In October, the moment of truth arrived for the AI tech titans as investors worldwide held their breath after Wall Street's close when Microsoft, Alphabet (Google), and Meta (Facebook) – collectively worth nearly 10 trillion dollars – began releasing their quarterly earnings reports in another attempt to beat forecasts.

Google (through its parent company Alphabet) beat forecasts by 26% ($2.87 per share compared to the $2.27 expected) with revenues of 100 billion dollars. Microsoft also beat forecasts by 14% ($3.72 per share compared to the $3.6 expected). Meta on the other hand had to pay 15 billions in a one-time payment, which resulted in a miss of 84% in the earnings.

Alphabet reported more than $100 Billion of revenue in a quarter for the first time ever. Google parent company Alphabet also reported strong third-quarter results, with revenue climbing 16% year-over-year. Google Search & Other grew 15%, while YouTube Ads increased 15% during the period. Google Cloud posted the strongest growth at 34%, though Google Network saw a 3% decline. The company's EBIT rose 9.5% with a margin of 31%, and earnings per share jumped 35%.

The head of Google's parent firm Alphabet, Sundar Pichai, has recently cautioned the BBC that every company would be impacted if the AI bubble were to burst. Speaking exclusively to BBC News, Pichai acknowledged that while AI investment growth is an "extraordinary moment," there is some "irrationality" in the current boom. Amid fears in Silicon Valley of soaring valuations, Pichai warned, "I think no company is going to be immune, including us."

His wide-ranging interview at Google's California headquarters, reported by the BBC, touched on energy needs, climate targets, UK investment, and AI's effect on jobs, coming as market scrutiny intensifies. Alphabet's shares have doubled in seven months to $3.5 trillion as market confidence in its ability to counter OpenAI grows. A specific focus remains on Alphabet's competition with Nvidia, run by Jensen Huang, which recently hit a $5 trillion valuation, even as analysts question the $1.4 trillion in deals surrounding OpenAI.

Pichai's remarks about "irrationality" echoed Alan Greenspan's 1996 "irrational exuberance" warning during the dotcom boom. Pichai told the BBC the industry can "overshoot" in such cycles. "We can look back at the internet right now. There was clearly a lot of excess investment, but none of us would question whether the internet was profound," he said. "I expect AI to be the same. So I think it's both rational and there are elements of irrationality through a moment like this." His comments follow a similar warning from JP Morgan's Jamie Dimon, who told the BBC some AI investments would "probably be lost." Pichai argued Google's "full stack" model provides a better position to handle turbulence.