Microsoft and Alphabet earnings: same AI boom, two very different verdicts

Microsoft is currently converting AI demand into revenue and cash more convincingly than Alphabet, even though both benefit from strong AI spending.

• On 28 October 2026, Azure sales grew 48% as companies continued paying for AI computing, while Microsoft generated USD 18.6 billion in free cash flow.
• Microsoft’s investment spending was below forecasts partly because some computing capacity arrived late, but its data-centre investments are already supporting sales and the market rewarded that progress.
• Alphabet’s Google Cloud revenue more than doubled, yet search advertising growth was below analysts’ expectations and its AI Mode currently generates less advertising revenue per search than traditional results.
• Alphabet’s heavy investment produced negative free cash flow of USD 9.1 billion for a second consecutive quarter, increasing the pressure to show that higher AI usage can restore cash generation.
• Microsoft’s relationship with OpenAI and Google Cloud’s work with Anthropic let both companies benefit from AI demand without winning every chatbot competition, while also supporting chipmakers, data-centre builders and electricity suppliers.

Takeaway: Investors should focus less on AI capacity and more on whether customers keep paying, costs remain manageable and cash generation recovers; Microsoft has the clearer near-term link between AI demand and cash, while Alphabet must adapt its advertising model to AI search.