Summaries of Theo - t3․gg Videos 📚

Why Is OpenAI Adding Ads and an $8 ChatGPT Go Plan?

What Firefox 144 Fixes for Web Developers

Why Do Modern Coding Tools Need a Bigger IDE?

How Should Companies Choose Programming Languages?

AI is ruining the job market

Did Meta Really Fake Benchmarks?

How Does Kiro, Amazon's Cursor Competitor, Use Specs and Hooks?

So I've had gpt-5 for a bit now...

Which Vibe Coding Tool Has the Best Vibes?

How Serious Are the New React Security Flaws?

How Do Ralph Loops Keep AI Agents Working?

What is MCP and how can Anthropic fix it?

Why Are Apple's Software and Policies Frustrating?

Watch this if you use shadcn/ui

How to Secure a Dev Job in 2025

Are UUIDs Truly Secure from Brute Force Attacks?

Remix is ditching React (and I think that's a good thing)

Life after TypeScript

Why Is SQL a Poor Interface for Applications?

Does Claude 4 Snitch on You? A Benchmark Test

How to fix software that keeps crashing across Windows and macOS

Why Are AI Subscription Subsidies Being Cut?

Figma filed for their IPO (and revealed EVERYTHING)

Is full stack even real anymore?

OpenAI might have just killed Claude

How to get the most out of Opus 5.5 for coding?

Why is OpenAI buying a VS Code fork???

The talk that changed the web

CSS has gone too far (deep dive on Minecraft in 100% CSS)

How to automate engineering workflows with Claude Code

How Bun 1.3 reshapes its future and tools

How to Grow From Engineer to Startup CEO

Why Cheap Code Still Makes Software Expensive

Why Did Anthropic Donate MCP to Linux Foundation?

How to handle AI tool outages and bugs

Why Are There So Many JavaScript Runtimes?

Google won image generation (it's not even close) NANO BANANA PRO BREAKDOWN

I spent $4,000 to make TypeScript faster

Why Do AI Costs Keep Rising Across Models?

How to Catch Up With AI-Assisted Programming

Please Stop Using Booleans.

Vite won.

So I tried the GitHub "Vibe Coder"...

OpenAI’s open source models are finally here

The Future of React

Why Could AI Accelerators Replace Nvidia GPUs?

Do CLAUDE.md and AGENT.md Files Hurt Coding?

How the "Online Safety Act" might destroy the web

How to build fast lightweight websites with HTML

Why the hell did Vercel hire the creators of Nuxt?

BREAKING: Anthropic announces massive investment (50% of OpenAI???)

Should we break up AWS over the us-east-1 outage?

How to evaluate Claude 4.5 Sonnet for coding

How to Use Vibe Coding Without Ignoring the Code

Ripple: a new framework that takes the best of everything

OpenAI’s privacy disaster (it isn’t their fault)

It’s actually over now

Why is everyone open sourcing their startups?

The real reason Tea got hacked (it's NOT vibe coding)

Why Tech Companies Are Moving Off React

Is GPT-5.1 Better for Everyday Chat Than Coding?

What Is Stripe Managed Payments for Startups?

The current state of gpt-5

Anthropic has weird vibes

If you write code, please watch this.

Does Shopify Regret React Native?

How to spot bad open source tutorials and protect projects

How to use Gemini CLI open source AI tool

I like putting SQL in React

How Good Is Google Veo 3 for AI Video Creation?

A breakdown of style solutions for 2025

Is AI Coding Making Developers Obsolete?

Why Are Code Tutorials Holding You Back from Learning?

Why Did Cloudflare Acquire the Astro Framework?

Are the OpenAI Files' Sam Altman Claims Credible?

I never saw this coming

What Is Vite+ and Why Does It Cost Money?

Does AI Make Us Dumber? MIT Study Breakdown

OpenAI’s TikTok Clone Is Interesting…

Cursor just changed forever

Is Software Engineering Dead? How AI Is Changing Dev

PewDiePie is right about AI

The actual reason you can't get a job

How to Pick a CAPTCHA Service for Apps

How Do Chrome Extensions Turn Browsers Into Scraping Botnets?

How Did AI Model Usage Change Throughout 2025?

"Vibe Coding" Is A Stupid Trend

How Does T3 Chat Build a Local-First Database for AI Chat?

Why Traditional Logging Fails at Scale (and How to Fix It)

How Does React Native Really Work in Big Apps?

Why Choose Convex Instead of a SQL Backend?

There's a new Tanstack package 👀

How Can Company Names Trigger Website Hacks?

Why Did Brand Protection Take Itch.io Offline?

Why Is Google Cloud Facing Criticism?

Cursor 1.0: Moving Past The Fork

React is killing the web

You should NOT work at a startup

How to assess Anthropic Haiku 4.5 small model performance

GPT-5.1 Pro vs. Gemini 3 Pro Preview: How Does GPT-5.1 Pro Solve Complex Problems?

What is GPT-5 and its pricing, context, and features?

How did Blue Sky become number one and stay open source

GlazeGPT got rolled back (4o update gone wrong)

Why Did OpenAI's Windsurf Acquisition Fall Apart?

Why Should Developers Embrace AI Coding Tools?

How Does Gemini 2.5 Pro Compare With AI Rivals?

Google just dropped their Cursor killer (FREE Gemini 3 Pro???)

React 19.2 Dropped Early???

Building a MODERN Full Stack App for FREE w/ NextJS 12, Typescript, Prisma and more - T3 Stack

How to Evaluate and Use AI Skills for Coding

Stop pretending mobile is the web (and vice versa)

Why Did Atlassian Acquire The Browser Company?

Why the internet went down for 2.5 hours yesterday

Why Is PHP Gaining Ground Again With Laravel?

Being a good engineer kinda sucks

Vibe Coding is For Senior Developers

Amazon bets big on React Native

I finally switched to Postgres.

How to manage change energy in engineering work

How to Maximize Token Usage for AI Agents

Is Kimi K2 Thinking the Best Tool-Calling Model?

OpenAI dropped a new model built for developers

Don’t sleep on Chef (I can’t believe it works this well)

Why Are Investors Moving Beyond AI Startups?

Claude Opus 4.5 Review: Best Model for Coding

How Do Claude Code, Codex, and Cursor Differ?

Why is Electron actually good for desktop apps?

Predicting OpenAI's future via their acquisitions

Microsoft Cracks Down On VS Code Forks

How Did T3 Chat's Database Migration Cause an Outage?

Developers are way too sensitive.

I finally get how SVGs work

How to Build a Modern Tech Stack for Web Development

How I Code with AI Using Cursor for Planning, Execution, and Reviews

Which Browser Offers the Best Web Experience Today?

Why Avoid React for Early-Stage Startups?

Apple has never lost this hard before

JavaScript is fast enough (don't rewrite your code)

Can AI Games Be Good?

How to Balance Footage Using Gamma Controls

OpenAI is back on top

What's New in Next.js 15.3: Turbopack, RSpack, Adapters

How Did Claude Build a Gen Z Programming Language?

Is Grok 4 Fast the Best Value AI Model?

Why JavaScript Is Blamed for a Broken Web

How ts-rust rewrites TypeScript in Rust and speeds up checks

Let's Talk About Database Performance

Why Should Small Organizations Leave Slack?

Claude Cowork: a small taste of AGI

Why Apple Is Struggling in the AI Era

Why Did Microsoft Build Edit in Rust for Windows?

Well that was fun

Why Did GPT-5 Feel Worse After Its Launch?

React caused an outage for Cloudflare?

Vibe coding is already dead

How to Use Fable 5 for End-to-End Coding

TOON: “JSON for AI” (is it any good?)

Why Does Theo Make So Much Content About AI?

How to evaluate Opus 5 performance and cost effectiveness

How NextJS REALLY Works

Rate Limiting

This might be bigger than DeepSeek

GPT-4.1 is here, and it was built for developers

Which AI Model is Best for Coding: Fable 5.1 or Astra?

Is Polaris Alpha Really OpenAI's GPT-5.1?

How AI Killed "Database Startups"

Claude 4 Review: Smarter Coding at a High Cost

Why Is Figma Enforcing Its Dev Mode Trademark?

What Does Trump’s America AI Action Plan Propose?

Windsurf just got bought...by Devin?? This is nuts.

Figma announces a CMS and a vibe coder? Oh boy

You have no idea how how bad this really is.

How to avoid fetch on render in React data fetching

Watch this if you hate React Server Components

Why Is China Winning the Open-Weight AI Race?

A free model just appeared in Cursor (and it’s really good at code)

How does Vzero by Vercel improve AI code generation?

WWDC was weird.

Where the f*** is Gemini 3?

AI has rewired my brain

Was I wrong about Cloudflare?

How Does GPT-5.6 Handle Long Coding Projects?

OpenAI is suing Elon

How good is GPT-5.2 really and where does it fail

How Did the npm Supply Chain Hack Actually Happen?

Why Switch from Supabase to Convex?

What Is React Built For If Not Web Development?

What is GPT6.1 Soul and why it costs less

Everything Google just announced

Why AI May Lock React Into Lasting Dominance

Is Opus 4.7 the Best Model for Coding?

Claude Code's latest update is really cool (when it works...)

How Will Microsoft’s Control Change GitHub?

This is good, actually

What everyone missed about Builder.ai

Everything is a wrapper now

Why I Migrated to Convex Database: Lessons Learned

NVIDIA's first real competition (Google is KILLING it)

Why Did Cursor's New Pricing Anger Users?

The case against toasts

Mongo can’t stop winning (I hate it)

OpenAI spends $6.5 billion to hire one guy

Why Does Claude Code Now Have Weekly Limits?

Peering into Claude's soul (I can't believe this is real...)

Anthropic can’t help themselves…

I hate JavaScript

Why Writing Code Was Never the Software Bottleneck

Did gpt-5 just shadow drop? Horizon is the best code model ever

What Are the Best Everyday Tools for Developers?

Falling in love with “if” in CSS (sorry Tailwind…)

Why Is MCP the Wrong Abstraction for AI Agents with Too Many Tools?

20 years later, PNG 3.0 is finally here

Is Grok 4 the Best AI Model Right Now?

Does AI Get More Evil as It Gets Smarter?

React feels insane

What could replace Git for collaborative coding?

Fable 5 vs GPT-5.6: Which Coding Model Wins?

How Does Tailwind Serve as a Design System for Developers?

AI code is here. We need to be responsible with it.

How to Cut Claude Code Costs With GLM 4.5

Better than Claude and 10x cheaper?? GLM-4.6 is so good

The real reason Claude got dumber

Why Deepseek R1 is a Game-Changer in AI Models

Cloudflare and Vercel can't stop fighting

How to switch to Ghosty terminal on Mac

ChatGPT Atlas Drove Me Insane (it's not just Chrome)

Why Is GPT-5.5 Disappointing?

Why Is It Harder to Get a Junior Developer Job?

How Google's Antitrust Ruling Affects Chrome

Firebase made an IDE?

Why Does Claude Code Seem to Get Worse Over Time?

How Jev classifies data fast for apps

How Does OpenAI Codex Compare With Cursor?

Is gpt-5.1 the best code model ever?

Apple is paying Google to fix Siri (yes really)

How Does Vercel's Active CPU Billing Work?