Users Report Version 5.6 Falls Short of Fable 5 Performance

Benchmark tests and user reviews indicate that GPT-5.6 (Sol) has not surpassed Fable 5. Scoring 61 compared to Fable 5's 80 on SWE-bench Pro, the newer model also lags in specific domains like gaming and physics.

2026-07-08 ~ 2026-07-10 · 3 related posts

• User Comparison: Fable Still Beats 5.6 in Gaming and Physics — apples_jimmy · 2026-07-08
• 5.6 Seems Worse Than Fable 5 — Independent-Wind4462 · 2026-07-08
• Sol Doesn't Significantly Outperform Fable 5 — AnyStatistician236 · 2026-07-10