Claude Opus 4.8 drives power user nuts, sparks Sonnet 5.6 comparisons

Babayaga1664 · reddit · 2026-08-19

A heavy user running 8-12 concurrent context windows complains that Claude Opus 4.8 is overly verbose, does unrequested work, and picks bad approaches even with planning. Opus 4.6 was his sweet spot, and Sonnet (Fable) works well when used selectively. He asks developers running Opus 4.8 vs Sonnet 5.6 how they compare.

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