OpenAI files for IPO, Apple's Siri gets a real overhaul, and an underwater datacenter goes live

Two of the biggest AI companies on the planet both filed for IPOs within the span of about a week. The race to go public - and the valuation game that comes with it - just got very real. Meanwhile, Apple finally showed up to the AI party with something that actually looks like it was worth the wait. A lot happened in the last 24 hours. Let's get into it.

Apple announced a new Siri AI partnership at WWDC 2026 with a major AI lab. Which company did Apple partner with to power some of Siri's new AI capabilities?

The answer is hiding near the bottom of today's newsletter... keep scrolling. 👇

OpenAI officially entered the IPO race on Monday, announcing it has confidentially submitted a Form S-1 with the SEC. The expected valuation? More than $850 billion - which would make it one of the most highly valued listings in US market history.

This comes just over a week after rival Anthropic filed its own S-1 on June 1st. The confidential filing means key financial details stay private for now - but the direction of travel is clear. Both of the dominant AI labs are heading to public markets, and the pressure on each to demonstrate real revenue is about to intensify significantly.

We covered Anthropic's IPO filing and its path to $47B revenue in last Saturday's edition - and now with OpenAI following suit, the AI industry's biggest financial moment is approaching fast. If you want to track the AI investment landscape, our tech markets tag has the full picture.

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After two years of promising a smarter Siri that never quite materialized, Apple used WWDC 2026 to unveil what it's calling "Siri AI" - described as an entirely new version of the assistant. It's more conversational, more context-aware, and - crucially - it now has a dedicated standalone app for the first time.

One of the bigger surprises: Apple announced a Google Gemini partnership to power parts of Siri's new capabilities. Apple is also waiving cloud API costs for developers with fewer than 2 million first-time App Store downloads - a direct attempt to pull smaller developers into its AI ecosystem before costs become a barrier.

The update also includes AI-powered Safari extensions (users can literally describe the extension they want and Safari will build it), smarter Photos editing with a new spatial Reframe feature, and an AI-upgraded Shortcuts app where you describe a workflow in plain text and it builds it for you. The $250M false advertising settlement from last year clearly changed how Apple demos its AI features - everything shown was hands-on and real.

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China just did something genuinely novel. The Shanghai Lingang undersea datacenter demonstration project launched in May and is now fully operational off the coast of Shanghai - making it the world's first wind-powered underwater datacenter. It uses less power and less water than a comparable land-based facility, addressing two of the biggest criticisms facing the AI industry's infrastructure boom.

This is notable timing. We've been tracking the growing tension between AI's appetite for compute and the environmental cost of feeding it - from Seattle's proposed datacenter moratorium to Guardian analysis showing two-thirds of planned US datacenters are being built on drought-stricken land. China's underwater approach sidesteps the water cooling problem entirely while tapping offshore wind energy - a combination that land-locked facilities can't replicate. Whether this scales is a separate question, but as a proof of concept it's hard to ignore. Follow our environmental concerns tag for more on AI's infrastructure footprint.

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Here's a legal problem that nobody in the AI-in-healthcare space has fully solved: who gets sued when an AI makes the wrong call? In the UK, the Medical Protection Society is warning ministers that under current law, doctors and the NHS can be held liable for patient harm caused by AI diagnostic tools - even when the error originated with the technology itself.

The MPS is calling for an overhaul of medical negligence law to protect clinicians from being blamed for AI errors they had limited ability to detect or override. This is exactly the kind of legal-technology gap that tends to emerge when adoption outpaces regulation. Hospitals are deploying AI diagnostic tools at speed, but the legal framework treating those tools as a doctor's direct responsibility was written long before any of this existed. The report is a clear signal that the UK government needs to move faster on AI-specific medical liability rules.

If you're building anything in the healthcare AI space, liability frameworks like this are going to matter enormously in the next 12-18 months - especially as AI-assisted diagnosis becomes standard practice.

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On the lighter side: Amazon is expanding its print-on-demand features to include AI-generated designs via Alexa for Shopping. You type a prompt, the AI generates an image, and it gets printed on T-shirts, hoodies, water bottles, and tumblers. You can also share a link to your design so others can buy the same item.

It's a relatively low-stakes application of generative AI, but it's a smart one for Amazon - it turns creative output directly into commerce with zero inventory risk. If you're thinking about building a lightweight product or storefront around AI-generated content, tools like 60sec.site let you spin up an AI-powered website in under a minute to showcase and sell your work - no developer needed. The AI-generated merch space is going to get crowded fast.

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The answer is C - Google (Gemini)! Apple announced a partnership with Google to bring Gemini capabilities into the new Siri AI, which is a fascinating development given that Google and Apple are direct competitors in the smartphone space. It's a reminder that in AI, yesterday's rival is today's infrastructure partner.

Apple has been promising a smarter Siri for two years. Now that it's actually here - with a Gemini partnership and a dedicated app - are you going to use it? Or have you already moved on to ChatGPT, Claude, or something else as your daily AI assistant? Hit reply and tell me - I read every single response and would genuinely love to know where people have landed on this.

That's it for today - a big one across the board. For more AI coverage every day, visit dailyinference.com and browse the full archive. See you tomorrow!