Cerebral Valley – Week of April 27th 🗓

Last chance to apply for our NatSec Hackathon 3.0, this weekend in SF! Plus, the best of AI events, jobs, and more...

April 27, 2026

Top Silicon Valley builders tackle national security challenges at the 3rd annual hackathon. The US Army is an official partner, with mentors and judges from Palantir, OpenAI, Deloitte, and government and military leaders. Problem sets span command & control, cybersecurity, drones, and edge compute. Approval required.

📍 Sat–Sun, May 2–3 | 4:00 PM – 11:00 PM PDT San Francisco, CA 🔗 

You Might’ve Missed

  • TRINITY: An Evolved LLM Coordinator — @SakanaAILabs shares a new paper published at ICLR 2026: instead of building one giant AI, they evolved a coordinator to orchestrate a diverse team of specialized AIs. Also launching Sakana Fugu in beta — a multi-agent orchestration system hitting SOTA on SWE-Pro, GPQA-D, and ALE-Bench. 354K views.

  • pyptx: Python DSL for NVIDIA PTX kernels — @PatrickToulme launches pyptx — write pure NVIDIA PTX in Python. One PTX instruction = one Python call. Direct Hopper + Blackwell support: wgmma, TMA, tcgen05, mbarriers. JAX + PyTorch integration. Includes GEMM, grouped GEMM, RMSNorm, and SwiGLU implementations.

  • Time-travel Geoguessr with GPT-Image-2 — @venturetwins highlights a Geoguessr clone where you travel through time. Built with GPT-Image-2 generating panoramas, then Codex turning them into an app where you guess the map location + time period.

  • Meteogliders flying daily in Greenland — @YohanHadji announces meteogliders are now operational in Greenland. DMI becomes the world's first national weather service to use them operationally.

  • Build AI releases flagship dataset + $1M compute grants — @buildpbc releases their flagship dataset along with $1 million in compute grants.

  • Smart parking with YOLO26 in real-time — @muhammdrizwanmr builds a real-time parking management system with Ultralytics YOLO26 that monitors slot occupancy. Handles vehicles partially overlapping slots or entering at angles and the system still tracks availability accurately.

  • Getting started with NVIDIA Isaac Sim — @lukas_m_ziegler highlights NVIDIA Robotics' "Getting Started with Isaac Sim" tutorial series — covering everything from building your first robot in simulation onward. A solid starting point for anyone self-learning robotics.

Open Jobs

Looking to hire the best talent? Reach out to [email protected] for job placement inquiries.

Software Engineer at Computational Photography Startup (Remote)

- Building: Photo upscaling and generation for real estate & spatial photography.

- About: Fully bootstrapped with >8 figures ARR • Small, distributed, tight-knit team • Solving cutting-edge problems in photography and spatial understanding • Processing thousands of pictures per day on industrial GPU infrastructure.

- Ideal candidate: Experience does not matter, but demonstrated aptitude in game development or diffusion models are a huge plus • Clear communicators that value shipping > prestige • Repeat hackathon winners • Merging code into prod on day one

AI Engineer at Construction Automation Startup (SF)

- Building: AI agents for construction, “Harvey for real estate development”

- About: Backed by CEO of Blackstone & others • Harvard-founded • Clients include Tishman Speyer & premier real estate firms • Solving frontier geospatial AI problems

- Ideal candidate: Experience building production-ready agents • Python or typescript expertise • Strong preference for ex-founders or ex-founding engineers

Agent Engineer at AI Media Startup (SF)

- Building: Agentic media production platform, “Lovable for creatives”

- About: Well-funded preseed • Small but elite team of <5 • Founded by founder of Soundcloud and Dance • Founded raised $500m+ for previous companies

-Ideal candidate: Demonstrated experience in using LLMs in production & to build quickly • 4+ years of experience in professional software engineering at early stage startups • Hungry engineers willing to grind in-office with the team

If you’re interested in the above roles, please email [email protected] with your LinkedIn, resume, and why you think you’re the best fit. We’ll be in touch if there’s a match.

Events List

A curated list of upcoming AI events (view all events).

Featured in April:

🗓️ Saturday, May 2nd
📍 London, UK

Build in a day. Shape the future of AI Agents. Showcase on a global stage. This isn't just a one-day sprint — it's an accelerator. Build AI agents that learn, adapt, and evolve autonomously, then demo your project LIVE at MongoDB.local London on May 7th. Judged by MongoDB's Field CTO, a UN Women AI advisor, and top venture partners. £15,000 in prizes and exclusive residencies. Fully in-person, max team size of four. Approval required.

🗓️ Sat–Sun, May 16–17
📍 Notion HQ, San Francisco, CA

Join the Notion team for two days of building on their new Developer Platform. Build with primitives that let you sync any data source into Notion, give your agent any tool, and trigger workflows from anywhere. No servers, no infra — just a CLI and your ideas. Whether you've been building integrations for years or you're writing your first Worker, this hackathon is designed to get you shipping. Sponsored by Anthropic, OpenAI, and Vercel.

🗓️ Thursday, May 7th
📍 Digital Jungle SF, San Francisco, CA

Tech founders, builders, and AI enthusiasts are invited to an evening of demos, a panel discussion, and conversations around developing, shipping, and scaling agentic workflows. Network with up-and-coming startups and leaders developing AI technologies. Panel and demo lineup includes Fireworks AI, Browserbase, Mastra, Drata, Auth0, and more. Space is limited.

🗓️ Thursday, May 7th
📍 AWS Builder Loft, San Francisco CA

Think your AI prompts write secure code? Prove it. Clash of Prompts is a first-of-its-kind live tournament where developers go head-to-head, crafting prompts scored in real time on code security, agent work, and token efficiency. Whether you compete or spectate, you'll walk away with sharper instincts for writing prompts that produce secure, production-ready code — plus food, drinks, and retro games. Compete in person at the AWS Builder Loft SF on May 7 or join the online tournament. Over $23,500 in prizes up for grabs, hosted by Symbiotic Security.

🗓️ Monday, May 4th
📍 Computer History Museum, Mountain View, CA

AgentCon Silicon Valley is built for developers and technical leaders working on AI agents, with sessions and workshops covering multi-agent orchestration, MCP tool integration, and production deployment patterns. Speakers include engineers and founders from Microsoft, GitHub, Pydantic, Docker, Neo4j, Pendo, Arize AI, Vectorize, Mendral, and Edgee. Free to attend, includes access to the Computer History Museum.

🗓️ May 12-14th
📍 Mariott Marquis, San Francisco CA

AI Council is the IKYK technical conference for builders in AI. Hear from the co-inventor of ChatGPT. Creator of DuckDB. Creator of Codex. 1,500+ engineers. 10 tracks. Zero hype. Join teams from OpenAI, Anthropic, Snowflake, Databricks, Hugging Face, Vercel, and 100+ more.

Register

🗓️ Tuesday, May 5th
📍 Los Angeles, California

We're opening the HQ for AI in SoCal. Join us at our brand new offices in the heart of the LA Arts District for a private evening of great drinks, food and conversation with other AI builders.

To eat, we'll be serving delicious Mexican food, margs and mixed drinks from Damian - it's only right, it's Cinco De Mayo.

We'll also have some swanky gifts to give away via a raffle.

So join us at our brand new space where AI builders meet - no presentations, just a great atmosphere, people and food.

​About Us: ZeroClick is building the Ads Platform for AI. Backed by 55M in funding from top VCs, we're deeply involved in building the 'agentic web', and are excited to share more in person.

🗓️ Friday, May 1st
📍 San Francisco, CA

Video is becoming the richest interface in computing and the tooling is finally catching up. Top developers, creatives, and builders come together for a fast-paced hackathon exploring what's possible with real-time video, generative media, and multimodal systems. Hands-on access to APIs from fal, Overshoot, and Mux, with teams hacking for 4 hours then demoing live. Hosted by a16z. Approval required.

This Week in SF:

🗓️ Tuesday, April 28th. 📍 San Francisco, CA

Air Street Capital is hosting their SF AI meetup,bringing together researchers, engineers, founders, and investors from across the AI community. The lineup includes Nathan Benaich presenting the tl;dr of the 2025 State of AI Report, Anthropic's Sholto Douglas, and Odyssey CEO Oliver Cameron, followed by a happy hour for networking.

🗓️ Monday, April 27th. 📍 Financial District, San Francisco, CA

A curated evening for developers and technical founders ready to ship with Claude. Featuring a keynote from BlackRock's AI Investment Strategist, a special guest from Anthropic's Claude Code team, a live 50-minute build session, and a team showcase with Anthropic credits as prizes. Hosted by AI Collective and G2C Ventures, sponsored by Anthropic.

Register

🗓️ Wednesday, April 29th. 📍Chuo Hall, UC Berkeley, CA

NOVA's Berkeley Robotics & AI Conference brings together academics, industry leaders, startups, VCs, and policymakers alongside top Berkeley students to dig into where robotics and AI stand today and where they're headed next. Expect keynotes from NASA Ames' Terry Fong and NVIDIA/Stanford's Marco Pavone, panels on autonomy integration, hardware funding, and the social impact of ubiquitous robotics, plus a pitch competition and networking dinner.

Register

This Week in NYC:

🗓️ Tuesday, April 28th 📍Manhattan, NY

The biggest and longest-running data and AI meetup in the country, hosted by FirstMark Capital. Since 2012, Data Driven NYC has featured CEOs and founders from Snowflake, Databricks, Perplexity, Ramp, and more. This edition features a live demo from Ramp Labs showcasing their latest agentic innovation. Always sold out — arrive early.

🗓️ Tuesday, April 28th 📍 230 Fifth Rooftop Bar, New York, NY

LlamaIndex and Linkup take over a rooftop venue for a night of custom cocktails, food, and conversations about the future of AI during NYC Fintech Week. For fintech builders, agent engineers, and anyone pushing the boundaries of what AI can do with real-world data.

🗓️ Tuesday, April 28th 📍 26 Broadway, New York, NY

What does it mean to write rules for an AI? In this hands-on workshop, you'll draft amendments to Claude's actual published constitution, query the model to see if your ideas are already there, then red-team each other's work to find where the rules break. No technical background required.

Planning an upcoming event? Submit an event to our AI Event Feature.

Final Note…

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