Add Sonnet 4.6 SlimPajama results — S4.0 wins, score now 2-1-1
SlimPajama completed: 101 experiments, 2 keeps, best 1.5267 (vs S4.0's
1.5259). First dataset where Sonnet 4.0 clearly wins — flat optimization
landscape where both models barely improve from baseline. Sonnet 4.6
struggled with reproducibility (exp36-49 couldn't replicate baseline).
Series score: Sonnet 4.6 leads 2-1-1 with FineWeb-Edu-High remaining
as the tiebreaker.
New: Sonnet-4.6-SlimPajama-Agent-Run-Mar-24-2026.md
Updated: Cross-LLM-Comparison.md (4 datasets), Cross-Dataset-Comparison.md,
Home.md, cross-llm-comparison.png chart (4 datasets)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>