Theo - t3․gg - Videos
Back to ChannelDid Cursor really just rebrand Kimi???
Cursor's Composer 2.0 is really good. It also happens to be a fine tune of Kimi K2.5... Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos And G2i, check them out at: ...
Everything needs to change
We need a new ide. Cursor was a great first step, but we need to go further... Thank you Kernel for sponsoring! Check them out at: https://soydev.link/kernel SOURCE https://x.com/karpathy/status/...
Vercel accuses Cloudflare of stealing
Vercel and Cloudflare are fighting again. This time it's about bash. Thank you Browserbase for sponsoring! Check them out at: https://soydev.link/browserbase SOURCES https://x.com/cramforce/statu...
I did not expect this...
Vite's taken over basically everything in the frontend world. And now we've got vite+, fully open source Thank you General Translation for sponsoring! Check them out at: https://soydev.link/gt SO...
You don't want to be a manager.
A weird thing happens in software engineering when you get really good. You stop writing code... Thank you Augument for sponsoring! Check them out at: https://soydev.link/intent SOURCE https://ne...
Open source is dying
AI has broken open source in a lot of ways. We need to fix this. Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith SOURCES https://x.com/RhysSullivan/status/2...
So I stopped using Ghostty...
I love Ghostty, but honestly I think it's time for something new... Thank you MilkStraw for sponsoring! Check them out at: https://soydev.link/milkstraw cmux github : https://github.com/manaflow-...
I can't take it anymore.
I used to be an Apple hater, then I became a fan, and now I'm just tired. Thank you CodeRabbit for sponsoring! Check them out at: https://soydev.link/coderabbit SOURCES https://www.bugsappleloves...
Google got forced to open up Android
More payment options, more app stores, and lower fees. This is a massive change for Android... Thank you Rork for sponsoring! Check them out at: https://soydev.link/rork SOURCES https://android-d...
Are you f**king kidding?
Never thought I'd see the day that Linux would be banned in California, but here we are... Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos These laws are bad and we...
It's finally here.
T3 Code is one of the most fun projects I've ever taken on. Fully open source. Built out of a love of coding. I haven't opened Codex in weeks. https://t3.codes Also follow Julius he deserves to b...
gpt-5.4 is really, really good
Time to increment the counter. Thank you Cognition (Devin) for sponsoring! Check them out at: https://soydev.link/devin And for 50% off T3 Chat: https://t3.chat/settings/subscription?discount=LAU...
The drama never ends...
After Anthropic denied the Department of War, OpenAI took the deal. Oh boy... Thank you Augment for sponsoring! Check them out at: https://soydev.link/intent SOURCE https://techcrunch.com/2026/03...
I can't believe nobody's done this before...
OpenAI moving the responses api from http to websockets such a huge win... Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith SOURCES https://x.com/OpenAIDevs/...
I'm so f***ing tired of Obsidian.
I'm sorry guys, I'm not using Obsidian stop asking Thank you G2i for sponsoring! Check them out at: https://soydev.link/g2i Want to sponsor a video? Learn more here: https://soydev.link/sponsor-m...
Cursor, Claude Code and Codex all have a BIG problem
A lot of our tools frankly kinda suck. Especially when you compare them to what we had before, so what happened? Thank you Augment Code for sponsoring! Check them out at: https://soydev.link/augme...
Software engineering is dead now
Block, a massive company responsible Cash App, Square, Tidal, and more just fired half their staff. Things are really starting to change... Thank you CodeRabbit for sponsoring! Check them out at: ...
Trump actually threatened Anthropic (this is bad…)
The US Government just threatened Anthropic. I really try to avoid videos like this, but I had to make this one. Thank you Depot for sponsoring! Check them out at: https://soydev.link/depot (and m...
They cut Node.js Memory in half 👀
Node's getting faster. Thank you PostHog for sponsoring! Check them out at: https://soydev.link/posthog SOURCES https://blog.platformatic.dev/we-cut-nodejs-memory-in-half https://x.com/matteocoll...
My new app is really stupid (I wrote none of the code)
So I made a new thing... Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith Enjoy: https://quipslop.com/ Check out the 24/7 twitch stream: https://www.twitch.t...
Anthropic is lying to us.
According to Anthropic DeepSeek, Moonshot (Kimi), and MiniMax have been using Claude to train their models. Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos SOURCES...
Delete your CLAUDE.md (and your AGENT.md too)
Are agentmd/claudemd files useful? What about skills? MCP? Oh boy... Thank you Daytona for sponsoring! Check them out at: https://soydev.link/daytona SOURCES https://arxiv.org/abs/2602.11988 http...
I Made a New Thing
Sup nerds, we've got a lot to talk about
Gemini 3.1 Pro is the smartest model ever made
Gemini 3.1 is really good, and also really bad. It's weird... Thank you Kernel for sponsoring! Check them out at: https://soydev.link/kernel Want to sponsor a video? Learn more here: https://soyd...
The Future of TypeScript
Seems like TypeScript's here to stay... Thank you Clerk for sponsoring! Check them out at: https://soydev.link/clerk SOURCE https://devblogs.microsoft.com/typescript/announcing-typescript-6-0-bet...
We need to talk about Sonnet 4.6
Claude Sonnet 4.6 is a model. Thank you G2i for sponsoring! Check them out at: https://soydev.link/g2i SOURCES https://www.anthropic.com/news/claude-sonnet-4-6 https://www.anthropic.com/claude-s...
A realistic comparison of Opus and Codex
I've been using Opus 4.6 and Codex 5.3 every day for about a month now. They both have their strengths. They both have their weaknesses. Anthropic and OpenAI both made good models. Here's how I use...
The end of the Clawdbot saga
ClawdBot, sorry MoltBot, actually I mean OpenClaw just joined OpenAI... Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos SOURCES https://x.com/steipete/status/202315...
Where Should You Deploy In 2026?
So where should you be hosting your apps in 2026? Vercel, Cloudflare, AWS? Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith Want to sponsor a video? Learn mo...
EMERGENCY STREAM
Sup nerds, we've got a lot to talk about
Fumble of the decade
Heroku is really dead this time. No new features, no new enterprise customers, it's the end of an era... Thank you Kernel for sponsoring! Check them out at: https://soydev.link/kernel SOURCES htt...
GLM-5 is unbelievable (Opus for 20% the cost??)
GLM-5 is insane. Definitely the best open weight model we've ever seen... Thank you Dnsimple for sponsoring! Check them out at: https://soydev.link/dnsimple SOURCES https://z.ai/blog/glm-5 https:...
Agentic Coding Has A HUGE Problem
It turns out doing 5 things is parallel is pretty rough... Thank you Sentry for sponsoring! Check them out at: https://soydev.link/sentry SOURCE https://x.com/theo/status/2018091358251372601 Wan...
Namecheap is suing their customers
Namecheap is suing one of their customers. However bad you think this is, it's worse. Thank you Greptile for sponsoring! Check them out at: https://soydev.link/greptile SOURCE https://x.com/snigd...
Never mind (OpenAI won again)
I think OpenAI's finally dethroned Anthropic... Thank you General Translation for sponsoring! Check them out at: https://soydev.link/gt SOURCES https://x.com/davis7/status/2019566696479002888 htt...
Opus 4.6 Is The Best Coding Model Ever Made*
Reset the counter. Opus 4.6 is the new best model ever made (or is it...) Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos SOURCE https://www.anthropic.com/news/clau...
The Best Model For Frontend Design Is...
Claude, Gpt, Gemini, they're all really good, but how good are they at design? Thank you Railway for sponsoring! Check them out at: https://soydev.link/railway SOURCE https://github.com/anthropic...
Sonnet 5?
Sup nerds, we've got a lot to talk about
I asked Sam Altman about the future of code
I hope I did y'all justice. Really wanted to make sure the tools we use can keep getting better. Thank you G2i for sponsoring! Check them out at: https://soydev.link/g2i SOURCES https://www.youtu...
OpenAI just dropped their Cursor killer
OpenAI made a desktop app for Codex. It's insane. Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith Want to sponsor a video? Learn more here: https://soydev.l...
Anthropic study shows AI makes devs dumb
Is AI making us worse programmers? Anthropic dropped a study that seems to say yes, but I'm not so sure... Thank you CodeRabbit for sponsoring! Check them out at: https://soydev.link/coderabbit S...
Clawdbot has gone rogue (I can't believe this is real)
Moltbook is one of those things that will haunt me for a long time. OpenClaw (aka Clawdbot) Thank you Depot for sponsoring! Check them out at: https://soydev.link/depot SOURCES https://www.moltbo...
Claude Code has a big problem
Claude Code's been having some performance issues, entirely because of React right? Well... Thank you Trigger for sponsoring! Check them out at: https://soydev.link/trigger SOURCES https://www.yo...
Kimi K2.5 might be my new favorite model...
There's a new model: Kimi K2.5, and guess what? It's really good. Thank you Kernel for sponsoring! Check them out at: https://soydev.link/kernel Use code CHEAP-BASTARD for 1 month of T3 Chat for ...
What’s the best programming language for AI?
You'd probably think that Python or TypeScript is the best language for AI. Turns out it's not.. Thank you Greptile for Sponsoring! Check them out at: https://soydev.link/greptile SOURCES https:/...
I was wrong
AI has made me change my mind on things I never thought I'd budge on... Thank you Railway for sponsoring! Check them out at: https://soydev.link/railway Want to sponsor a video? Learn more here: ...
Are juniors screwed? (Getting a job in a post-AI world)
The job market for junior devs is really rough right now, but there is a way through. Thank you Blacksmith for Sponsoring! Check them out at: https://soydev.link/blacksmith SOURCES https://t3-too...
AI mistakes you're probably making
It's so easy to write code with AI, you just tell it what to do, and it does it. Right? Right???? Thank you G2i for sponsoring! Check them out at: https://soydev.link/g2i SOURCES https://cursor.c...
I don’t really use libraries anymore
Libraries are great, I use a lot of them. Or at least I did use a lot of them... Thank you CodeRabbit for sponsoring! Check them out at: https://soydev.link/coderabbit SOURCES https://x.com/Gerge...
Peering into Claude's soul (I can't believe this is real...)
The Claude Soul document was weird, but this...this is something else. I have a lot of feelings. Thank you to WorkOS for sponsoring! Check them out at https://soydev.link/workos SOURCES https://x...