According to @OpenAI, ChatGPT now allows users to adjust warmth, enthusiasm, and emoji use via the Personalization settings, as announced in an X post dated Dec 19, 2025 (source: @OpenAI on X). The announcement contains no mention of crypto, blockchain, tokens, pricing, or API changes, disclosing no explicit direct catalyst for crypto markets from this update (source: @OpenAI on X). For traders, the verified takeaway is a UX-focused feature release with no stated market, token, or on-chain linkage (source: @OpenAI on X).