AI costs, AAVE buybacks, EF cuts

Brian Armstrong used the week to explain how Coinbase wants to make AI cheap enough to run everywhere inside finance. Stani Kulechov used it to defend AAVE as a cash-flowing token with automated buybacks coming. Vitalik Buterin used it to make the Ethereum Foundation smaller, poorer, and more protocol-focused. CZ used it to argue that regulation should route users toward liquidity, not away from it.

Those statements point to the same pressure point from different directions. Crypto leaders are no longer arguing only about whether assets should move onchain. They are arguing about who controls the operating layer: the exchange, the protocol, the foundation, the DAO, or the regulator.

Brian Armstrong, co-founder and CEO of Coinbase, published the week's highest-signal operating post on June 26. His claim was simple: Coinbase kept AI spend close to flat while token usage grew exponentially, and it did so through infrastructure rather than usage caps. 1

The mechanics matter because they are portable. Armstrong said Coinbase is defaulting engineers toward open-weight models such as GLM 5.2 and Kimi 2.7 through its LLM gateway; he added that 91% of employees were not hitting usage caps. 1 Coinbase then routes work by model fit, cache hits, and price, with frontier models used for planning and cheaper models used for execution. 1

The most concrete number was caching. Armstrong said LibreChat's cache hit rate moved from 5% to 60% after proper implementation. 1 His line for engineers was: "The goal isn't fewer tokens used, it's fewer tokens wasted." 1

This connects to Armstrong's June 26 Sourcery podcast appearance, where he said Coinbase has about 1,200 full-time AI agents, measured by agent working hours against 40-60 hour workweeks. 6 He also said code shipped per developer is up about 2x year over year, traditional teams of 10 are compressing to 2-4 people, and some teams now operate as one-person teams working with roughly 10 AI agents. 6

The investment angle is not that Coinbase uses AI. Many companies do. The signal is that Armstrong is publishing the internal cost-control doctrine at the same time Coinbase is pitching itself as financial infrastructure for autonomous agents. On June 28, he described Coinbase as "the financial account for the intelligence age," linking to a video about AI agents transacting onchain, stablecoin payments, Coinbase for Agents, and Coinbase Advisor. 7 The video itself was originally published on June 17, so it is background rather than a new item in this window. 8

Armstrong's market-structure posts stayed consistent with that AI thesis. He argued on June 26 that tokenized stocks are "a win for everyone" because existing holders get faster transfers and 24/7 trading, while roughly 4 billion people without brokerage access get a route into U.S. investments. 9 He also rejected the harsher bear-market framing, calling the current drawdown "Barely even a winter TBH. More like a cool breeze" in response to a chart showing Bitcoin cycle drawdowns of -93%, -87%, -84%, -77%, and -53%. 10 11

The European exchange fight produced the cleanest contrast between Armstrong and CZ, Binance's co-founder and former CEO. Armstrong promoted Coinbase's MiCA license on June 26 and offered a 5% transfer bonus for Coinbase One subscribers moving funds to Coinbase before July 13, 2026. 5 His follow-up said the bonus applied in Germany, France, Italy, Spain, Belgium, Poland, Sweden, and the United Kingdom. 5

CZ read the same situation in the opposite direction. On June 26, he wrote: "Sad to see EU cutting their users off from the best liquidity in the world. Liquidity is the best consumer protection." 4 CoinDesk reported on June 27 that Coinbase and OKX were moving to court Binance's European users after Binance failed to secure a MiCA license; OKX was offering bonuses of up to 8%, and the report said Binance had about 450 million European users. 12

The disagreement is partly legal and partly philosophical. Armstrong's public message is that regulatory approval can become a moat. CZ's public message is that user protection fails if regulation cuts users off from the deepest market. Neither statement is neutral. Each one maps to the speaker's current position in the market.

CZ also spent the week showing a more sovereign-policy version of the same argument. On June 28, he said he had just returned from the Philippines, which he described as one of Southeast Asia's most exciting digital-asset markets after rising to fourth globally in TRM Labs' Country Crypto Adoption Index. 13 He said he met Secretary Frederick Go, Philippine SEC Chair Francis Lim, and the BlockShoals team. 13

The most concrete policy detail was BlockShoals. CZ said the Philippine SEC's PhiliFintech Innovation Office gave BlockShoals in-principle approval under the StratBox framework. 13 His summary line was: "Build pathways, not walls." 13

CZ's other posts this week were less strategic but still useful for positioning. He said Binance bStocks reached $100 million in assets under management on June 25. 14 On June 28, he pushed back on a CoinBureau claim that his net worth jumped $47 billion in a year while crypto prices fell more than 50%, asking: "How is that last sentence possible?" 15

Vitalik Buterin, Ethereum co-founder and one of the protocol's most visible public thinkers, published the week's most important Ethereum governance statement on June 23. He said the Ethereum Foundation's 2026 budget is being cut by about 40%, moving from pre-2026 spending of roughly 15% of remaining funds per year toward a post-2030 target of roughly 5% per year. 3 CoinDesk and Bankless separately reported that the EF also cut about 20% of staff, or 54 people, and reorganized into five clusters: Protocol Layer, Access Layer, User Layer, Community Layer, and Institutional Layer. 16 17

Vitalik did not try to soften the human cost. He wrote: "I will not try to pretend this. I respect my EF colleagues far too much to pretend that there was not much that is lost." 3 Hsiao-Wei Wang's resignation as co-executive director brought the count of senior EF departures in 2026 to nine, according to the same reporting. 16 17

The strategic half of the message was the Strawmap. Vitalik described it as Ethereum's "third iteration," after the Merge, but with shipping that is "less Big Bang and more one-piece-at-a-time." 3 The plan spans consensus, proving, privacy, account models, state, and client architecture. 3

One practical change is the role of Privacy and Scaling Explorations, the EF research group commonly known as PSE. Vitalik clarified that PSE's dissolution as a separate unit does not mean ZKP work is shrinking. He said the number of people working on ZKP-related tasks is probably as high as ever, but the work is moving from exploration into direct integration with the Protocol and Access layers. 18

Vitalik's other original post this week was an anonymity experiment on June 22. He said he had anonymously written and published an Ethereum document of medium importance sometime this decade and invited the public to find it using AI text analysis. 19 His setup was deliberately uncertain: "I genuinely have no idea how easy or hard this is, will be very curious what comes out." 19 Community attempts were active, but no Vitalik-confirmed result appeared by the June 28 window close. 19

For builders, the Ethereum signal is mixed but specific. The foundation is cutting budget and staff. The protocol roadmap is not getting smaller. That combination raises execution risk, but it also clarifies what Vitalik wants the EF to stop doing: broad ecosystem sprawl that does not feed directly into protocol and access-layer work.

Stani Kulechov, founder of Aave, spent the week fighting the idea that AAVE is a discounted inventory overhang. On June 25, he wrote: "NO WAY we'd sell AAVE at a 70% discount lol." 2 He also said 100% of Aave Protocol and GHO revenue flows to the AAVE token under the Aave Will Win proposal, and that no protocol or product revenue flows to Aave Labs. 2

The revenue line was the part markets could underwrite. Stani said Aave is generating $134 million in annualized revenue, all of which goes to Aave DAO. 2 In a separate June 25 reply, he said Aavenomics 3.0 will include immutable and automated AAVE buybacks. 20 Aave's governance forum also showed a "Restart aave buy backs" proposal during the same June 25-28 period. 21

Stani also widened Aave's total-addressable-market narrative. On June 26, he said Aave is expanding from crypto assets into all assets through securities-backed loans and securities lending. 22 The same day, he framed gold-backed loans as part of Aave's RWA expansion and called it a long-term trillion-dollar opportunity. 23 He also said cross-chain GHO will bring predictable 4.25% savings rates across multiple networks. 24

The clearest product example came from mGLOBAL. Stani said Aave Horizon added mGLOBAL, giving qualified holders exposure to short-duration receivables finance and opening a $150 billion receivables-finance market. 25 He followed up on June 24 by saying RWAs are Aave's biggest opportunity. 26

Hayden Adams, founder of Uniswap Labs, had a narrower but still material DeFi week. On June 25, he welcomed Spark.fi's $150 million stablecoin liquidity migration to Uniswap v4. 27 Uniswap's blog said the migration includes a coming DualPool hook that can keep idle liquidity in ERC-4626 yield vaults between swaps while still making it available for trading. 28 Hayden said PYUSD/USDS became the highest-TVL pool on Uniswap, while USDT/USDS became the sixth-largest pool. 27

On June 24, Hayden also announced that users can launch token auctions directly from the Uniswap web app. 29 The Uniswap blog said the feature is powered by Continuous Clearing Auctions, supports Ethereum, Base, Arbitrum, and Unichain, and the contracts have gone through seven independent audits. 30

The shared DeFi message is clearer than the individual announcements: Aave is making revenue distribution and buybacks the center of the token story, while Uniswap is turning v4 hooks and launch tooling into market-structure products. Both are moving away from generic protocol usage metrics and toward mechanisms that investors can model.

Arthur Hayes, co-founder of BitMEX and CIO of Maelstrom, did not publish a new Substack essay during the window; the latest remained the June 8 "Reality Test" archive entry. 31 His highest-friction signal was a June 23 promotion of CARDS, the Collector Crypt token on Solana. Hayes wrote: "The ticker is $CARDS degens. The thesis is solid. The price will be pamping! Yachtzee bitches." 32

Stocktwits reported that Maelstrom published a $4 target-price report for CARDS and that Maelstrom-linked wallets bought about 6.82 million CARDS, worth roughly $2 million. 33 The research package also flagged reports that Maelstrom later sold $1.92 million of CARDS, but the full Cryptorank article was not captured; treat the exit-liquidity claim as an allegation rather than a settled fact. 34

Hayes also criticized the Trump administration's treatment of AI technology companies on June 26, writing that Trump was "starting to throw the AI tech bros under the political 18-wheeler" and adding: "Politics > Shareholder Returns!!!!" 35 The post fits Hayes' broader AI-bubble risk frame, but this week it remained a short political read rather than a full macro essay.

Andre Cronje, founder of Yearn and now the lead public voice behind Flying Tulip, broke the expected silence pattern. Between June 22 and June 28, he posted six original tweets about Flying Tulip's yields, liquidations, and revenue progress. 36 37 38 39 40

The most concrete update came on June 28. Cronje said Flying Tulip was one week away from its first $1 million in revenue, which would be $1 million in 125 days since launch. 36 He also said ftUSD was producing 13.27% annualized yield on Ethereum USDC/USDT and about 6% on Sonic. 36 On June 24, he said Flying Tulip Margin accounts had more than 30 stressed liquidations in the previous week, with an average haircut below 1% and almost dollar-for-dollar debt repayment. 39

Cronje's signal is different from Hayes'. Hayes is asking the market to believe a promotional thesis on a new token. Cronje is showing product-level yield and liquidation behavior. Both deserve scrutiny, but the due-diligence questions are not the same.

Jeff Yan, Hyperliquid's co-founder, remained silent on his personal X account for the seventh consecutive week; the research package found his last original post on May 15. 41 Hyperliquid's organization account did respond to its inclusion on Singapore's MAS Investor Alert List, saying the list is not a ban or enforcement action and that Hyperliquid remains permissionless infrastructure. 42

Sergey Nazarov, co-founder of Chainlink, also had no new original posts in the June 21-28 window; the research package found his last tweet was a June 9 retweet and his last original post was on May 19. 43 For this channel's reader, that means Chainlink's organization-level blog and product updates are not the same as a new Nazarov view and should not be treated as one. 44

The next monitoring list is narrow. Watch whether Coinbase's AI-cost play shows up in margin or developer velocity, whether Aavenomics 3.0 turns buybacks from proposal language into onchain execution, whether the Ethereum Foundation's smaller structure can ship the Strawmap without widening coordination gaps, and whether MiCA competition in Europe turns into durable liquidity migration rather than a one-time bonus campaign.