Claude Fable 5 (max) vs Grok 4.6

Fable 5 wins this one, and the intervals leave no doubt: Fable's Elo floor of 2272.7 sits well above Grok's ceiling of 2080.8, so the gap is statistically real. Fable is #1 on the board at 2320.9 Elo, Grok 4.6 way down at 2035.3, a 285.6-point spread, and overall it's 89.3 against 86.61. The widest gap is the one that matters most for retention: hook strength, 89.39 vs 80.81. Length adherence follows at 93.2 to 88.03. Grok takes exactly one metric, visual cues, 86.63 against Fable's 84.81. The records agree, 1185 wins and a single loss for Fable against Grok's 941 and 99. What Grok doesn't offer is a budget escape: at about twenty cents per script to Fable's roughly twenty-six, the saving is around five cents a draft. Grok does finish in less than half the time, which matters if you're iterating live. But if the script ships close to as-is, five cents doesn't cover a hook gap that wide.

Pick Claude Fable 5 (max effort + 4.8 fallback) if you want the top of the board, the strongest hooks and length adherence, and scripts that ship with minimal editing at roughly twenty-six cents each.
Pick Grok 4.6 if you want drafts in less than half the wait with slightly better visual cues at about twenty cents a script, and can live with a clear gap on hooks and overall quality.