Tendril
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Builders · Ages 11–13
Compare Claude, ChatGPT, Gemini, and Flux side-by-side. Learn prompt engineering and catch hallucinations.
Meet your guide: Wren — a sharp raven
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Chapters
Modules · 80
AI is a label that covers many things. Let's narrow it down so you can tell marketing hype from the real computer science underneath.
Most modern AI is trained on a loop of guess, check, and adjust. Understand the loop and you understand the heart of machine learning.
The line between deep reasoning and clever pattern recognition is blurry. Here's how researchers try to tell them apart.
AI did not start in 2022. It has decades of wrong turns and breakthroughs. Knowing the history helps you spot hype from real progress.
Pro prompters follow a structure. Give the AI a role, set the context, show examples, set constraints, and pick a format. This framework alone 10x's your output quality.
Instead of describing what you want, show the AI two or three examples. Few-shot prompting is often the fastest way to get consistent output.
Telling the AI to 'think step by step' before answering dramatically improves its accuracy on reasoning problems. Here's why and when.
Every AI conversation has two layers: a system prompt that sets the rules, and user prompts you type. Understanding the difference is the gateway to building AI-powered tools.
Beginners scrap their prompt and start over. Pros keep the good parts and change only what isn't working. Here's how to iterate like a craftsperson.
When your prompt feeds into code, you need machine-readable output. JSON mode and XML tags make the AI's response parseable instead of loose prose.
Turn your best prompts into reusable templates with variables. This is how pros scale: one great template, thousands of runs.
Bad output is almost never random. It's a clue. Here's how to diagnose and fix a broken prompt instead of just mashing the regenerate button.
AI-assisted coding is not magic and not cheating. It is a new way of working where a model drafts, you decide. Let's draw a map before we start building.
Time to get hands on. Install a real AI coding editor, sign in, and write your first line together. No credit card required to start.
Let's make something real. A single-page site with HTML, CSS, and a little interactivity. You plan, the AI drafts, you review and ship.
Bring it all together. Pick one of three starter projects, plan it, build it with AI, and deploy it. You are now a builder who ships.
Every agent — fancy or simple, local or cloud — boils down to four parts. Learn the recipe and you can read any agent system like a menu.
No code. Just design. Pick a real task you do every week and draft a complete agent spec — goal, tools, loop, stop, approvals, and what success looks like.
An AI that paints starts with pure noise and removes it, one step at a time, until a picture appears. Here's the surprisingly beautiful math behind it.
Five image models, five personalities. Here's when each one is the right pick — in 2026, with current strengths, costs, and quirks.
Great image prompters aren't typing harder — they're using a mental framework. Subject, setting, style, composition, lighting, mood. Here's the system.
Text-to-video became practical in 2025 and cinematic in 2026. Here's the state of the art and how to choose.
ElevenLabs can clone a voice from 30 seconds of audio. That's useful for accessibility — and dangerous in the wrong hands. Here's how to use it well.
Type a prompt, get a full song — vocals, drums, mix, even in Portuguese. Here's how Suno v5, Udio, and ElevenMusic work — and what they can't yet do.
US Copyright Office in 2026: works created purely by AI aren't copyrightable. Works with enough human creative control might be. Here's where the line sits right now.
Your first end-to-end AI-assisted creative project. Plan it, make it, and reflect on what surprised you. Small scope, real output.
Claude.ai and the Anthropic API both run Claude. So why do they cost different amounts? Pull apart the two doors into the same model.
Every big AI has a free version. Stack them side-by-side and learn where each one runs out of gas.
All three claim to be the best. Pick tasks you actually care about, run the same prompt across all three, and you'll build your own benchmark.
When the question is 'what happened this week?' or 'what does this paper say?', Perplexity is often the right answer. Here is why.
Grok is the odd one out — baked into X, trained on live posts. Sometimes that's a superpower, and sometimes it's a liability.
Voice interfaces flipped from gimmick to genuinely useful. Learn what each top voice mode feels like and when to pick which.
AI in your browser turns every webpage into something you can interrogate. Learn which extension to install, and why that access needs trust.
Artifacts is Claude's canvas. Charts, code, docs, and interactive React components render live next to the chat.
Deep Research is Gemini's multi-step research agent. You ask a question; it plans, searches, reads, synthesizes, and delivers a report.
v0 by Vercel turns a prompt, screenshot, or Figma file into a working Next.js app deployed in one click.
Upload a PDF, a set of docs, or a research paper. NotebookLM produces a two-host podcast conversation about the material.
A Space is a bookmarked, collaborative research context. Your sources, your prompts, your team — all persistent.
xAI's Grok 4.1 Fast has the biggest context window on the market at the cheapest price. Here is when that matters more than raw reasoning quality.
Midjourney is the artist favorite. FLUX.2 Pro is the API-native challenger. Here is which one to pick depending on what you are making.
Both generate full songs from a prompt. Suno wins on ease and ELO. Udio wins on audio fidelity and producer workflows. Here is how to pick.
Runway built for filmmakers. Sora 2 was the tech demo that melted OpenAI's GPU budget. Here is how to pick a video model for actual projects.
Posters, logos, ads, memes — any image with legible text is a special case. Ideogram and FLUX.2 both do it well. Here is who wins what. Before using AI-generated marks commercially, do a basic USPTO search (or ask a lawyer) — a Swoosh on a shoe is still a Nike problem regardless of who rendered the pixels.
Extended thinking makes Opus smarter but burns hidden tokens. Here is how to budget it without blowing your bill.
A great essay starts with a great outline. Let AI brainstorm and structure. Then write every sentence yourself.
History essays live or die by evidence. AI can help you find sources, organize arguments, and avoid weak claims.
Study a master artist by having AI explain their techniques, then imitate them yourself. The art is still yours.
AI can write full songs now. Use it as a collaborator, not as your ghost-composer, and you'll learn more than you thought possible.
Real athletes use video analysis. Now you can too - AI marks up your shot, stroke, or swing in real time.
Using AI to write your story for you makes it no longer your story. Using AI as an editor who reads every draft at 2am is one of the best deals in the world.
Music theory is a language with harsh rules. AI tools can check your voice leading, generate practice exercises, and play what you wrote back at you.
The hardest part of language class is speaking without freezing. Voice-mode AI lets you have real conversations with zero social risk.
Grammarly went from grammar checker to full AI writing assistant. Honest look at what it catches, what it misses, and whether you still need it in the Claude era.
Notion AI lives inside the Notion workspace you already use. Look at whether it's worth the extra $10/month or a waste when you have ChatGPT open in another tab.
Canva bolted AI onto the world's most popular design app. It is intentionally un-flashy, which is why 185 million people use it monthly.
Otter invented the AI meeting assistant category in 2016. It has been lapped by rivals but still has the cheapest starting tier and the largest user base.
Fathom gives you unlimited meeting recording, transcription, and AI summaries for free. Look at why it's eating Otter's lunch and what the paid tier adds.
Granola listens to your computer audio instead of joining as a bot. Look at why that design choice changed the meeting-notes category. What it's genuinely good at No bot in the meeting — attendees never know AI is listening, which matters for sensitive deals.
GitHub Copilot was the first AI coding assistant at scale. Look at what it is great at, where Cursor and Claude Code have passed it, and whether the $10 subscription still makes sense.
v0 by Vercel generates working React and Next.js code from prompts. Look at what it nails, what it still gets wrong, and why it's changed how startup MVPs get built.
Replit Agent builds a full working app inside Replit's cloud IDE. Look at what you can actually ship with it and when it falls apart.
ChatGPT Projects organize chats by topic, with shared files and custom instructions. Look at what they actually change in how you work.
ChatGPT Memory lets the model remember facts about you across conversations. Look at what it remembers, what it misses, and the privacy tradeoffs.
Custom GPTs let you package ChatGPT with instructions, files, and tools. Look at whether anyone actually uses them outside of demos.
Claude Projects are simpler than ChatGPT Projects but work better for teams. Look at what's included, what's missing, and why many people prefer them.
Claude Artifacts show generated code, docs, and HTML in a live side panel. Look at how it changed what people build with Claude.
Perplexity gives you AI answers with source citations. Honest look at whether it beats ChatGPT with browsing and what the $20 Pro tier actually adds.
NotebookLM turns your documents into an AI tutor that only answers from your sources. Look at why its audio overviews went viral and where it still falls short.
Jasper was a $1B+ company before ChatGPT existed. Look at whether marketing teams still pay $49+/month when Claude does most of what Jasper does for $20.
Copy.ai started as a copywriting tool and pivoted to sales/GTM automation. Look at the new product and whether marketers still have a reason to use it.
ProWritingAid is Grammarly's biggest competitor, aimed more at long-form writers. Look at what it catches that Grammarly misses and whether it's worth switching. In 2024 it added AI rewriting and now in 2026 has a full AI writing coach mode.
Captions turns a phone recording into a polished short video with auto-captions, B-roll, and AI edits. Look at what it nails and the limits of its one-tap workflow.
Reading and writing files is where real scripts start. Learn the with-statement, path handling, and JSON round-trips.
When AI outputs get too long, too technical, or too fast for humans to check, how do you know it is doing the right thing? Scalable oversight is the research program trying to answer that.
Every AI paper has the same skeleton. Learn the parts and you can navigate any of them in 20 minutes.
P-value is one of the most abused numbers in research. Here is what it actually says — and what it does not. 'Model B is no better than model A.' 'The new prompt does not change user satisfaction.' A low p-value means the boring story would rarely produce data that looks like what you saw.
The most famous warning in statistics is also the most ignored. Here is how to actually tell them apart.
Stable Diffusion, Midjourney, and DALL-E all trace back to LAION, an open dataset of 5 billion image-text pairs. It changed AI, and started a legal storm.
A summer workshop in New Hampshire gave artificial intelligence its name and its optimism problem.
In 2019, OpenAI released a language model in stages, citing safety, and started a conversation that continues today.