The global AI industry is bracing for a "Foundation Model Showdown Week" during the 13-day Mid-Autumn Festival and National Day holiday, with major labs preparing releases. In Silicon Valley, Reuters confirmed Anthropic is considering launching a new model, with the community expecting Claude Opus 5.2 or Fable 5.2 after gray test signals in Claude Code, including requests for Fable 5.1 being redirected to a new version and an Opus-Next test channel cut off on the evening of September 17. Google's suspected Gemini 4 Pro entered the Arena under a fake name for placement tests, and Elon Musk's Grok reported upcoming moves. Domestically, Kimi hinted at "K3.1", DeepSeek wrote its next Pro card into official documents, and Qwen4 unveiled its new architecture. OpenAI released GPT-6 Astra earlier this month, a foundation model that made OpenAI pop the champagne for AGI ahead of schedule.