Chartography benchmark shows zoom tool lifts Fable 5 from 29% to 73%

echen · x · 2026-07-28

HelloSurgeAI’s Chartography benchmark tests whether models can read professional charts. In the quoted result, adding a zoom tool lifts Fable 5 from 29% to 73% accuracy and Sonnet 5 from 13% to 44%, suggesting chart-reading is highly sensitive to interface support rather than raw model ability alone.

Related event: Claude's Zoom Tool Significantly Boosts Chart Recognition Accuracy(3 posts)→

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