OpenAI DevDay Today + Vibe Coding Takes Over

"VCs are now checking if startups buy Cursor before checking if they have customers."

What's up builders 👋

OpenAI DevDay kicks off tomorrow and the rumor mill is going wild. Word on the street is they're dropping an "agent builder" that could make all our n8n/Zapier/Make workflows look like stone tablets. Meanwhile, Sora is absolutely crushing it at #1 on the App Store with 200k downloads per day (despite the watermarks everyone's already removing). And apparently vibe coding is now so powerful that VCs are analyzing startup bank statements to see who's buying the tools. What a time to be alive.

OpenAI DevDay 2025 starts today with Sam Altman's keynote streaming live, and the developer community is buzzing about one specific rumor: the launch of an "agent builder" platform.

Here's why this matters: For the past year, builders have been duct-taping together n8n, Zapier, Make, Vapi, and Claude workflows to create AI agents. If Greg Isenberg's sources are right, OpenAI is about to drop a unified platform that could replace this entire stack. Think of it as the difference between building a website with raw HTML in 1995 versus using Webflow today.

The timing isn't random. With Google's Jules agent shipping updates weekly, Anthropic's Claude outperforming humans in cybersecurity, and literally everyone launching agent frameworks, OpenAI needs to stake their claim in what's becoming the most important developer platform battle since cloud computing. If they nail the developer experience (and knowing OpenAI, they probably will), this could be the moment AI agents go from "interesting experiment" to "production default."

• v0 now supports GPT-5 and Sonnet 4.5 integration - Build AI apps by prompting, no API key needed, $5 free credits monthly

• v0 gets exclusive access to new shadcn components - First place to access the latest React component library updates

• Perplexity Search API - Real-time, continuously updated web search capabilities for your AI apps (ICYMI)

• GPT-5 Instant update - Better recognition and support for users in distress, improved safety routing

• sweeta on GitHub - Remove watermarks from SORA 2 videos using LaMA inpainting

• HackTheWeb - AI-powered web penetration testing tool using rule-based intelligence

• Build an AI video bot in 20 minutes - Create auto-posting to 10+ platforms using n8n + Veo3 + GPT-4

• 120 AI Tools mega-list - Categorized collection covering ideas, presentations, websites, and more

• 20+ Scalable Backend Examples repo - Open source gold mine for AI agents, workflows, and backend systems

• NVIDIA says you don't need massive LLMs for agents - Small Language Models (SLMs) are the real future for agent routing

• EmbeddingGemma by Google - Build offline AI apps with on-device semantic search and RAG for privacy-first applications

• 100 Developers VS 1 Vibe Coder debate - Community split on whether solo AI-powered dev can outpace traditional teams

• Why LLMs freak out over seahorse emoji - Technical deep dive with 214 HN comments on bizarre model behavior

• AI writes 40%+ of code but creates silent risks - Discussion on duplicated logic, memory leaks, and architectural drift

• Sora's copyright crackdown is too late - SpongeBob arrests and Pikachu ASMR already flooding social feeds

• AMD partners with OpenAI - Six gigawatts of processors over 5 years to challenge Nvidia's dominance

• Neo4j raises $100M for AI innovation - Launches new agentic tools for graph-based AI

• a16z: Software eating $13T labor market - Capital in, GPUs + engineers at work, disruption of traditional labor

• Sora hits #1 on App Store - 200k downloads per day despite restricted access

• a16z analysis: Startups going hard on vibe coding tools - Bank transaction data reveals massive adoption

• Jeff Bezos: AI is in a bubble but benefits are 'gigantic' - 618 comment HN thread debating bubble dynamics

• Taylor Swift using AI-generated videos - Mainstream adoption signal for AI video tools

• Jules agent weekly updates - Async coding agent getting major improvements, check their changelog for integration tips

• Foundation models for quantum mechanics - Periodic Labs exploring next frontier where biology meets quantum scale

• Sam Altman's Sora update #1 - Direct link to technical details most people missed

• Vibe Coding Is the New Open Source—in the Worst Way Possible - WIRED's critical take on the vibe coding movement

• Sam Altman and Jony Ive's secret device won't be 'your weird AI girlfriend' - Technical challenges behind the mysterious hardware project

• AI is going to mint a new class of creators - But will break the oligopoly of existing ones

• ChatGPT learned from human feedback. The next generation will learn from nature - Paradigm shift in AI training approaches

• Anthropic's cybersecurity breakthrough - Claude now helps teams discover and fix vulnerabilities faster than traditional tools

If AI can now outperform human teams in cybersecurity competitions (thanks Anthropic), write 40% of our code, and generate videos that Taylor Swift uses for promotion... are we witnessing the last generation of developers who actually know how things work under the hood? Or are we about to become the most powerful builders in history, wielding tools our predecessors could only dream of?

The answer probably depends on whether you're learning to surf the AI wave or just floating along hoping not to drown. Choose wisely.

What are you building this week? Hit reply and let me know - especially if you're using any of these new tools to ship something wild.

Keep shipping,

P.S. Heard about the developer who tried to explain vibe coding to their manager? They said "It's like pair programming, but your partner is a hallucinating genius who works for pennies and never complains about your music choices." The manager approved a 10x budget increase.