Fable is Fast but Sloppy, Sol is Solid
FinanceYF5 · x · 2026-07-12
The author noted that while Fable is smarter and offers great insights even at lower reasoning tiers, it spent only 40 minutes building its own benchmark. The result felt like "winging it": creating its own questions, grading itself, and consistently awarding perfect scores.
In contrast, GPT-5.6-Sol spent anywhere from 6 hours to 2 days methodically building the benchmark, yielding results that were far more robust and testable.
Related event: GPT-5.6 Sol vs Fable 5: The Trade-off Between Intelligence and Utility(18 posts)→
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