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Moonshot is setting an expiration date for its Kimi K2 models, closing new-user access on October 31 with full retirement by end of December, while teasing successors including K2.6, a 3T-class K3.1 Pro with 1M-token context, and a high-speed variant.
The article outlines five workflows to extract intelligence from Fable 5, a frontier AI model, before it moves from subscription to pay-per-token credits, emphasizing capturing judgment and knowledge that cheaper models cannot replicate.
OpenAI will retire GPT-4o, GPT-4.1, GPT-4.1 mini, and o4-mini from ChatGPT on February 13, 2026, as usage has shifted to GPT-5.2 models. The retirement follows user feedback that shaped newer models with improved personality, creativity, and customization options.