https://youtube.com/channel/UCbRP3c757lWg9M-U7TyEkXA Software dev, AI nerd, TypeScript sympathizer, creator of T3 Chat and the T3 Stack. TV & Film Podsync generator (support us at https://github.com/mxpv/podsync) en-us Wed, 03 Jun 2026 14:22:19 +0000 Wed, 24 Jan 2007 01:57:07 +0000 https://yt3.ggpht.com/Y6jut5A-dhWRlv7W81kGxVFPtZGjZN97IhBP75uLnx2AVV7ZEJUUUxBKHlFw9GcwILxkz1E_cLc=s800-c-k-c0x00ffffff-no-rj https://youtube.com/channel/UCbRP3c757lWg9M-U7TyEkXA Theo - t3․gg Theo - t3․gg no WnBx1Vi7M6w https://youtube.com/watch?v=WnBx1Vi7M6w prompts, agent instructions, and project markdown files become technical debt when they grow stale overtime Thank you Arcjet for sponsoring! Check them out at: https://soydev.link/arcjet SOURCES: https://www.seangoedecke.com/prompts-are-technical-debt-too/ Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Wed, 03 Jun 2026 00:06:00 +0000 Theo - t3․gg Your prompts are tech debt. 20:30 no 1 rTMRlqT8Q8c https://youtube.com/watch?v=rTMRlqT8Q8c AI does a surprisingly good job of steering weaker engineers in the right direction... Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos SOURCE https://www.seangoedecke.com/ai-makes-weak-engineers-less-harmful/ Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Mon, 01 Jun 2026 08:38:00 +0000 Theo - t3․gg I hate that this is true 38:50 no 2 JpSHyEIZ_bo https://youtube.com/watch?v=JpSHyEIZ_bo We finally got a benchmark that actually matches reality. Thank you Browserbase for sponsoring! Check them out at: https://soydev.link/browserbase SOURCES: https://deepswe.datacurve.ai/ https://x.com/theo/status/2059352130289651925 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Sun, 31 May 2026 08:31:09 +0000 Theo - t3․gg AI code benchmarks lied to us 32:31 no 3 _goOUJkkxUk https://youtube.com/watch?v=_goOUJkkxUk Opus 4.8 is here. And so is ultracode. They're both uh, interesting... Thank you Coderabbit for sponsoring! Check them out at: https://soydev.link/coderabbit Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Fri, 29 May 2026 08:57:15 +0000 Theo - t3․gg Anthropic fights back 28:03 no 4 q88yYhLSPC0 https://youtube.com/watch?v=q88yYhLSPC0 Didn't think we'd see this for a long time, but it looks like Anthropic might actually be profitable soon... Thank you Sent for sponsoring! Check them out at: https://soydev.link/sent SOURCES: https://simonwillison.net/2026/May/27/product-market-fit/ https://x.com/typedfemale/status/1945912359027114310 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Thu, 28 May 2026 11:21:33 +0000 Theo - t3․gg Holy sh*t I think Anthropic is profitable now 27:55 no 5 xJaMTo2YgO8 https://youtube.com/watch?v=xJaMTo2YgO8 I made a video like this about 5 months ago, but my workflow has already entirely changed. The models, harnesses, and more have changed completely... Thank you Clerk & DNSimple for sponsoring! Clerk: https://soydev.link/clerk DNSimple: https://soydev.link/dnsimple SOURCE: https://gist.github.com/t3dotgg/cbe978269b4c7258c4d20164aece7087 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Wed, 27 May 2026 10:36:21 +0000 Theo - t3․gg How I code with AI changed a lot 47:34 no 6 JMYspR42HFM https://youtube.com/watch?v=JMYspR42HFM The three main coding agents right now are Claude Code, Codex, and Cursor. Which one should you use? Thank you Macroscope & G2i for sponsoring! Macroscope: https://soydev.link/macroscope G2i: https://soydev.link/g2i Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Tue, 26 May 2026 08:39:38 +0000 Theo - t3․gg Claude Code vs Codex vs Cursor (an honest comparison) 37:57 no 7 UvUzpSlXKtg https://youtube.com/watch?v=UvUzpSlXKtg Cursor dropped a new model: Composer 2.5. I'm really impressed. Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith SOURCES https://x.com/cursor_ai/status/2056415413077233983 https://cursor.com/blog/composer-2-5 https://cursor.com/evals https://x.com/SpaceX/status/2046713419978453374 https://www.whichai.dev/with-design-skill/composer-2.5/1 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Sun, 24 May 2026 20:56:58 +0000 Theo - t3․gg Cursor just crushed Claude Code 37:30 no 8 XKA94rcu8b8 https://youtube.com/watch?v=XKA94rcu8b8 Everyone seems to be getting hacked these days. Today it was GitHub, and this one's bad... Thank you CodeRabbit for sponsoring! Check them out at: https://soydev.link/coderabbit SOURCES https://x.com/github/status/2056884788179726685 https://x.com/github/status/2056949168208552080 https://x.com/JSKitteh/status/2057097337185378521 https://x.com/AikidoSecurity/status/2057157539502915798 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Thu, 21 May 2026 09:10:17 +0000 Theo - t3․gg This is bad... 27:17 no 9 1p334v40npw https://youtube.com/watch?v=1p334v40npw Google just dropped Gemini 3.5 Flash. It's definitely a model. Thank you Trigger.dev for sponsoring! Check them out at: https://soydev.link/trigger People you should hire: https://x.com/LyalinDotCom https://x.com/galdawave https://x.com/JackWoth98 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Wed, 20 May 2026 03:51:05 +0000 Theo - t3․gg I'm scared to make this video 23:37 no 10 3A4y_Iw_gpU https://youtube.com/watch?v=3A4y_Iw_gpU The way GitHub Copilot was handling usage is hilariously bad. So bad I got to spend thousands of dollars worth of tokens for just $40. Thank you Clerk for sponsoring! Check them out at: https://soydev.link/clerk Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Tue, 19 May 2026 02:25:55 +0000 Theo - t3․gg Spending $40,000 in Copilot for $40 39:06 no 11 M_HxHr7du5M https://youtube.com/watch?v=M_HxHr7du5M My security psychosis is getting worse. Everything is getting hacked, and it's not going to get better for a while... Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith SOURCES https://www.jefftk.com/p/ai-is-breaking-two-vulnerability-cultures https://x.com/OpenAI/status/2053939702110269822 https://hacks.mozilla.org/2026/05/behind-the-scenes-hardening-firefox/ https://x.com/SocketSecurity/status/2053935298405355923 https://daniel.haxx.se/blog/2026/05/11/mythos-finds-a-curl-vulnerability/ https://www.theregister.com/security/2026/05/11/anthropics-bug-hunting-mythos-was-greatest-marketing-stunt-ever-says-curl-creator/5238111 https://github.com/TanStack/router/issues/7383 https://securitylab.github.com/advisories/GHSL-2026-099_Quarkus/ https://cloud.google.com/blog/topics/threat-intelligence/ai-vulnerability-exploitation-initial-access https://github.com/0xdeadbeefnetwork/Copy_Fail2-Electric_Boogaloo https://github.com/V4bel/dirtyfrag https://www.csoonline.com/article/4167137/ai-finds-20-year-old-bugs-in-postgresql-and-mariadb.html https://openai.com/index/gpt-5-5-with-trusted-access-for-cyber/ Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Fri, 15 May 2026 20:09:07 +0000 Theo - t3․gg Everything is pwn’d now 33:59 no 12 131yAOjxHHQ https://youtube.com/watch?v=131yAOjxHHQ Anthropic finally made it clear what you can and can't do with the agents SDK and Claude subs. It's not good. Thank you CodeRabbit for sponsoring! Check them out at: https://soydev.link/coderabbit SOURCES https://x.com/ClaudeDevs/status/2054610152817619388 https://x.com/ClaudeDevs/status/2054639777685934564 https://x.com/mattpocockuk/status/2035037334689677746 https://x.com/noahzweben/status/2054615670684619255 https://x.com/mattpocockuk/status/2040536403289764275 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Thu, 14 May 2026 10:08:59 +0000 Theo - t3․gg I’m done. 45:51 no 13 S9EGx6ik-18 https://youtube.com/watch?v=S9EGx6ik-18 We've all started using markdown a lot more lately, but what if instead we used HTML? Thank you CopilotKit for sponsoring! Check them out at: https://soydev.link/copilotkit SOURCES https://x.com/trq212/status/2052811606032269638 https://x.com/karpathy/status/2053872850101285137 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Wed, 13 May 2026 06:46:31 +0000 Theo - t3․gg Stop letting your agents write Markdown. 36:06 no 14 gILMoijqeGA https://youtube.com/watch?v=gILMoijqeGA They re-wrote all of Bun with Rust in about a week. And it's probably going to ship... Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos Also the best place to use Codex, Claude Code, and more: https://soydev.link/code SOURCES https://x.com/jarredsumner/status/2053047748191232310 https://x.com/jarredsumner/status/2053368908372128055 https://wwj.dev/posts/i-am-worried-about-bun/ Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Tue, 12 May 2026 10:52:14 +0000 Theo - t3․gg I wish this was clickbait 27:30 no 15 lNVa33qUzZ8 https://youtube.com/watch?v=lNVa33qUzZ8 Coding with agents is really fun, and really productive. But there are downsides... Thank you Browserbase for sponsoring! Check them out at: https://soydev.link/browserbase SOURCE https://larsfaye.com/articles/agentic-coding-is-a-trap Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Mon, 11 May 2026 06:45:20 +0000 Theo - t3․gg We all fell for it… 56:43 no 16 3pkz-Ie_k_c https://youtube.com/watch?v=3pkz-Ie_k_c Anthropic's been struggling to get compute lately, but it seems like they've finally solved it by buying compute from xAI? Thank you Coderabbit for sponsoring! Check them out at: https://soydev.link/coderabbit SOURCES: https://x.com/claudeai/status/2052060691893227611 https://www.anthropic.com/news/higher-limits-spacex https://x.com/nvidiaai/status/2052082412994383936?s=46 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Thu, 07 May 2026 09:08:36 +0000 Theo - t3․gg Anthropic just…wait what 35:13 no 17 HuE7OvOckfE https://youtube.com/watch?v=HuE7OvOckfE GitHub was my home for over a decade. I think it's time to explore future options. Forgejo, Gitlab, Gitea, Codeberg, Bitbucket and more. Where do we go now? Thank you WorkOS for sponsoring! Check them out at: https://soydev.link/workos SOURCES: -https://x.com/jasonbcox0/status/2049244913842426230 -https://x.com/mitchellh/status/1983896884222861474 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Wed, 06 May 2026 19:43:52 +0000 Theo - t3․gg Get In, We're Leaving GitHub 50:46 no 18 VDPMXSAxiWk https://youtube.com/watch?v=VDPMXSAxiWk Prime's takes on the AI Economy are mostly right, but there's a couple things worth going deeper on... Thank you Blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith SOURCE https://www.youtube.com/watch?v=_Q-e_nczWqM Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Tue, 05 May 2026 08:53:45 +0000 Theo - t3․gg Prime is (mostly) right about AI 41:12 no 19 fxxpQhJyupQ https://youtube.com/watch?v=fxxpQhJyupQ OpenAI and Microsoft's partnership is ending... Thank you Browserbase for sponsoring! Check them out at: https://soydev.link/browserbase Source: https://x.com/OpenAINewsroom/status/2049228769135874295 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Mon, 04 May 2026 09:12:17 +0000 Theo - t3․gg Microsoft and OpenAI break up (Amazon is pumped) 36:46 no 20 J8O9LLpJNrg https://youtube.com/watch?v=J8O9LLpJNrg Anthropic's doing shady stuff again. Thanks to our sponsor: Kilo, The Open Source AI Coding Agent: https://soydev.link/kilo SOURCES: https://x.com/om_patel5/status/2048204411986469232 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Fri, 01 May 2026 21:26:53 +0000 Theo - t3․gg Seriously, Anthropic?? 34:39 no 21 R7ex-Gt8dtw https://youtube.com/watch?v=R7ex-Gt8dtw Github is a platform that means a lot to me. It hurts to see it fall apart like this. Thank you blacksmith for sponsoring! Check them out at: https://soydev.link/blacksmith SOURCES: https://x.com/mitchellh/status/2049213597419774026 https://x.com/sagitz_/status/2049153217385111608 https://x.com/GergelyOrosz/status/2048834949667537369 https://x.com/stevederico/status/2048835443601592680/photo/1 https://x.com/jasonbcox0/status/2049244913842426230 https://x.com/mitchellh/status/1983896884222861474 Want to sponsor a video? Learn more here: https://soydev.link/sponsor-me Check out my Twitch, Twitter, Discord more at https://t3.gg S/O @Ph4seon3 for the awesome edit 🙏 Thu, 30 Apr 2026 09:55:10 +0000 Theo - t3․gg Github is Falling Apart 35:11 no 22