The AI chip king is feeling the heat. Nvidia shares dropped 2.6% Tuesday as the company took the unusual step of publicly defending its dominance against mounting pressure from Google's custom chips and criticism from short-seller Michael Burry. The chipmaker's rare public response signals growing anxiety about challengers to its $3 trillion AI empire.
The crown is getting heavy for Nvidia. After months of unquestioned dominance in AI computing, the chip giant is now fighting battles on multiple fronts - and doing something it rarely does: defending itself publicly.
Shares slumped 2.6% Tuesday as investors digested a perfect storm of competitive threats. The latest blow came from Meta, which according to The Information is seriously considering Google's custom TPU chips for its data centers. That's a potential defection from one of Nvidia's biggest customers.
The threat became real last week when Google unveiled its Gemini 3 AI model - powered entirely by its own silicon. Unlike previous Google models that relied heavily on Nvidia's H100 chips, Gemini 3 runs on Google's custom tensor processing units, proving that viable alternatives exist.
Nvidia broke its usual silence Tuesday, posting on X that its GPUs are "a generation ahead of the industry" compared to ASIC chips like Google's TPUs. The company emphasized its chips' versatility across different AI workloads, a not-so-subtle dig at specialized alternatives.
But the pressure isn't just coming from competitors. Michael Burry, the investor famous for predicting the 2008 financial crisis, has been arguing that tech giants are artificially inflating profits by overestimating how long Nvidia's chips will last. Burry claims companies are using longer depreciation schedules than warranted, making their AI investments look more profitable.
Nvidia quietly pushed back against Burry's allegations with a private memo to Wall Street analysts - another unusual move for a company that typically lets its financial results do the talking. The memo disputed the accounting claims, but its very existence suggests management is taking the criticism seriously.
The timing couldn't be worse. Nvidia's stock has faced valuation concerns all month, with some investors questioning whether its nearly $4 trillion market cap can be justified. The company trades at over 60 times earnings despite slowing growth in some segments.
What's particularly concerning for Nvidia is that the competitive threats are coming from its own customers. Google, Meta, Amazon, and Microsoft have all invested billions in custom chip designs, initially to supplement Nvidia's offerings but increasingly as potential replacements.
Google's TPUs have been around for years but were mostly used internally. The company's push to make them available to other cloud customers - including potential Nvidia defectors like Meta - represents a new level of competitive threat. These chips are optimized specifically for AI inference, often the most cost-sensitive part of running AI models at scale.
The semiconductor industry has seen this movie before. Intel dominated server chips for decades until AMD and custom silicon providers chipped away at its market share. The question isn't whether Nvidia will face competition, but how quickly that competition can scale and at what cost.
For now, Nvidia maintains significant advantages. Its CUDA software ecosystem has locked in developers for over a decade, and switching costs remain high. The company's latest H200 and upcoming Blackwell chips still offer superior performance for training large AI models - the most demanding and profitable segment.
But the fact that Nvidia felt compelled to speak up suggests management recognizes the shifting landscape. In the past, the company could afford to stay above the fray, confident that customers had no viable alternatives. Those days appear to be ending.
Nvidia's public defense marks a turning point for the AI chip leader. While the company still dominates AI training workloads, the emergence of credible alternatives from Google and growing interest from major customers like Meta suggests the competitive landscape is finally shifting. How Nvidia responds to this pressure - whether through innovation, pricing, or strategic partnerships - will determine if it can maintain its crown or become just another player in an increasingly crowded field.
