Cerebras Stock Drops 10% After Its 68% IPO Pop, Google I/O Opens Tomorrow

Two stories today as the week ends: the Cerebras IPO hangover, which tells you something important about AI hardware investment cycles — and what to expect tomorrow from Google I/O, the biggest AI product event of 2026.

Cerebras Falls 10% Friday After 68% Debut Thursday

Cerebras Systems (CBRS) closed Thursday at $311.07 — a 68% gain on its $185 IPO price, valuing the AI chipmaker at $95 billion and making it the largest US tech IPO since Uber's 2019 debut. Then Friday happened: the stock fell 10%, giving back a chunk of the first-day excitement.

The basics: Cerebras raised $5.55 billion selling 30 million shares, priced above its already-raised range of $150-$160. Shares opened at $350 Thursday morning — nearly double the IPO price — hit $385, then settled at $311. CEO Andrew Feldman and CTO Sean Lie are now billionaires at $3.2B and $1.7B respectively. Revenue hit $510 million in 2025, up 76% year-over-year, with net income of $88 million — though much of that reflects a one-time accounting gain. The business still runs at an operating loss.

The core product: Cerebras builds Wafer Scale Engine chips — literally the largest chips physically possible on a silicon wafer. The WSE-3 chip has 4 trillion transistors and 900,000 AI cores on a single wafer. Cerebras claims these chips run AI inference faster than Nvidia's GPUs at lower cost. OpenAI signed a $20 billion multi-year deal for 750 megawatts of Cerebras inference capacity, expandable to 2 gigawatts by 2030. That one customer explains most of the company's valuation.

The 10% Friday drop is normal IPO mechanics — day-traders who bought at the open at $350 taking profits. The real test is whether Cerebras can diversify beyond OpenAI and execute on the hardware roadmap. If OpenAI were to switch providers or reduce usage, Cerebras loses its anchor customer.

My take: Cerebras is actually interesting because it's the first credible alternative to Nvidia's GPU dominance for AI inference specifically. Not training — Nvidia still leads there — but inference, where models respond to users in real time. For AI tool pricing, this matters. Right now every major AI company runs on Nvidia hardware, which means Nvidia has significant pricing leverage. If Cerebras (or AMD, or Google TPUs) becomes a real alternative at scale, that pricing leverage weakens. Long-term, more chip competition means cheaper inference, which means the $20/mo (≈₹1,860/mo) subscriptions for Claude, ChatGPT, and Gemini become more sustainable — and possibly cheaper. Short term: the 10% drop after the pop is healthy. The AI IPO wave that Cerebras is supposed to trigger — SpaceX/xAI, Anthropic, OpenAI — will follow if demand holds.

Google I/O 2026 Opens Tomorrow — What to Actually Expect

Google I/O 2026 keynote starts at 10 AM PT Monday, May 19. It's the biggest AI product event of the year, and after two weeks of leaks, here's what I'm watching closely:

Almost certain to happen:

• A major Gemini model update — whether that's Gemini 4.0 or a rebranded version of what's been leaking as "Gemini Omni" (the unified text-image-video model)
• Veo 4 video generation update — last year's Veo 3 was good; Veo 4 should be competitive with Sora and Runway
• Android 17 features — already in beta, includes tighter Gemini integration sitewide
• Android XR glasses details — camera and mic hardware, hands-free Gemini, no display yet

Strong leaks pointing to:

• Gemini Omni — unified model handling text, images, and video in one pipeline
• Aluminium OS — Chrome OS replacement, desktop Android with virtual desktops
• Googlebooks — Android-powered laptops from Acer, ASUS, and Lenovo

What I'm watching for that nobody else is: The pricing. If Gemini Omni can do text + images + video in one $20/mo subscription, it changes the math for users currently paying separately for image generators and video tools. I'll update the Gemini review, best AI video generators, and best AI image generators rankings immediately after the keynote with the actual announced pricing and capability details.

Quick Hits

The AI IPO wave is coming. Cerebras' success is being read as a green light for other AI companies to go public. SpaceX/xAI, OpenAI, and Anthropic are all potential 2026 IPOs. Wall Street is clearly hungry for AI equity — only two tech companies in history have closed their IPO day with a market cap over $100 billion (Meta and Alibaba). Cerebras at $95B almost made that list.

Anthropic published a 2028 scenario paper. Looking two years out, Anthropic argues 2026 is likely the "breakaway" year for American AI leadership — when the US computational and research advantages either compound into dominance or get eroded by Chinese competition. The paper frames the next 24 months as the critical window. It reinforces why the Trump-Xi chip negotiations matter so much.

Coverage note: I'll publish a full Google I/O breakdown Monday evening covering every announcement that affects which AI tools you should be using and whether any pricing changes.

Published May 17, 2026. Prices at ≈₹93/USD.