Jay Reno

So excited to announce the launch of @pointhound. Let the journey begin!

Proactive agent that thinks and acts like you. Multiplayer AI Brain for teams. Proper GUI for commanding 50 agents. Sauna.ai is all three. Sauna goes live today. First 2000 people, use access code LAUNCH for $80 of weekly(!) credits. Let’s explain. Multiplayer only works once the personal brain is powerful. So let's start here. Personal AI Brain 3,800+ tools connected. State of the Art memory. Skills and schedules you teach once that get repeated forever on cheaper models. An AI first CRM. Lives on the cloud so you can initiate tasks from anywhere: iMessage, Slack, Email. Also no need for a Mac mini 😉 GUI AI agents have been stuck in their MS-DOS era. A chat box, a scroll buffer, no way to command 50 of them. We built the first GUI: Live sessions on one side, work waiting for your sign-off on the other, plus the things Sauna kicked off while you were asleep waiting for review. Game mode helps clear the queue with actual joy. Okay so far so good, but how to give benefit of what you built to more people or whole team? Multiplayer Once your Sauna actually knows you and you gave her access to your tools, you can use multiplayer. Two modes: - Brain access. My co-founder Robert plugged my brain as a tool into his Sauna last month. He can ask it about pricing while I'm in other meetings, gets a sourced answer back, never has to interrupt me. That’s read only. Yolo mode gives him access to all my tools too :O - Communal Saunas extend that to whole companies with proper permissioning. Folder owners decide what's true for the whole company and build skills. Most get their personal brain + read access to communal files and memories. Works also for group planning my best friend's bachelor party. The Way I’ve been obsessed about AI Brain since 2016. Our human brains suck at some things like memory and are brilliant at others like creativity. We are also particularly bad at thinking we are all on the same page and then realising weeks later that we weren’t. Most leaders spend their days being the human diff tool, catching contradictions in hallway conversations and Slack threads. Repeating themselves 50 times. Now every company is spinning up hundreds or thousands of agents that drift faster than humans do, feeding each other their drift as context. Compounding rot. After 10 years and one failed company in this space we are launching the solution. The Launch We thought about a celebrity launch. Margot Robbie in a bathtub explaining agents. But then we realised the same money gives the first 2,000 people free daily credits, every day, until we burn through that $1,000,000. Sauna runs Claude, GPT-5, Gemini, GLM-5.1, DeepSeek, Kimi so you can budget yourself. The labs are racing to lock you so they can milk you in a year. We picked your side. Onboarding It’s live at app.sauna.ai We’ve preheated saunas based on a niche. Use the access codes in the comments to get a better experience.

@kozerafilip This is exactly what cowork should do. Nicely done @kozerafilip and team!

@PayWithLocus @wezabis @coledermo This is actually pretty awesome. Nicely done @coledermo and @PayWithLocus team!

Announcing: Build With Locus Stop wasting your agents context on crappy deployment CLI's Just tell your agent "Use buildwithlocus.com/SKILL.md to launch a website" and deploy full-stack apps in seconds Full-stack deployment, built for agents to use, paid for in stablecoins

Someone asked what advice founders ignore. That they: 1. Should change their name. 2. Should launch fast. 3. Shouldn't treat fundraising as success. 4. Shouldn't assume they can raise because it's time to. 5. Should fire bad people quickly. 6. Shouldn't talk to acquirers.

@haakamaujla @generalcatalyst You guys are machines

Congrats @adisingh and the rest of the @agentmail team!

Such a solid product. Glad to be an early backer, congrats to the team on the announcements!

@ycombinator @proliferateai Super excited to see this live!

Local coding agents can't do end-to-end work at your company. @proliferateai is the open-source platform for company-specific agents that can. Provision secure access to your tools, set up automations, and let agents work in the background. Congrats on the launch, @thepablohansen! ycombinator.com/launches/PVw-p…

@manufact @peakxvpartners @ycombinator @pioneer_fund @vento_ventures @sternhenri @jakeklamka @trueventures @kul @bhbryant @supabase @transposevc @RitualVC 🫡

Thanks to our investors, leaders in scaling dev tools and top operators. @peakxvpartners, @ycombinator, @pioneer_fund, @vento_ventures, IFF, @sternhenri, @jakeklamka, @trueventures, @kul, @bhbryant, Rory (COO @supabase), Latitude Fund, @transposevc, @RitualVC, Eli Brown (YC Partner), @jayjreno, @alecmhoward 🫶

We just raised $6.3M seed to help dev teams build and deploy MCP Servers for AI Agents and MCP Apps for ChatGPT / Claude Our open source SDKs crossed 4M downloads when we recorded this video (now already 6M+). Our mission is to build tools that enable humans to build software for agents, as agents will be the primary consumers and manipulators of digital information. We make building with MCP effortless. Create MCP servers or MCP Apps with mcp-use SDK. Preview and iterate with mcp-use Inspector. Connect your GitHub repo to our Manufact Cloud. Instantly make your MCP Server available to billions of AI agents and 800M+ users of ChatGPT / Claude.

@ycombinator @RunAnywhereAI @sanchitmonga22 @ShubhamMal72313 Cracked team!

.@RunAnywhereAI makes it easy for app developers to run AI models directly on phones and edge devices — fast, private, offline — with a single SDK and a dashboard to manage everything across user devices. Congrats on the launch @sanchitmonga22 and @ShubhamMal72313! ycombinator.com/launches/PFB-r…

@qhoang09 Big congrats @qhoang09 @Fabien_Devos and the Vybe team! Happy customer and proud investor!

Today we’re launching Vybe to the world and announcing our $10M Seed round to make vibe-coding actually work inside companies. This is why, how and our vision: Over the last few decades, every fast-growing company has quietly built the same mess behind the scenes: internal ops glued together with rigid SaaS, fragile spreadsheets or custom-coded tools nobody wants to maintain. Meanwhile, eng teams are stretched thin. Internal tools never make it to the top of the backlog. Vibe-coding is changing the game but it’s mostly been good for prototypes, landing pages, and side projects disconnected to production data. Our belief is simple: in the next few years, most internal software will be vibe-coded by teams working with AI, engineers and business teams together. Vybe is built for that collaboration: 1/ Business teams own the surface area:  Business teams (Ops, CX, PMs etc.)  can build and iterate on apps themselves: flows, UI, fields, and logic; without waiting weeks for eng to pick up another “internal tools” ticket. 2/ Engineers own the foundation:  Integrate production data (Postgres, Salesforce, Jira, and 3,000 integrations), define SQL definitions once, set up SSO auth, access control, and keep everything in Git to help when needed (from their favorite IDE!) 3/ Secure by design:  Our security and permissioning layer is not vibe-coded and can’t be modified by AI. Everyone can sleep at night. 4/ Team-ready out of the box:  SSO, Auth, environments, deployments, and review flows are built in. Over the last few months, we’ve been in closed waitlist mode and have hand-onboarded teams to pressure-test Vybe on real production workflows: - A YC Founder runs his entire CS operation on Vybe and saves ~2 days per week. - Another company ingested millions of rows from their warehouse to build BI-like internal views that would break typical AI builders. - One team fully replaced Metabase/Looker by plugging Redshift into Vybe and just… prompting their way to MAU, DAU, funnels… Remix apps from world-class operators To make it even easier to get started, we’re launching templates co-created with operators who’ve already solved these problems at scale: - @collinmathilde (CEO @ Front) – how she runs 1:1s - @lennysan (yeah, that Lenny!) - how to manage up, do perf reviews and write PRDs - @sushmars (CTO @ 23andMe) - her  7Cs Framework for Build vs. Buy Decisions - and many more from the best Tech leaders Backed by people who’ve lived this pain We’ve raised $10M in Seed funding, led by @firstround with participation from @ycombinator and an incredible group of operators and founders, including: The CEO Datadog, CEO Grammarly, CEO Reforge, CTO Intercom, Head of Product at OpenAI, Head of Product Anthropic, and 50 more incredible operators who believed in our vision! Huge thank you to our early customers, team, and investors for believing in us this early. 🙏 We’re now in GA: no more waitlist! vybe.build

@AaronLCannon @OutsetAI Big congrats and grateful to partner with y'all!

Excited to share big news: we just raise our $30M series B at @OutsetAI — only six months after our Series A.

Congrats @OutsetAI! Stoked to be an early investor of this incredible team and product

@danprimack @lulumeservey You’re going to great @lulumeservey!

Venture capital goes direct. @lulumeservey has raised a $40 million VC fund axios.com/2025/12/07/lul…

@arlanr @ycombinator My guy🚀

I dropped out of 11th grade in Kazakhstan, got into @ycombinator as a solo founder, recently closed a $6.2M round, and onboarded 100+ teams. All within 6 months. Here are some things I’ve learned in 2025 (thread):

@dedaluslabs 🔥🔥🔥

Introducing the Dedalus TypeScript SDK: the simplest way to build complex AI agents with native MCP support in TypeScript.

@hassaanraza we’re connected on slack via Pointhound!

@hassaanraza Pals

The interface of the future is human. We’ve raised a $40M Series B from CRV, Scale, Sequoia, and YC to teach machines the art of being human, so that using a computer feels like talking to a friend or a coworker. And today, I’m excited for y’all to meet the PALs: a new human-computing interface. PALs are emotionally intelligent, multimodal, and capable of understanding and perceiving. They can see, hear, reason, and even look like us. We’re releasing our 5 favorite PALs to start. Each PAL has its own distinct personality- from AI assistants to best friends. PALs: - Meet us where we are. Face-to-face over video call, on the phone, or even by text. - Are always thinking. They’re proactive, reach out first, remind you about what you forgot, or might just check in on you. - Understand us, finally. PALs can see us, understand our tone, emotion, and intent, and communicate in ways that feel more human. - Evolve with you. PALs have advanced memory, remember your preferences and needs, and adapt themselves over time. - Are capable. PALs can handle complex tasks — from responding to your emails to moving your schedule around to creating docs and doing research for you. Science fiction promised us a new human-computer interface, beyond the GUIs of yesterday, a human-like interface that would feel second-nature to use. That future never came, until now. Charlie’s story brings this idea to life. We’re excited for you to meet Charlie and his PALs for free at tavus.io Enjoy the film 👇