@aienginerd NO. I defined a perfectly good architecture to Fable, and it nailed the implementation. Then when I tried continuing the work on 5.5 and 4.8 they struggled with BASIC concepts that Fable had no issues with. No idea how you all misinterpreting this
Higher Order Company founder Victor Taelin says AI coding tool Fable outperforms GPT-5.5 on complex architectures in large codebases
Emmett Shear says frontier models assume unfamiliar designs are defects.
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Taelin@VictorTaelin
9:48 PM · Jun 14, 2026 · 12.1K Views
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Emmett Shear@eshear
@VictorTaelin @aienginerd Fable could handle *novel* architectures, as long as they were described clearly. Opus and GPT5.5 melt down, as you say, because they cannot stop making the assumption “different from my expectation means defect”.
Taelin@VictorTaelin
@aienginerd NO. I defined a perfectly good architecture to Fable, and it nailed the implementation. Then when I tried continuing the work on 5.5 and 4.8 they struggled with BASIC concepts that Fable had no issues with. No idea how you all misinterpreting this
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