Arena Pareto Frontier at $4.01/Task(2 posts)→
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