According to The Rundown AI, Anthropic launched a U.S. waitlist preview of Claude Duet, a proactive agent app powered by Opus 5.5 for Pro and Max users.

According to @timnitGebru, LLMs cannot be reliably factual, citing Google AI Overviews errors; @AlecStapp urges testing with Opus 5.5 and Astra.

According to TheRundownAI, GPT-6.1 Sol nears Astra at 1/5 cost, undercuts Opus 5.5 on AutomationBench, and adds Pro 500, Ultrafast, and Decisions API.

According to @emollick, Claude Opus 5.5 turns a single prompt into an anime‑styled, short‑form explainer video in one shot, showcasing rapid content creation.