Document-centric work is one of the most demanding use cases for large language models, because it requires sustained attention, careful preservation of definitions, accurate cross-referencing, and the ability to reason over long chains of dependencies without silently compressing or distorting meaning. Google Gemini 3 and Anthropic Claude Opus 4.5 both target this domain, but they do so with very different priorities, which become visible only when professionals work with lo

Power users do not experience artificial intelligence as isolated answers or individual model benchmarks, but as an ongoing relationship with an ecosystem that either supports or disrupts their daily rhythm, where productivity depends on endurance, predictability, and the ability to move across writing, analysis, research, and monitoring without friction. ChatGPT, Gemini, and Grok represent three distinct philosophies of what an AI assistant should be for demanding users, and