While focus is on massive supercomputers for training next-gen models, the real supply chain constraint will be 'inference' chips—the GPUs needed to run models for billions of users. As adoption goes mainstream, demand for everyday AI use will far outstrip the supply of available hardware.

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Specialized AI cloud providers like CoreWeave face a unique business reality where customer demand is robust and assured for the near future. Their primary business challenge and gating factor is not sales or marketing, but their ability to secure the physical supply of high-demand GPUs and other AI chips to service that demand.

The AI industry's growth constraint is a swinging pendulum. While power and data center space are the current bottlenecks (2024-25), the energy supply chain is diverse. By 2027, the bottleneck will revert to semiconductor manufacturing, as leading-edge fab capacity (e.g., TSMC, HBM memory) is highly concentrated and takes years to expand.

While energy supply is a concern, the primary constraint for the AI buildout may be semiconductor fabrication. TSMC, the leading manufacturer, is hesitant to build new fabs to meet the massive demand from hyperscalers, creating a significant bottleneck that could slow down the entire industry.

The focus in AI has evolved from rapid software capability gains to the physical constraints of its adoption. The demand for compute power is expected to significantly outstrip supply, making infrastructure—not algorithms—the defining bottleneck for future growth.

A critical, under-discussed constraint on Chinese AI progress is the compute bottleneck caused by inference. Their massive user base consumes available GPU capacity serving requests, leaving little compute for the R&D and training needed to innovate and improve their models.

The critical constraint on AI and future computing is not energy consumption but access to leading-edge semiconductor fabrication capacity. With data centers already consuming over 50% of advanced fab output, consumer hardware like gaming PCs will be priced out, accelerating a fundamental shift where personal devices become mere terminals for cloud-based workloads.

The 2024-2026 AI bottleneck is power and data centers, but the energy industry is adapting with diverse solutions. By 2027, the constraint will revert to semiconductor manufacturing, as leading-edge fab capacity is highly concentrated and takes years to expand.

While training has been the focus, user experience and revenue happen at inference. OpenAI's massive deal with chip startup Cerebrus is for faster inference, showing that response time is a critical competitive vector that determines if AI becomes utility infrastructure or remains a novelty.

The intense demand for memory chips for AI is causing a shortage so severe that NVIDIA is delaying a new gaming GPU for the first time in 30 years. This demonstrates a major inflection point where the AI industry's hardware needs are creating significant, tangible ripple effects on adjacent, multi-billion dollar consumer markets.

While energy is a concern, the highly consolidated semiconductor supply chain, with TSMC controlling 90% of advanced nodes and relying on a single EUV machine supplier (ASML), creates a more immediate and inelastic bottleneck for AI hardware expansion than energy production.

The Next AI Bottleneck Is Chip Scarcity for Inference, Not for Training | RiffOn