Claude Sonnet 4.5 and Gemini 3 are frequently used for document-centric professional work. Their differences emerge clearly when the task involves long documents, dense structure, ambiguity, and sustained reasoning across many sections . This comparison focuses on how each model behaves when reading is the primary workload, not a side feature. ····· Claude Sonnet 4.5 is optimized for careful reading and coherence preservation. Claude Sonnet 4.5 approaches documents as logical

Gemini 3 vs ChatGPT 5.2: Pricing, Subscriptions, API Costs, and Real TCO for Professionals Gemini 3 and ChatGPT 5.2 compete on capability, but they diverge most sharply on how costs accumulate in real professional use . Sticker prices alone are misleading. What matters is total cost of ownership , including subscription structure, API economics, operational overhead, and the cost of rework when outputs fail expectations. ····· Subscription pricing reflects different philosoph