Meta's October releases of Muse Wonder and Muse Wonder Full have driven the 96% market-implied probability that it ranks as the third-best AI lab. These proprietary models delivered strong results on Artificial Analysis Intelligence Index and arena leaderboards, with competitive context windows and agentic performance that placed Meta ahead of most peers in trader evaluations. Its open-weight Muse Spark Open variant further reinforced ecosystem strength. While OpenAI and Google hold higher aggregate scores, no other lab has matched Meta's recent output cadence or benchmark consistency. A late-month capability jump from Moonshot AI or Anthropic could still shift the outcome before end-of-month resolution.