The three-day NYC Founder House event wraps up today with final presentations from participating teams. Founders spent the past few days building onchain products on the Arbitrum platform.
Event Highlights:
- Teams present their builds from the intensive three-day program
- Closing ceremony and dinner to follow presentations
- Focus on developing the next generation of onchain businesses
This event follows the February Buildathon that supported 500+ builders. Selected teams from both programs will receive invites to the upcoming Arbitrum Mentorship Program, an eight-week initiative starting April 13th offering hands-on technical guidance, go-to-market support, and investor introductions.
The Arbitrum Mentoring Program concludes with a Demo Day, where teams present to leading investors and ecosystem partners. Top three teams will receive $100K in non-dilutive awards, recognizing standout execution and progress.
What's next for our founders and builders? Our 3-day, in-person Founder House kicks off this week in NYC (March 6), helping teams including Buildathon winners ship onchain. Then on April 13th, our 8-week Mentoring Program begins, supporting 15 early-stage teams launch on the
Over February, we hosted the Open House NYC Buildathon to help 500+ builders go from idea → product. Today, we're thrilled to announce the winners of the $60K Buildathon prize. 🥇 @TiltProtocol 🥈 @Fangorn_network 🥉 EqualFi Read more. 👇 blog.arbitrum.foundation/open-house-nyc…
Today is also the last day to apply to NYC Founder House on March 6th. Teams will get: - Up to $340K in prizes + grants - Hands-on mentorship (product, infra, GTM) - Direct access to ecosystem leaders like Robinhood, Alchemy & more If you’re building in AI, DeFi, or
Participated in Open House Buildathon or joining our NYC Founder House in March? Winners from both will also receive invites to join the Arbitrum Mentorship Program.
Starting on April 13th, teams will be paired with a dedicated mentor and supported through structured sessions and periodic check-ins throughout the program from @variational_io, @pendle_fi, @fhenix, @GMX_IO and @RobinhoodApp Chain. Teams receive structured support on: -
ICYMI: Applications are open for the Arbitrum Mentorship Program. Starting April 13, early-stage teams get an 8-week path from idea → launch on the Arbitrum platform with: • Product strategy & go-to-market design • Network design and liquidity strategy • User acquisition
Introducing the Arbitrum Mentorship Program. An eight-week program starting April 13th, where 15 early-stage teams get access to: - A clear path from idea to launch on the Arbitrum platform with infra guidance, ecosystem support, and distribution channels - Hands-on mentorship
If you’re an early-stage team at MVP, pre-seed, or seed and looking to go onchain, apply for our Mentoring Program today: Applications close on April 7th. Lets go onchain together. tally.so/r/aQdj2W
Today is the last day to apply for Arbitrum NYC Founder House. A curated IRL experience built to help founders ship onchain: - Up to $340K in prizes + grants - Mentorship from Robinhood & Arbitrum Ecosystem - Shared liquidity and mature primitives on Arbitrum - A platform
Founder House connects founders to: - Mentorship from Robinhood & Arbitrum Ecosystem - Shared liquidity and mature primitives on Arbitrum - A platform designed to operate predictably as your business scales Learn more: openhouse.arbitrum.io
The Buildathon program focused on supporting teams in 3 key areas: 1. Technical readiness: Hands-on workshops teaching teams how to build effectively on the Arbitrum Platform, from core infra to best practices. 2. Product execution: Guidance on building clear, user-focused
3 days left to apply for Arbitrum NYC Founder House. An IRL builder experience starting on March 6th for early-stage teams looking for: - Up to $340K in prizes + grants - Hands-on mentorship (product, infra, GTM) - Direct access to ecosystem leaders like Robinhood, Alchemy &
Learn more about the program here: blog.arbitrum.foundation/introducing-th…
Yesterday: founders locked in building onchain. Today: the final day of NYC Founder House. Teams will present what they built over the past few days before we close with a ceremony and dinner. The next generation of onchain businesses is being built on the Arbitrum platform.
Arbitrum Everywhere Episode 4: Ethereum Scaling Roadmap Discussion
The fourth episode of Arbitrum's *Arbitrum Everywhere* series features Anthony Sassano, founder of The Daily Gwei. **Key Discussion Points:** - How Arbitrum integrates into Ethereum's long-term scaling strategy - The impact of upcoming Ethereum upgrades on the broader ecosystem - Arbitrum's role in strengthening Ethereum's infrastructure This follows the third episode with Offchain's CEO, which explored institutional adoption through platforms like Robinhood. [Watch the full episode](link in original post)
Arbitrum Announces Multidimensional Gas to Boost Network Capacity

Arbitrum is preparing to launch **multidimensional gas**, a technical upgrade designed to increase network capacity and scalability. The platform positions this development as a key factor in attracting sophisticated businesses to build programmable economies on its infrastructure. Multidimensional gas represents an evolution in how transaction resources are allocated and priced on the network. - Enhanced capacity for onchain operations - Continued focus on execution quality for scaling - Part of Arbitrum's broader platform strategy The announcement emphasizes technical execution as the foundation for enterprise adoption in the L2 ecosystem.
Arbitrum Dynamic Pricing Cuts Fee Spikes by 98% During Peak Demand
Arbitrum's new dynamic pricing system delivered significant results during a recent high-demand period across major networks. **Key Performance Metrics:** - Reduced fee spikes by up to 98% - Handled 2.4x more demand than competitors - Achieved 15% lower fees overall - Delivered ~17x less fee volatility The improvements came after the ArbOS Dia upgrade, which introduced a more sophisticated pricing model that tracks real network bottlenecks instead of relying on a single gas number. **Why It Matters:** Predictable fees enable businesses to forecast costs accurately, manage risk effectively, and scale operations reliably. This stability is crucial for programmable economies operating onchain. The system measures compute, storage, and history growth to create sustainable scaling without traditional surge pricing. [Read the full analysis](https://blog.arbitrum.io/predictability-at-peak-demand/)
🏗️ Arbitrum Open House NYC: 3-Day Founder Program Launches March 6
Arbitrum Foundation is hosting an **in-person Open House in New York City** from March 6-8, 2026. This selective 3-day program targets founders ready to deploy on-chain applications. **What founders get:** - Direct collaboration with Arbitrum teams and ecosystem builders - Product feedback and technical guidance - Hands-on support for shipping projects This follows their online Buildathon that started January 29, which offered workshops, mentorship, and $60k in prizes. The NYC event is more exclusive and focused on teams closer to launch. Applications are open now at [luma.com/openhouse-newyork](https://luma.com/openhouse-newyork?utm_campaign=oh-nyc-founder-house&utm_content=sponsor-fh&utm_medium=social&utm_source=twitter).