Alphabet, Google's parent, is having a rough stretch in the market, and the cause is anxiety about a single question: is Google falling behind in artificial intelligence? Shares slid again this week after fresh reporting that Gemini 3.5 Pro, the company's most powerful AI model, has been pushed from a planned June release into July, per CNBC. The move was modest on the day but adds to a slow decline that has run over several sessions.
What Gemini is, and why a delay matters
Gemini is Google's flagship family of AI "models," the large systems, trained on vast amounts of data, that power chatbots and AI features and compete with OpenAI's GPT and Anthropic's Claude. Gemini 3.5 Pro is meant to be the top of that line. Chief executive Sundar Pichai had signaled it would arrive around mid-year; instead it has slipped, with reports attributing the delay to the model not yet meeting Google's own quality bar on tasks such as coding and multi-step reasoning.
A delayed product does not by itself dent Google's profits. But in the current environment, investors treat the timing of frontier-model releases as a scoreboard for who is winning. A miss reads as a sign that Google's engineering pace has slowed relative to rivals shipping capable models on a steady cadence, and that perception is what moves the stock.
A slow slide, not a single crash
It is worth being precise about the market reaction. Alphabet's most dramatic drop came in late June, when the delay first surfaced alongside reports of senior AI researchers leaving; the stock fell around 5% that day, erasing on the order of $225 billion in market value. This week's decline was far smaller, with the shares sliding roughly 1% as the delay was reaffirmed, according to Investing.com. The pattern is a grind lower on accumulating worries, not a one-day shock.
Those worries include reports of departures from Google's AI teams to rivals such as OpenAI and Anthropic. Boursel notes that the specific names and destinations come from press reports rather than company confirmation, but the theme, that Google is spending heavily yet struggling to hold onto the researchers who build frontier models, is what unsettles investors.
The other side of the ledger
The gloom sits awkwardly against Google's actual business, which remains strong. The company's cloud unit has been growing fast, with revenue up about 63% year over year and a large contracted backlog of future work, per figures cited by Investing.com, and its search-advertising engine still throws off enormous profits. That is the tension in the stock: a highly profitable company whose share price is increasingly driven by a narrative about whether it can keep up in AI.
What to watch
The near-term test is simple: does Gemini 3.5 Pro actually ship, and is it competitive when it does? A strong launch could steady the shares; another slip, or a model that underwhelms against OpenAI's and Anthropic's latest, would likely deepen the doubts. Google also faces separate regulatory pressure in Europe over Android and search. For now, investors are pricing a company whose fundamentals are solid but whose AI reputation is under a cloud. Boursel does not forecast the share price.
