UX Roundup: New AI Models | How Designers Use AI Design | User Agency | Breadcrumbs | Doug Engelbart | Decoy Effect | Active Users | AI Training vs. Copyright

Comparing GPT 5.6 Sol, Opus 5, Kimi K3 | How designers use a UI design agent | AI enhances users’ agency, and they like it | Breadcrumb navigation | UX Hero Doug Engelbart | The decoy effect in pricing plan comparison pages | The paradox of the Active User | Delhi High Court rules that AI training on copyrighted content is legal in India