Abstract

Abstract is a venture capital firm based in San Francisco with $1.8 billion in assets under management.

[Abstract @AbstractVC]

We’ve been quietly building Abstract for 9 years. Thank you to @patrick_oshag and @domcooke @joincolossus for giving us the opportunity to share our story.

We’re just getting started!

https://t.co/lYk1q9N0E7

[Aaru @aaruHQ]

We’re announcing our alliance with @EYnews, strengthening our conviction that the businesses who win will be those that best understand outcomes before they occur.

[Ramtin Naimi @ramtinnaimi]

OuterSignal’s platform unlocks a new paradigm for agentic personalization. Their growth has been remarkable and we’re proud to back them as they power  delightful marketing and experiences for all consumer businesses.

[Aaru @aaruHQ]

Simulation has the potential to be transformative, but only if it's accurate. Today, we're sharing results of a comprehensive evaluation across 2,993 questions, with an industry-leading mean TVD of 7.62% and an MAE of 3.53%.

More below, including the full post on our site.

[Pete Cooling @PeteCooling]

Welcome to Atum.

That’s what we tell every new partner when they first touch the network. And now we’re saying it to you.

Because today, @atumhq, the open payments network, a first of its kind, is live.

We picked the date intentionally. Today, September 22, marks the autumnal equinox (in the northern hemisphere), a threshold through which the world passes, from one season into another. Atum occupies a similar boundary: between light and darkness, chaos and order, ending and renewal. Atum, as a platform, is positioned at the transition from closed, institution-specific payment systems to an open, programmable network.

Atum is also the creator god symbol in ancient Egypt. Atum is the first, the primordial, and the originating god of creation.

Atum provides the basic building blocks for payments and commerce - the infrastructure, tooling, products and services that make money move the way it ought to.

Our team is comprised of leading payments and onchain experts from companies like @Visa, @coinbase, @chainlink, @CashApp, @tempo, and more.

It’s a new world for payments and commerce.

And it is my ultimate pleasure, passion, and life’s purpose to introduce Atum, the open payments network. We are so glad you’re here.

Welcome to Atum. We do it together.

→ https://t.co/rheFcWqOzO

[Chase Lochmiller @ChaseLochmiller]

I’m thrilled to share that @CrusoeAI has raised $3.9b in our Series F valuing the company at $30.9b and providing the growth capital necessary to accelerate the abundance of energy and intelligence. 8 years in and what a journey it’s been with @Electron_Cowboy. The company is firing on all cylinders right now and our growth opportunities have never been bigger. To everyone who’s been a part of it along the way, thank you! We’re just getting started!! 🚀🚀🚀

[Camille van Horne @camillevanhorne]

Beyond excited to share that @highstock_x has raised a $30M Series A led by @a16z with participation from @GreylockVC, @AbstractVC, @Daybreak_Fund, and angels.

We are doubling down on our mission of creating value for brands with unproductive inventory. With this raise, we are expanding our team and building on our success in beauty to unlock a new category: apparel.

@omooretweets, @venturetwins and @jeff_jordan are the right partners to take this company to new heights - they've invested in great marketplaces like Instacart (I may be biased :) ), and have studied how AI will scale marketplace models that were previously too labor intensive to be financially viable.

Thank you to our angels: @Max, @lennysan, JJ Zhuang (Instacart) and John Adams (Instacart).

Most of all, thank you to our customers and team. We would not be here without you.

Read my reflections on our journey below.

[Ramtin Naimi @ramtinnaimi]

Excited to be investing in ATOMS and partnering with @travisk as he takes on one of the biggest opportunities in technology.

Travis has a rare ability to build category defining companies by reimagining complex, real world systems. His vision for Industrial AI, bringing software, robotics, and AI together to transform the world’s largest physical industries, has the potential to reshape how goods are produced, moved, and delivered.

We’re excited to support the ATOMS team as they build for the Age of Atoms.

[Neil Movva @neilmovva]

Samir Menon @blintzbase and I are thrilled to announce Sail @sailresearchco ! We build infrastructure for long-horizon agents: inference served at unbeatable prices-per-token for open models, plus sandboxes designed to run for days, weeks, or longer.

We've raised $80M, w/ our seed led by @Sequoia
and series A led by @KleinerPerkins. We're using this capital to build the most efficient infrastructure for long-horizon agents.

What makes agents so different? Unlike a human waiting at a keyboard (top priority: speed), agents need scale, reliability, and sustainable cost. Sail finds this efficiency everywhere in the stack: we carefully choose our chips, write custom inference engines, and run a global controller that fully utilizes every computer in our fleet. Tight integration from silicon to API lets Sail open up the cost / latency frontier to our customers - the most patient agents can now access 10x more intelligence per dollar.

We're excited to be working with great companies like
@parallelweb, @detaildotdev,@Jackandjillai, and @quadrillion_ai to deploy long-horizon agents with trillions of tokens.

Our team is thoughtful in our engineering craft and relentlessly ambitious in our pursuit of peak performance. We previously trained at companies like NVIDIA, OpenAI, Google, and so many trading firms. Now we're ready to do the work that will define our careers, in the most compute intensive market of all time.

Welcome to the era of abundant intelligence. We can't wait to build with you!

[Ramtin Naimi @ramtinnaimi]

Nico is a force! Proud to be backing him and the team at Telepatia!

[Ramtin Naimi @ramtinnaimi]

🚀

[Ramtin Naimi @ramtinnaimi]

We’re excited to double down in @NewLimit’s $435M Series C.

NewLimit is one of the most ambitious companies we’ve ever backed. Excited to see what they accomplish over the next decade.

[Ramtin Naimi @ramtinnaimi]

Congrats to @SocketSecurity on their Series C at a $1B valuation.

Security is a winner-take-all market. The company that sees the most attacks builds the best detection, which attracts more customers, which in turn surfaces more attacks. Socket’s flywheel is operating at scale now.

We backed @feross before the market fully appreciated how large this category could become, and the pace at which enterprises have consolidated around Socket over the last year has surpassed every benchmark we track.

[Ramtin Naimi @ramtinnaimi]

Congrats to @faionur and the @thestatusai team on their launch!

Status is building a new kind of AI native entertainment platform. The engagement metrics are already some of the strongest we’ve seen in consumer AI, and it’s still early.

Proud to have led their round.

[Ramtin Naimi @ramtinnaimi]

Today we’re proud to announce that we’re leading Dust’s $40M round.

Most enterprise AI is still single-player. Dust is multiplayer, humans and agents collaborating together, with knowledge compounding across the organization.

300,000+ agents have already been deployed on the platform.

Dust isn’t just building AI tools. They’re building the infrastructure for AI-native companies.

Excited to partner with @gabhubert, @spolu , and the @DustHQ team.

[Ramtin Naimi @ramtinnaimi]

Congrats to @Vapi_AI on this latest raise. Great product and one of the hardest working teams I know. Proud to be one of their earliest backers!

[Ramtin Naimi @ramtinnaimi]

World class team achieving great results. We’re proud to have been early supporters.

[Ramtin Naimi @ramtinnaimi]

The @p0 team is ripping. Very excited to be involved. 🚀

[Ramtin Naimi @ramtinnaimi]

Congrats to @yoland_yan and the @ComfyUI team! They’re building something special.

[Ramtin Naimi @ramtinnaimi]

Excited about this one!

[Ramtin Naimi @ramtinnaimi]

Congrats to the @extradotemail team on their launch. Email should feel effortless, and Extra makes it actually enjoyable. A beautiful inbox built around your life, not just another place to sort messages. Thoughtful product, clean design, and a fresh take on something billions of people use every day. Excited to watch this one grow. 🚀