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In Today’s Issue:
🍎 Apple sends 200 of its Siri engineers to a multi-week AI coding bootcamp
🗣️ Google's Gemini 3.1 Flash TTS introduces an unnervingly expressive 70-language voice engine with SynthID watermarking
📈 OpenAI shifts its aggressive ad strategy toward click-based pricing
🚨 Top U.S. financial officials call an emergency meeting with bank executives
🧠 Finnish scientists capture real-time video of the human brain washing itself clean during sleep
✨ And more AI goodness…
Dear Readers,
Apple just sent 200 of its own Siri engineers back to school, and the curriculum is how to code with Claude and Codex, exactly two months before WWDC. That one detail tells you everything about where software development is heading in 2026, and it is only the opening scene of today's issue.
We also unpack Google's Gemini 3.1 Flash TTS and its unnervingly expressive 70-language voice engine, OpenAI's aggressive pivot to click-based advertising with an $11B revenue target by 2027, and the emergency meeting that Scott Bessent and Jerome Powell called with top bank executives after Anthropic's Claude Mythos surfaced a 27-year-old vulnerability sitting quietly inside OpenBSD.
On top of that, fresh Similarweb data shows ChatGPT's market share sliding from 77% to 57% while Gemini and Claude climb fast, Sam Altman hints that the next class of models will hand researchers career-defining discoveries, and Finnish scientists just filmed, in real time, how your brain rinses itself clean every night. Grab a coffee, this one runs deep.
All the best,
🚀 Next-Level AI Speech Gets Real
Gemini 3.1 Flash TTS introduces a major leap in AI voice generation with more natural, expressive speech and fine-grained control via audio tags, letting users shape tone, pace, and delivery using simple language. Supporting 70+ languages and offering tools like multi-speaker dialogue and exportable voice settings, it’s clearly built for scalable, high-quality applications. Plus: the addition of SynthID watermarking adds a crucial layer of trust, helping distinguish AI-generated audio from real voices.
🚀 ChatGPT Ads Strategy Evolves Fast
OpenAI is shifting its ad model toward click-based pricing and performance-driven campaigns, aiming to compete more directly with giants like Google and Meta. However, limited targeting, weak measurement tools, and basic ad formats are holding advertisers back - for now, many are cautiously experimenting with smaller budgets.
Despite these early challenges, OpenAI is pushing ambitious growth, projecting $2.4B in ad revenue this year and $11B by 2027, while rolling out upgrades like self-serve ad portals and partnerships. This is more aggressive than expected for such a new ad platform.
🧠 Anthropic Claude Mythos Emergency Meeting
The newly revealed model from Anthropic, named Claude Mythos (we reported), has triggered urgent concern after uncovering decades-old software vulnerabilities, including one 27 years old in OpenBSD, a system long considered highly secure. The discovery prompted an emergency meeting led by United States Secretary of the Treasury Scott Bessent and Chair of the Federal Reserve of the United States Jerome Powell with top banking executives, reflecting growing anxiety about AI’s rapidly advancing cybersecurity capabilities.
Beyond the immediate shock, the episode highlights a deeper tension: while AI could strengthen defenses, it may also amplify threats if misused or widely proliferated. Through initiatives like Project Glasswing and partnerships with firms including JPMorgan Chase, Amazon, and Google, Anthropic is positioning itself at the center of a race to secure critical infrastructure, before similar tools fall into less cautious hands.
Regardless, this demonstrates two things:
Anthropic's Claude is taken seriously even by the highest-ranking US officials and is therefore more than just PR and hype.
But at the same time, this is also the best PR Anthropic could wish for; the whole world is talking about Claude, his abilities, and more.
Jensen Huang – Will Nvidia’s moat persist? A wide-ranging interview with Jensen Huang covering TPU competition, Nvidia’s dominance over critical chip supply chains, geopolitics around AI chip exports to China, why Nvidia avoids becoming a hyperscaler, and how it approaches strategic investments.
“With the next class of Models you start to see people say, 'This helped me make the most important discovery of my decade or career'… Maybe not win a nobel prize on Its own, but like a significant career-defining discovery”
– Sam Altman
Apple Sends Siri Team to Coding Camp
The Takeaway
👉 Apple is sending close to 200 Siri engineers to a multi-week AI coding bootcamp, leaving only 60 people on core development and 60 on evaluation
👉 The retraining happens two months before WWDC in June, where a Gemini-powered Siri revamp is expected to debut
👉 Internal reports describe the Siri group as a laggard in AI tool adoption, while other Apple engineering teams already allocate large budgets to Claude Code and Codex
👉 The move signals that AI-assisted coding is becoming standard operating procedure across top-tier engineering orgs, not just a productivity experiment
Apple just made a quietly stunning admission: its own Siri engineers need to go back to school. According to a report from The Information, the company is sending close to 200 members of the Siri organization to a multi-week bootcamp, where they will learn how to code using AI tools like Claude Code and Codex. Roughly 60 engineers stay behind to keep core development running, and another 60 handle evaluations and safety checks.
The timing is remarkable. This retraining wave lands just two months before WWDC in June, where Apple plans to unveil the long-delayed, Gemini-powered Siri overhaul. Inside Apple, the Siri team has reportedly earned a reputation as a laggard, while other engineering groups have already burned through serious budgets on Claude Code and similar tools. Now Siri is catching up, fast.
Even Apple, the company that once defined software craftsmanship, is rewiring how its engineers build. The AI-native developer is no longer a trend, it is the baseline.
Why it matters: When Apple retrains hundreds of engineers to code with AI just weeks before a flagship launch, it confirms that AI-assisted development has shifted from optional advantage to operational necessity. The productivity gap between AI-native teams and everyone else is becoming impossible to ignore.
Sources:
🔗 https://www.theinformation.com/articles/apple-sends-siri-staffers-coding-bootcamp-latest-shakeup-organization
🔗 https://www.macrumors.com/2026/04/15/siri-engineers-ai-coding-bootcamp/
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Your Brain Runs a Nightly Rinse Cycle
Turns out, that post-sleep "refreshed" feeling is literally your brain taking a shower. Researchers at the University of Oulu in Finland have captured, for the first time in real time, how the human brain flushes itself during sleep, and they did it without injecting anyone with contrast agents.
Using an ultrafast MRI technique called magnetic resonance encephalography, combined with EEG and near-infrared spectroscopy, the team tracked water molecules sloshing through cerebrospinal fluid in 24 sleeping volunteers. The finding is almost poetic: while your heart rate slows, slow vasomotor waves below 0.1 hertz take the lead, gently pushing salty fluid through the brain to rinse out metabolic waste. And here is the twist, during sleep the usual hierarchy flips. Awake, neurons tell blood where to go. Asleep, the vascular waves start influencing the neurons.
Even better, the team is already building wearable sensors that replicate what the giant MRI scanner sees. A bedside brain-wash monitor is no longer science fiction.
This is the first non-invasive, real-time window into the brain's overnight waste clearance system, a process that weakens with age and is tied to memory disorders like Alzheimer's. If the wearable version works, monitoring and eventually boosting this cleaning cycle could become a standard part of longevity medicine.
Long story short: get your sleep. Its the best cleaning process for your brain.
The best marketing ideas come from marketers who live it. That’s what The Marketing Millennials delivers: real insights, fresh takes, and no fluff. Written by Daniel Murray, a marketer who knows what works, this newsletter cuts through the noise so you can stop guessing and start winning. Subscribe and level up your marketing game.
