Two Huge Exits Show the… | Newcomer Newsletter Summary

1. Key Themes

Theme 1: The Megafund Model Is Being Validated — At Massive Scale

a16z's infrastructure bets on Cursor and OpenRouter generated over $8 billion in combined value on roughly $320 million in total investment. This vindicates the megafund thesis that concentrated, high-conviction sector bets can generate VC-level returns even at institutional scale.

"The value of a16z's combined outcomes in the two companies is north of $8 billion, on total investments that our sources pegged at about $320 million."

"a16z is showing that innovative approaches and megafund muscle are a good match for the AI era."

Theme 2: AI Infrastructure Is the Hottest Investment Category in Venture

Both exits — Cursor (AI coding) and OpenRouter (LLM routing marketplace) — are infrastructure-layer plays, not applications. a16z's dedicated AI infra fund raised $1.25 billion in 2024 and $1.7 billion more in 2025, signaling where smart money is concentrating.

"The firm brought in $1.25 billion for its first dedicated AI infra fund in 2024, as part of a $7.1 billion overall fundraise. It quickly followed that with $1.7 billion more at the beginning of this year."

"Behind the victories sits the firm's infrastructure practice helmed by general partner Martin Casado, who oversaw term sheets for both Cursor and OpenRouter and held a seat on Cursor's board at the time of the acquisition."

Theme 3: Frontier AI Revenue Is Exploding, But Growth Narratives Are Under Pressure

OpenAI and Anthropic are posting extraordinary revenue numbers for companies barely three years into commercialization, but both face scrutiny as they march toward mega-IPOs — because market expectations have gotten ahead of even exceptional performance.

"Anthropic told investors it had annualized revenue of $65 billion... and that it was projecting annual revenue of $190-200 billion by 2028."

"OpenAI had recently told investors it generated $6.7 billion last quarter — up 18% from the previous quarter and significantly below the $11.5 billion that Anthropic reportedly did during the period."

"Even Anthropic's amazing annualized revenue fell a bit short of some of the craziest expectations, like YipitData's projection of around $80 billion annualized revenue."

Theme 4: Private Markets Are Reshaping What "Exit" Means for LPs

The traditional IPO or acquisition exit is being supplemented — and sometimes replaced — by secondary liquidity mechanisms in private markets. LPs are accepting paper gains on Stripe and SpaceX, and Stripe is now using its stock as acquisition currency in a manner previously reserved for public companies.

"The firm is also a poster-child for the idea that exits aren't everything anymore given the growth of private markets. So far, LPs have been willing to go along with that, taking paper gains on Stripe and SpaceX and many others. Now Stripe is showing it can use its shares as currency public-company-style."

Theme 5: Unicorn Formation Is Accelerating Dramatically

The pace of new billion-dollar companies is sharply up year-over-year, with Sequoia leading the pack — a signal of both the AI investment boom and the increasing willingness of markets to assign premium valuations.

"Some 250 have reached a $1 billion valuation or higher, up from 193 for all of 2025."

"Sequoia tops the leaderboard for most portfolio companies in this new crop of unicorns, with 52 investments in 29 companies."

2. Contrarian Perspectives

Perspective 1: Megafunds Can Deliver True VC Returns — The Skeptics Were Wrong

The longstanding critique is that funds at a16z's scale are too large to generate the returns required to justify the venture risk premium. The Cursor and OpenRouter outcomes — combined $8B+ on $320M invested — are direct empirical evidence against that view. a16z's original 2009 fund, once seen as dangerously large at $300M, returned 6x DPI and sits in the top 5% of its vintage.

"There's been a debate about whether megafunds could truly deliver VC-level returns at such hefty scale... yet per Newcomer's reporting last fall, that first gamble paid off spectacularly well: it returned 6x in DPI and sits in the top 5% of funds from that year."

Perspective 2: OpenAI May Be Losing the Revenue Race to Anthropic — Despite Being the Category Pioneer

The conventional wisdom is that OpenAI is the dominant AI company. But Anthropic's annualized revenue of $65B versus OpenAI's $6.7B in a single quarter (implying a lower run rate) suggests Anthropic may be growing faster. OpenAI's CFO had to publicly counter the narrative that its growth was "tepid."

"OpenAI had recently told investors it generated $6.7 billion last quarter — up 18% from the previous quarter and significantly below the $11.5 billion that Anthropic reportedly did during the period. The biggest were for OpenAI, which scrambled to counter the narrative that its growth was tepid."

Perspective 3: Crypto Origins Can Lead to AI Infrastructure Wins

OpenRouter — now a ~$8B company acquired by Stripe — originated as a crypto marketplace. This suggests that the infrastructure and marketplace instincts developed in crypto transfer effectively to AI, and that crypto-native founders and investors may have a structural edge in building AI infrastructure.

"OpenRouter, in fact, traces its origins to the crypto business — co-founder Alex Atallah was building a marketplace for digital assets before pivoting to a marketplace for LLMs. And acquirer Stripe is keenly interested in tokenization and has already bought various crypto companies."

3. Companies Identified

Cursor

Description: AI coding assistant
Why mentioned: Acquired by SpaceX for $60 billion in stock — the largest buyout ever of a venture-backed startup; a16z's most significant exit
Quote: "SpaceX this week closed its acquisition of Cursor for $60 billion in stock, the largest buyout ever of a venture-backed startup."

OpenRouter

Description: Marketplace for LLMs (large language models)
Why mentioned: Acquired by Stripe for ~$8 billion; originated as a crypto marketplace; a16z's second massive exit of the week
Quote: "Stripe agreed to acquire OpenRouter for around $8 billion, per our sources, in what Axios reported to be a mix of cash and stock."

a16z (Andreessen Horowitz)

Description: Venture capital and diversified asset management firm
Why mentioned: Central subject of the article; validated megafund model through two historic exits; now at $106B AUM
Quote: "In March, a16z filed that it had $106 billion in assets under management."

OpenAI

Description: Frontier AI lab; creator of ChatGPT
Why mentioned: Revenue figures reported ($6.7B in Q); planning mega-IPO; growth narrative under pressure
Quote: "OpenAI had recently told investors it generated $6.7 billion last quarter — up 18% from the previous quarter."

Anthropic

Description: Frontier AI lab; maker of Claude
Why mentioned: Reported $65B annualized revenue; planning IPO that may "smash the recent SpaceX record for biggest-ever IPO"
Quote: "Anthropic told investors it had annualized revenue of $65 billion... and that it was projecting annual revenue of $190-200 billion by 2028."

Stripe

Description: Private fintech and payments company
Why mentioned: Acquirer of OpenRouter; using its private stock as M&A currency like a public company; interested in crypto tokenization
Quote: "Now Stripe is showing it can use its shares as currency public-company-style, which works partly because the company strives to make secondaries possible."

SpaceX

Description: Aerospace and technology company (Elon Musk)
Why mentioned: Acquirer of Cursor for $60B; now public but with unclear liquidity for investors
Quote: "SpaceX of course is public now, though it's unclear if and when various investors can unload their shares, even if they want to."

Sequoia

Description: Venture capital firm
Why mentioned: Tops the unicorn leaderboard for 2026, with 52 investments in 29 newly minted unicorn companies
Quote: "Sequoia tops the leaderboard for most portfolio companies in this new crop of unicorns, with 52 investments in 29 companies."

Databricks

Description: Data and AI platform company
Why mentioned: Ben Horowitz holds a board seat; cited in DOJ investigation into a16z for potential anti-competitive board representation alongside competitor Fivetran
Quote: "Bloomberg reported the Justice Department is investigating the firm over board seats at two competing companies: Ben Horowitz at Databricks and Casado at Fivetran."

Fivetran

Description: Data pipeline/integration company
Why mentioned: Martin Casado holds a board seat; cited in DOJ investigation alongside Databricks
Quote: "The Justice Department is investigating the firm over board seats at two competing companies: Ben Horowitz at Databricks and Casado at Fivetran."

Figma

Description: Collaborative design software company
Why mentioned: Cited as a 2025 win for a16z alongside Wiz, contributing to LP returns
Quote: "This week's deals, on top of 2025 wins with Figma and Wiz, would certainly change that."

Wiz

Description: Cloud security company
Why mentioned: Cited alongside Figma as a 2025 a16z exit win
Quote: "This week's deals, on top of 2025 wins with Figma and Wiz, would certainly change that."

Thrive Capital

Description: Venture capital firm (Josh Kushner)
Why mentioned: Co-led Cursor's Series B alongside a16z; cited as another megafund succeeding in the AI era
Quote: "A16z first backed Cursor as the lead on its 2024 Series A, then co-led its Series B with Thrive shortly after."

4. People Identified

Martin Casado

Description: General Partner, a16z infrastructure practice
Why mentioned: Led term sheets for both Cursor and OpenRouter; board member at Cursor; central architect of a16z's biggest-ever week in venture; also named in DOJ investigation
Quote: "Behind the victories sits the firm's infrastructure practice helmed by general partner Martin Casado, who oversaw term sheets for both Cursor and OpenRouter and held a seat on Cursor's board at the time of the acquisition."

Matt Bornstein

Description: General Partner, a16z infrastructure
Why mentioned: Credited with initially leading the Cursor deal; recently promoted within a16z
Quote: "Many investors gave kudos to a16z infra GP Matt Bornstein for initially leading the Cursor deal. Casado acknowledged his role in a post on Bornstein's promotion from late January."

Anjney Midha

Description: Former a16z infrastructure team member
Why mentioned: Led OpenRouter's seed round investment while at a16z; left the firm shortly after; a disputed figure in credit-claiming around the OpenRouter deal
Quote: "Anjney Midha, formerly of the a16z infra team, scored the lead slot on OpenRouter's seed round in 2025, with Casado on the investment memo. But Midha left the firm shortly after that deal."

Ben Horowitz

Description: Co-founder and General Partner, a16z
Why mentioned: Holds board seat at Databricks; named in DOJ investigation into a16z over board seats at competing companies
Quote: "Bloomberg reported the Justice Department is investigating the firm over board seats at two competing companies: Ben Horowitz at Databricks and Casado at Fivetran."

Alex Atallah

Description: Co-founder, OpenRouter
Why mentioned: Previously built a crypto marketplace before pivoting to OpenRouter; illustrates crypto-to-AI founder trajectory
Quote: "Co-founder Alex Atallah was building a marketplace for digital assets before pivoting to a marketplace for LLMs."

Sarah Friar

Description: CFO, OpenAI
Why mentioned: Publicly communicated to employees to counter a narrative of tepid growth after WSJ revenue report
Quote: "OpenAI CFO Sarah Friar told employees that the company's revenue run rate is up 35% quarter to date and that its enterprise revenue run rate is up 50% quarter to date."

Dario Amodei

Description: CEO and co-founder, Anthropic
Why mentioned: Working to receive a new class of stock with extra voting rights ahead of Anthropic's IPO to shield founders from shareholder pressure
Quote: "Anthropic has been working to give Dario Amodei and other co-founders a new class of stock with extra voting power in order to shield them from external shareholder pressure."

Chris Dixon

Description: General Partner, a16z (crypto practice)
Why mentioned: Cited alongside Casado as having played a key role in making the OpenRouter investment happen, countering credit claims by departed partner Midha
Quote: "A16z has publicly stressed the role of Casado and Chris Dixon in making the OpenRouter investment happen."

5. Operating Insights

Insight 1: Infrastructure-Layer Bets Compound Faster Than Application-Layer Bets in Platform Shifts

Both Cursor and OpenRouter are picks-and-shovels plays sitting beneath AI applications. Their acquisition at $60B and $8B respectively — within a very short time frame after founding — suggests that in a platform shift, the infrastructure layer gets acquired or scaled first. Operators building in AI should consider where they sit in the stack.

"The value of a16z's combined outcomes in the two companies is north of $8 billion, on total investments that our sources pegged at about $320 million. The speed at which they happened was also extraordinary."

Insight 2: Board Seat Strategy Is a Legal Risk for Cross-Portfolio Investors — And a Moat for Others

a16z's DOJ probe for holding board seats at competing companies (Databricks and Fivetran) signals that regulators are watching how megafirms use governance positions across the AI stack. For operators, this cuts both ways: it may create openings if a16z must divest influence, and it's a warning for any firm trying to replicate the cross-portfolio board strategy.

"A case against a16z could make it harder for megafirms to spread their bets across the AI stack."

Insight 3: Counternarrative Management Is Now a CFO Priority at AI Companies

OpenAI's CFO took the unusual step of sharing internal revenue metrics with employees the day after an unflattering press report — signaling that in the pre-IPO environment for frontier AI labs, narrative control is an active operational discipline, not a PR afterthought.

"The day after the Journal's story, OpenAI CFO Sarah Friar told employees that the company's revenue run rate is up 35% quarter to date and that its enterprise revenue run rate is up 50% quarter to date."

6. Overlooked Insights

Insight 1: Stripe's Crypto Ambitions May Be a Strategic Driver of the OpenRouter Acquisition

The article notes almost in passing that Stripe "is keenly interested in tokenization and has already bought various crypto companies" — and that OpenRouter's founder came from the crypto world. This raises the possibility that the OpenRouter acquisition is not purely about LLM access, but part of Stripe's broader crypto-plus-AI infrastructure play. This angle is underdeveloped relative to its potential strategic significance.

"Acquirer Stripe is keenly interested in tokenization and has already bought various crypto companies."

Insight 2: Most of a16z's Post-2016 Funds Still Haven't Returned Meaningful Capital

Buried in the Cursor/OpenRouter celebration is a materially important fact: despite enormous AUM growth, the majority of a16z's funds raised after 2016 had not delivered meaningful DPI to LPs as of end-2024. This week's exits are helping fix that — but it underscores that vintage years matter enormously and that paper gains in private markets can mask prolonged illiquidity.

"Most of its post-2016 funds had failed to deliver meaningful DPI to limited partners as of the end of 2024, according to the return data obtained by Newcomer."