Mr. Sundar Pichai, CEO of Google, said that no company will escape the impact if the investment boom in AI collapses.
In a recent interview with the press, Mr. Pichai said the current wave of AI investment is an "extraordinary moment" but admitted there are "irrational elements" in the market, raising concerns about "irrational euphoria" like during the dotcom bubble.
Asked how Google would cope if the bubble burst, Mr Pichai said the company could weather the storm, but added: "I don't think any company will be immune, including us."
Alphabet shares have risen about 46% this year as investors bet on the company’s ability to compete with ChatGPT developer OpenAI. But analysts are increasingly questioning whether AI’s valuation is sustainable.
In the US, high valuations have begun to weigh on the broader market, while UK policymakers have also warned of bubble risks.
In September, Alphabet pledged to spend £5 billion over two years on AI infrastructure and research in the UK, including a new data centre and investment in its London-based DeepMind lab.
Mr Pichai also said Google would start training AI models in the UK, a move that UK Prime Minister Keir Starmer hopes will boost the country's goal of becoming the world's third AI power, after the US and China.
However, he warned of AI's "massive" energy requirements and said Alphabet's net-zero emissions targets would be delayed as the company expands its computing capacity.