Three New Models Redraw the Intelligence-Cost Pareto Frontier in a Week

Artificial Analysis reports that the intelligence-versus-cost Pareto frontier shifted significantly last week, with Claude Fable 5.1, Muse Spark 1.3, and GPT-6 Astra pushing the efficiency frontier outward.

2026-09-10 ~ 2026-09-10 · 2 related posts

• Intelligence Index v4.3: Claude Fable 5.1, Muse Spark 1.3 and GPT-6 Astra Reset the Cost-Efficiency Frontier — ArtificialAnlys · 2026-09-10
• Intelligence-vs-cost Pareto frontier redrawn within a week by Fable 5.1, Muse Spark 1.3, GPT-6 Astra — maximelabonne · 2026-09-10