The AI news for December 1st, 2025 Here are the details of the day's selected top stories: ChatGPT celebrates its third birthday: A retrospective. Source: https://www.all-ai.de/news/topbeitraege/chatgpt-3jahre The new AI memory GAM is supposed to prevent 'Context Rot' in long chats. Source: https://the-decoder.de/neues-ki-gedaechtnis-gam-soll-den-context-rot-bei-langen-chats-verhindern/ Use AI locally, but easily: Pinokio 5.0 brings open models onto your own PC. Source: https://the-decoder.de/ki-lokal-nutzen-aber-einfach-pinokio-5-0-bringt-offene-modelle-auf-den-eigenen-pc/ GPT-5 solves a complex math proof in record time and excites OpenAI researchers. Source: https://the-decoder.de/gpt-5-loest-komplexen-mathematik-beweis-in-rekordzeit-und-begeistert-openai-forscher/