ChemLens vs Inside AI

ChemLens turns your camera into a chemistry lens. Point it at any everyday object — a wooden chair, a plastic bottle, a glass cup, a metal coin — and ChemLens identifies what it is and shows you the materials, elements, and environmental footprint behind it. Curious students, science teachers, and anyone who loves learning will find ChemLens a friendly way to connect the chemistry they study with the objects they touch every day. WHAT YOU GET FROM EACH SCAN • Object identification — name, category, and a one-line composition summary • Chemical composition — the main constituents and their estimated percentages, shown as a clean bar chart • Elemental breakdown — the key chemical elements (O, Si, C, Fe, S, and more) with short, plain-language notes • Environmental impact — rough carbon footprint, water use, and recyclability estimates • Material origins — where these materials typically come from and a bit of history • Suggested reading — curated links (mostly Wikipedia) so you can dive deeper into anything that catches your interest KEY FEATURES • Scan with your camera or upload a photo from your gallery • Bilingual interface — English and Simplified Chinese, switchable any time including on the login screen • Personal scan history with search and material filters • Bookmark any scan to revisit it later • Cloud sync — your scan history follows you across devices once you sign in • Privacy-first camera — the camera is off whenever you leave the Scan tab, so your privacy indicator stays off • Account control — full account-delete option built right into Settings EDUCATIONAL, NOT A LABORATORY ChemLens is a learning tool, not a chemical analyzer. Every result is the AI's educated guess from a single photo — useful for sparking curiosity and reinforcing classroom topics, but not a substitute for lab analysis, safety information, or medical advice. The model is told to be conservative, and we always show you the source disclaimer.

Inside AI is an interactive field guide to how AI agents and large language models actually work, built for the curious skeptic. Learn from the source, not the hype. No accounts. No ads. No tracking. No internet required. Everything runs on your device. START HERE Where does AI actually live? See the data center, the many copies of a model, and how agents and tools really fit around it. WATCH AGENTS WORK See a live two-agent Writer ↔ Reviewer loop pass work back and forth until it's approved — a feedback loop you can actually watch, step by step. UNDERSTAND THE AGENT'S TOOLKIT Tool-calling, ReAct, RAG, MCP, multi-agent pipelines, A2A, computer use, prompt injection and reliability — the patterns behind every modern AI agent, each shown as a hands-on demo you can poke at. SEE INSIDE THE MODEL Tokens and the context window. Next-token prediction, one piece at a time. Attention weights across a sentence. Parameters and training with real gradient descent. Quantization, and which small models fit on your own device. Watch the ideas behind every LLM come to life. MEANING, LIMITS & CONTROL Embeddings and cosine similarity. Vector databases. Hallucination — and how grounding fixes it. Bias. Structured output. WORK WITH MODELS Prompts and chain-of-thought. Reasoning models with a thinking budget. What the model actually receives on each turn, and what it keeps when a long chat overflows. Evaluation, benchmarks, and how leaderboards get gamed. BUILD A SECOND BRAIN Turn a folder of linked markdown notes into an AI-queryable knowledge base — that's RAG, pointed at your own notes. Explore the bundled vault of 42 linked concept notes. REAL OR MOCK — ALWAYS LABELED Every demo carries a REAL or MOCK badge. REAL means genuine logic is running on your device. MOCK means it's a scripted illustration. You always know exactly what's running — no smoke, no mirrors. Most demos are scripted, and every one says so with a MOCK badge. That's why you can trust the ones marked REAL. RUNS ANYWHERE Works on any iPhone or iPad running iOS 17 or later. The demos use scripted mock agents, so no Apple Intelligence and no special hardware is required. Whether you're a developer, a student, or just AI-curious, Inside AI replaces buzzwords with understanding — one interactive concept at a time. Free to use. If it helps you, there's an optional tip jar — but nothing is ever gated.