← Back to PeopleDXResearcherDylan XuResearcher at Amazon Web Services (AWS)LinkedInResearcher measuring Astra's capabilities with filler tokens and hidden cognition.1Mentions1Articles1OutletsCompanies CoveredAnthropic1Blender1CoArena1Epoch1Google1Meta1NVIDIA1OpenAI1Stockfish1UK AISI1Unreal Engine1ArticlesMost recent firstMentioned InReferenced in coverageGPT-6-Astra Can Do Ambitious ThingsThe ZvicautiousSep 14, 2026“Researcher measuring Astra's capabilities with filler tokens and hidden cognition.”