Astra vs. Fable 5.1 on real ML tasks -- tradeoffs, strengths, shortcomings [P]

Excerpt

I ran a side-by-side ML text-processing and model-training workflow using Fable 5.1 vs. Astra (both on xhigh), and the results could not have been more different. Warning, long post. TL;DR -- Astra codes more agentically, Fable more coherently. Fable writes better and follows directions better. Astra's final outcome was slightly better, and its scientific rigor/reproducibility was noticeably stronger. Both models improved their F1/Accuracy by 0.02-04 after human feedback on their approach, demon