Temporary diagnostic: logs per-stage gradient norms (pre-clip, post-clip, post-IQN, final) to identify where H100 gradient collapse occurs. Remove after root cause is found. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Temporary diagnostic: logs per-stage gradient norms (pre-clip, post-clip, post-IQN, final) to identify where H100 gradient collapse occurs. Remove after root cause is found. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>