The 4070's two local models with default tuning, as the baseline the
4090's candidates will be compared with. Every one of the 22 failures
is an escalation from failure_limit: 2; there were no prose turns,
invented tools, context trims, or finished-but-wrong results.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>