AI Bubble Warning: Microsoft, Uber Face Soaring AI Costs

Unexpected AI-related costs are hitting tech companies, leading to budget overruns for 2026. Microsoft and Uber are grappling with these issues. Here's the thing: Microsoft is ending most internal access to Anthropic's Claude Code by June 30, 2026, due to unsustainable billing. This decision comes just six months after its pilot launch. Engineers are now advised to use GitHub Copilot CLI instead. Similarly, Uber is scaling back on AI technologies because its 2026 budget of $3.4 billion was exhausted by April. Uber's Chief Technology Officer revealed the crisis after 5,000 engineers used Claude code, with monthly usage soaring and API costs reaching up to $2,000 per engineer. What's interesting is that Nvidia's Vice President of Applied Deep Learning also noted that AI compute costs now exceed employee costs for his team. This cost explosion is largely due to token-based scaling as many developers use AI for coding. The bottom line: These budget issues are reigniting the debate about an AI bubble, suggesting a reality check for the industry.