Best of Medium — November 2025

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    Rich and dynamic user interfaces with Flutter and generative UI

    Flutter introduces GenUI SDK in alpha, enabling developers to build dynamic, personalized user interfaces generated by AI models like Gemini. The SDK orchestrates communication between users, Flutter widgets, and AI agents to transform text conversations into interactive experiences. It uses the A2UI protocol for serialization and supports multiple content generators including Google Gemini API, Firebase AI, and custom adapters. The SDK maintains brand consistency while allowing AI to compose UI from custom widget catalogs. Future plans include ADK integration, progressive rendering, full-screen composition, and Dart bytecode for server-driven UI.

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    Kimi K2 Thinking : Best Agentic Reasoning LLM is here, beats GPT5, Sonnet 4.5

    Moonshot AI released Kimi K2 Thinking, an open-source LLM that uses test-time scaling to perform extended reasoning chains with up to 300 tool calls per session. Unlike traditional models that scale parameters, K2 scales the number of reasoning steps, maintaining coherence across long chains while integrating web search, code execution, and documentation reading. The model achieves strong results on complex benchmarks like Humanity's Last Exam (44.9%) and SWE-Bench Verified (71.3%) through agentic reasoning. It uses INT4 quantization-aware training for efficiency and offers a Heavy Mode that runs eight parallel reasoning trajectories. K2 represents a shift from word prediction to sustained, tool-augmented cognition.

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    10 design psychology principles every UI/UX designer should know

    Explores 10 fundamental psychology principles that influence user behavior in digital interfaces. Covers Hick's Law (limiting choices), Mere Exposure Effect (familiarity), Fitts's Law (target sizing), Aesthetic-Usability Effect (visual appeal), Serial Position Effect (placement matters), Jakob's Law (consistency), Von Restorff Effect (differentiation), Cognitive Load (simplicity), Peak-End Rule (memorable moments), and Social Proof (validation). Each principle includes practical examples from companies like Google, Instagram, Zoom, Tesla, Spotify, and Airbnb, demonstrating how understanding human behavior creates more intuitive and effective user experiences.

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