Differences Between Fable 5 and Fable 5.1 on MineBench

Overview

Notes Average Inference Time: 40m 12s Fable 5 averaged 18m 04s Total Cost (for 15 builds): $ 147.55 Fable 5 cost $54.93 Average JSON Size: 34.07 MiB (largest 88.76 MiB) Roughly comparable to Fable's 5 average of 30.65 MiB Despite no change in API pricing, Fable 5.1 was nearly 3x as expensive as Fable 5 on MineBench. With roughly 2x the inference time, much of that difference appears to come from substantially longer reasoning. The price increase is quite significant considering Anthropic adv

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