BuildFest: Demos & Challenges
What if you could see 10 AI tools in action, try them yourself, and use them to solve real problems — all in one session?
Buildfest: Demos and Challenges is a demo day, hands-on event where sponsors will show you what their tools can do, and then give you a small challenge to solve.
No long workshops. No hours of setup.
You’ll see → try → build → solve.
Whether you're a developer, student, founder, designer, researcher, or just curious about AI, you can jump in at your level.
Event Format
You’ll start with a set of 10 sample datasets covering different real-world problems. You can choose one of them to work with, or bring your own dataset and problem.
PS: You can convert the pdf to excel through online convertor
Pick a problem
You can work on problems like: Build a system that creates study plans for students, Help shoppers find the right product based on their needs, Automate information extraction and processing from invoices, Build an AI travel planner, Summarize notes and extract important actions, Match candidates to jobs and help recruiters screen applications, Analyze restaurant data and identify inventory/demand problems, Build an AI system that answers common customer questions, Turn a simple idea into a structured content workflow, Find and evaluate promising problems and ideas or choose your own problem and build something that matters to you.
How It Works
Each sponsor will have a short demo + challenge.
First, they'll show you their product in action and explain what it does, why it is useful, and how you can use it.
Then you'll get a small challenge where you can try the tool yourself.
You don't need to use every tool. Use whichever sponsor tools make sense for your problem — one, several, or all of them.
The goal is to understand how each tool can be used and then combine the right tools to solve a problem.
Demo Schedule
Demo Schedule
4:30–4:35 PM — Physical AI Room @ Whitney Xiao
Welcome, event overview, and introduction to the demo session.
4:35–4:40 PM — BuilderBase @ Sean Chiu
Create better events with BuilderBase.
4:40–4:50 PM — Tenki @ Colin Lowenburg
Run code and AI workloads reliably in sandboxes and cloud compute.
4:50–5:00 PM — Flatkey @ Sofia Kao
Access hundreds of AI models through one API and compare their results, speed, and cost.
5:00–5:10 PM — FinChip @ Gary Yang
Give AI agents reusable skills to perform specific tasks more reliably.
5:10–5:15 PM — Kylon @ Saurabh Khire
Create a team of AI agents to run a business process and know when to involve a human.
5:15–5:25 PM — Ask the W @ Yezhisai Murugesan
Figure out what to build with AI, what to automate, and where humans add the most value.
5:25–5:35 PM — Rocket Ride @ Joe Maionchi
Build AI and data pipelines directly in your IDE, from raw data to structured output.
5:35–5:45 PM — Sartorial @ Sumit Jagdale
Discover and recommend products using context like fit, color, material, reviews, and images.
5:45–5:55 PM — Wasmer @ Ayush Ojha
Package and run code anywhere with WebAssembly.
5:55–6:05 PM — PromptQL @ Jakob Prince
Turn team conversations and questions into actionable results with AI.
6:05–6:15 PM — Unlimit @ Robin Meister
Move money across borders by connecting global payments, financial accounts, and digital asset rails.
6:15–6:25 PM — Lore @ Kaia Colban
Bring people and AI agents together to collaborate on work-in-progress and learn from each other.
6:25–6:35 PM — Massive @ Jason Gellman
Give AI agents reliable, real-time access to the web across 195+ countries.
6:35–6:45 PM — Light Sage @ Sean Er
Help AI agents discover, evaluate, and use your APIs, CLIs, and MCPs more effectively.
6:45–6:50 PM — Bridge US @ Vin Wanfan
Match the right people with each other at events.
You Can Mix and Match Tools
The challenges are not isolated.
You can use one tool, several tools, or all of the sponsor tools to solve your problem.
For example, you could:
Choose a problem → use Ask the W to plan it → use Flatkey to choose a model → build a pipeline with Rocket Ride → create multiple agents with Kylon → do code review in Tenki → Run workload in wasmer.
Or ignore that entire workflow and create your own.
The point is to experiment and discover how different AI tools fit together.
Sponsors
Tenki
Tenki provides sandbox environments, cloud compute, and runners for executing code and workloads. It gives builders a place to experiment, run, and scale their work.
Rocket Ride
Rocket Ride helps developers build AI and data pipelines directly in their IDE. It makes it easier to connect data, AI models, processing steps, and outputs into repeatable workflows.
Flatkey
Flatkey is a unified access layer for AI, connecting teams to 328+ official AI models through one API. It supports models from providers such as GPT, Claude, Gemini, DeepSeek, Qwen, and more, with transparent pricing and automatic failover.
FinChip
FinChip provides agent skills that give AI agents reusable capabilities for performing specific tasks. Skills can help make agents more useful, structured, and consistent.
Kylon
Kylon helps you create AI agents that can run business processes. You can turn workflows into agents that understand tasks, use tools, and take actions.
Ask the W
Ask the W helps you figure out what is worth building with AI. It helps identify good ideas, tasks that can be handled by agents, places where human judgment is needed, and the next steps to take.
Sartorial
Sartorial helps make products more intelligently discoverable and recommendable. It adds context such as social proof, material, fit, color, promotions, image meaning, and brand-specific ranking judgment to product discovery.
Wasmer
Wasmer provides a way to execute WebAssembly universally. It helps developers package and run code across different environments in a portable and consistent way.
PromptQL
PromptQL is a multiplayer AI workspace with a built-in Wiki for AI-first teams. Think of it like Slack for teams working with AI — where conversations can turn into shared knowledge, decisions, and execution.
Unlimit
Unlimit is the global financial infrastructure for the borderless agentic economy. Designed to bridge the gap between fragmented local markets and the future of autonomous commerce, Unlimit provides the programmable operating layer for the world’s most ambitious businesses.
Light Sage
Light Sage builds infrastructure for the agent economy, helping companies track and improve how AI agents discover and use their APIs, CLIs, and MCPs. It also created DevToolArena, a benchmark for developer tools.
Massive
Massive provides web access for AI agents, models, and data pipelines through millions of volunteer devices across 195+ countries. Its API enables reliable, real-time access to websites at scale.
Lore
Lore enables teams and their AI agents to collaborate on work-in-progress across tools like Claude, Codex, and Cowork. It brings knowledge work out of silos so people and agents can learn from each other as they work.
AdaL
AdaL is an automation-first agent harness designed to get more done with less of your time. She combines personality, skills, and memory to become a personalized agent that can work alongside you.
Hosts & Partners
Crewbase Collective (Saurabh Khire - Founder)
Crewbase Collective runs hackathons, builder events, and community experiences across San Francisco. They bring builders together to learn, experiment, and create new ideas.
BuilderBase (Sean Chiu - Head of Ambassedor)
BuilderBase is a platform for running world-class hackathons. It helps organizers create better events while giving companies a high-ROI channel for distribution, talent, and product adoption.
AI House (Deepak Chawla - Founder)
AI House is an execution-first community for AI builders focused on real outcomes. It brings together engineers, founders, and builders who want to build, ship, and launch real AI systems.
NERDCONF (Alex Marin - Founder)
NERDCONF brings highly motivating and educational technology talks to audiences across Argentina, featuring speakers and experts from the technology world. Their goal is to connect the community with people, ideas, and opportunities from the tech ecosystem.
Articuler.ai (Gary Li - Head of Growth)
Articuler.ai helps people find the right professionals for their goals — whether that's raising a round, finding a co-founder, or entering a new market. It matches people based on intent and provides context and personalized outreach strategies to help turn introductions into meaningful connections.
Bridge US (Vin Wanfan - Founder)
Bridge US is an AI-powered networking platform for conferences and events. It helps attendees find the right customers, partners, engineers, investors, and other connections, while helping organizers increase attendee satisfaction and demonstrate measurable value to sponsors and exhibitors.
WeAreDevelopers
WeAreDevelopers is a global platform for developers and AI professionals to grow, connect, and lead in the age of AI. Millions of professionals use its year-round platform for skills, expert content, careers, and community. Its flagship events across Europe, North America, and India bring together leading engineers, tech leaders, and companies shaping the future of technology.
Physical AI Room (Whitney Xiao - Founder)
Building a curated network connecting the people building, funding, and deploying the future of robotics and physical AI
https://physicalairoom.com/
RocketRide
RocketRide is an open-source, developer-native AI meta-harness. Build, debug, and deploy production AI workflows right inside your IDE. And with RocketRide Cloud, teams can offload the complexity of AI infrastructure and focus on building solutions, with cost-efficient execution through our proprietary model server, shared pipelines for collaboration, higher performance, and seamless scalability.
🎁 Free credits: We're giving away free credits for RocketRide Cloud, 100% off your first purchase with a promo code. Join the Discord to grab yours.
📖 Step-by-step guide: Setup, demos, and how to build on RocketRide (Cloud + open-source): click here
🚀 Submit your project: Post it in the #showcase channel on Discord. Make sure to include your project’s GitHub link and all your .pipe files (import them from RocketRide Cloud). Need help? Just ask our bot in #support, whether it’s about your project or the tools.
Event Terms & Consent
By registering, you agree to the event terms and conditions. RocketRide reserves the right to refuse admission or remove attendees at its discretion to keep things safe and enjoyable for everyone.
Photography and video recording will take place throughout the evening and may be used by RocketRide for future marketing, promotional, and community content. By registering, you also consent to receiving the RocketRide newsletter and updates about future events at the email address you provide. You can unsubscribe anytime via the link in any email.
Spots are limited. Register now and build the future of Enterprise AI.
🔥 Seats are limited! Register now and build the future of Data & AI with us!
We will have food and drinks as well
Come Build
Bring a problem you're curious about, pick a dataset, try the tools, and see what you can build.
No long workshops. No need to know every tool beforehand. Just pick a challenge and start building.