Surge AI Introduces 'Tuesday': A Frontier Index for AI Capabilities at Work
echen · x · 2026-08-20
Surge AI introduced "Tuesday," a frontier index designed to measure AI performance during a realistic workday. The benchmark posits that professional intelligence is a layering of multiple skills, such as reading charts, following policies, tracking constraints, using tools, and communicating insights. Current rankings place Fable 5 (66.8) and GPT-5.6 Sol (66.7) at the top, followed by DeepSeek v4 Pro (59.7). Tuesday aims to evaluate models on handling complex workflows rather than just solving isolated problems.
Related event: Surge AI Launches Tuesday Work Index; Fable 5 Edges Out GPT 5.6 Sol(7 posts)→
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