Normal view
The GPU multitenancy mess
We’re seeing an interesting infrastructure tug of war today where GPU clouds are being pulled in two directions. For the economics of AI to work, the enterprise market needs to carve expensive hardware into smaller, shareable units and hand it to customers on demand, similar to how CPUs are doled in public cloud infrastructure. But the more the providers push GPUs to behave like elastic cloud infrastructure, the more they run into the reality that this GPU hardware was never built for safe multitenant use, fast fault recovery, or clean isolation between workloads. That tension is becoming one of the defining operational problems of the AI infrastructure market.
When a gamer launches Steam or the Epic Games Store on their laptop, they don’t have to worry about which GPU is being scheduled, how memory is going to be divided, or really any of the security boundaries or hardware assignment issues on their PC. For consumer PCs, these issues are not just hidden from view, they are irrelevant.
But for today’s IT teams managing GPU-driven AI workloads across distributed systems, those types of allocations and partitions need to be managed manually and carefully. This includes deciding which GPU to assign to each workload, how to divide memory, how to isolate tasks, and how to maximize utilization of this very expensive hardware. That’s why you heard so much about “Day 2” AI infrastructure themes around Nvidia’s GTC event this year.
The legacy hardware bottleneck
GPUs were originally developed to speed up graphic rendering and to perform local compute via shaders in service of graphical rendering. Their design assumes a trusted computing environment in which a single application controls the device. When a user runs an application on a GPU, it accelerates that particular workload.
But while GPUs are optimized for throughput, and therefore have thousands of simple cores designed to execute the same instruction over large datasets, this design paradigm creates several major technical limitations regarding context switching and memory isolation. GPUs were designed to produce pixels, not to run sensitive AI applications from multiple tenants using the same hardware.
As a result, GPU infrastructure today behaves less like elastic cloud infrastructure and more like carefully managed hardware appliances.
The partitioning paradox
Today’s AI infrastructure requires GPUs to behave like shared, elastic cloud resources. As inference workloads begin to outstrip large-scale training runs, the ability to slice and share expensive hardware among multiple tenants in real time while maintaining acceptable fault tolerance is no longer optional.
Hardware vendors have introduced new approaches to dividing GPUs into multiple isolated compute slices. Other frameworks approach partitioning through schedulers and container runtimes. But resource partitioning is just one slice of the overall GPU operations pie.
There is currently no widely adopted, cross-vendor operating model for achieving this safely at scale. Most providers are faced with either dedicating a single customer to a physical machine (thus wasting available capacity), or accepting the multi-tenancy security risks currently without a known solution. The current engineering challenge has moved from beneath the model layer and into the infrastructure layer. Success now relies on the ability to quickly launch new workloads and to rapidly contain hardware faults so that a single GPU failure does not bring down all workloads running on the server.
Untrusted code and tenants
The vast majority of current GPU programming models rely on the idea that the driver has complete control over memory protection and that no user will act maliciously. Unfortunately, that assumption completely falls apart in a cloud environment where one VM or container can leave behind data remnants in memory that another VM or container may access. Especially considering that how GPUs execute code is often completely opaque.
A single faulty workload or a single faulty driver failure in a shared GPU environment can also take down every workload (job) that was being run on the same server, increasing the amount of damage caused by an operational failure.
Currently, there are immature options for runtime inspection or behavioral auditing, limiting both visibility and control for security teams. GPU drivers provide a large attack surface and generally limited telemetry from the hardware. In these shared environments, embeddings, weights, prompts, and tokens are now all sensitive data points, creating significant blind spots for those attempting to protect intellectual property.
The high cost of cold starts
The real constraint in many GPU clouds is not model performance but operational efficiency. Right now GPU operations looks like 30 minute tenant spin-up times, 70% idle rates, and engineers continuously debugging infrastructure stacks. Today’s GPU clouds are stalled not due to inferior models, but because the infrastructure layer underpinning these clouds was never designed to support such a high degree of scale.
A 30 minute cold start is a fundamental limitation on the modern AI business model. Those GPU clouds that can spin up workloads in seconds will ultimately win against those that do not. Multitenancy is the only viable means of producing sufficient unit economics to make this very expensive hardware viable for the long term.
Bridging the orchestration gap
Platform teams are beginning to recognize that GPUs require a specialized operating layer between the hardware and workloads. Operators need a unified operating model that supports multiple hardware vendors and GPU models. Cloud providers need a method to safely slice and share servers among tenants, and to prevent cascading failures, while rapidly launching new workloads.
Enterprises are increasingly seeking to run sensitive AI applications with stronger isolation guarantees, and thus are turning to newer categories of software designed specifically to manage the “dirty work” of hardware orchestration.
The race to make GPUs more operational
Prior to Kubernetes standardizing container orchestration, the industry was constantly debating the efficiency of container scheduling and bin packing across clusters. Those operational concerns were eventually automated and incorporated into infrastructure layers that made the complexities invisible to the end user.
A similar evolution is occurring around GPUs today. While platform teams continue to argue over placement strategies and memory tuning, these decisions will likely be automated within five to 10 years. As AI infrastructure evolves, the most valuable layer may not be the GPUs themselves but the operating layers that make them secure, elastic, and efficiently sharable. So the winners in the AI race won’t necessarily be just those with the most silicon, but those who have the best operating models for making that silicon secure and elastic.
—
New Tech Forum provides a venue for technology leaders—including vendors and other outside contributors—to explore and discuss emerging enterprise technology in unprecedented depth and breadth. The selection is subjective, based on our pick of the technologies we believe to be important and of greatest interest to InfoWorld readers. InfoWorld does not accept marketing collateral for publication and reserves the right to edit all contributed content. Send all inquiries to doug_dineley@foundryco.com.

Beware of the genAI token trap
Enterprises are moving aggressively into generative AI. On the surface, that seems like the right call. The technology is powerful, accessible, and increasingly embedded in how businesses build applications, automate processes, and support decision-making. A development team can connect an application to a large language model in days. A product team can add AI features in weeks. Business leaders see quick wins, faster innovation, and a path to modernizing nearly every part of the company.
These are the upsides everyone is talking about. The part we don’t discuss enough is the economic trap forming underneath all this convenience.
Most enterprises think of tokens as a technical billing detail. They are not. Tokens are the unit of economic dependency in generative AI. Every prompt, response, summarization, retrieval step, workflow action, and agent decision is measured and monetized through tokens. Tokens are not just part of the plumbing. They are the tollbooth between your enterprise and a provider’s intelligence platform. The more AI becomes central to your operations, the more power that tollbooth holds over your future costs.
Tokens are not just a pricing unit
A token is usually described as a chunk of text processed by a model. That is accurate enough for developers, but it misses the bigger issue for CIOs, architects, and corporate boards. In the enterprise, tokens are the mechanism by which AI capabilities are rented. They are the meter attached to the intelligence itself.
That distinction matters because token usage grows faster than most companies anticipate. A simple user prompt rarely remains simple in production systems. It can trigger retrieval from internal knowledge stores, multiple model calls, tool use, post-processing, policy checks, and agent loops. What appears to be a single transaction to the user may involve several layers of token consumption behind the scenes. As a result, enterprises often underestimate the true operating cost of AI-enabled systems, especially as those systems mature and spread across departments.
Today, those costs still feel manageable. In many cases, they feel surprisingly low. That is exactly why the trap is so dangerous.
The market is in a subsidy phase
Current token pricing is giving enterprises a false sense of comfort. Many remote LLM providers are aggressively competing for market share. They want developers building on their APIs. They want enterprise applications tightly coupled to their platforms. They want AI agents, copilots, workflows, and customer experiences to depend on their models. To make that happen, pricing remains highly attractive relative to the value delivered.
That does not mean the economics of generative AI are stable. It means the market is still being shaped by investor capital, strategic pricing, and growth expectations. Providers are racing to establish position, and enterprises are benefiting from that race. But no market stays in that phase forever. At some point, investors will expect durable profitability. At some point, weaker providers will disappear, consolidate, or retreat. At some point, the survivors will have more leverage and much less reason to price primarily for adoption.
That’s when the token trap closes.
Enterprises that build deep dependence on remote models during the subsidy phase may find that what seemed inexpensive at pilot scale becomes punishing at enterprise scale. The application that costs $1,000 per month today may cost 10 or 20 times that amount a few years from now, not only because usage has increased, but also because the market has repriced the dependency.
Easy to adopt, expensive to exit
Cloud computing followed a similar path, with many enterprises mistaking short-term convenience for long-term economics. In the early years, the case was compelling and largely accurate. Move faster, reduce friction, avoid capital spending, and scale with ease. Those benefits were real. Many organizations made architectural decisions that prioritized speed over leverage. They became dependent on managed services, provider-specific tools, and operating models that were easy to adopt but expensive to unwind.
Years later, many enterprises discovered that their cloud bills were much higher than expected and their exit options much narrower than advertised. That was not because the cloud failed. Architectural dependency eventually became financial dependency.
Generative AI is repeating that pattern, only faster. The integration barrier is lower, the pressure to adopt is higher, and the pace of enterprise experimentation is far greater. As a result, companies are wiring remote LLMs into applications, workflows, and agentic systems with very little thought about how these costs will behave in the next five to 10 years.
Agentic AI makes things worse
The more enterprises move from simple prompt-response systems to agentic architectures, the more dangerous the token trap becomes. Agents are not single-call systems. They plan, deliberate, retrieve information, invoke tools, evaluate results, retry steps, and often coordinate with other agents. Each of those actions consumes tokens. Costs no longer rise in a neat linear fashion. They compound.
This matters because agentic AI is increasingly being presented as the future of enterprise automation. It’s true in many cases. But if an enterprise builds agentic systems primarily on remotely hosted intelligence, it is also building future business processes on top of someone else’s pricing model. That is a major strategic risk. The more successful those systems become, the harder they are to replace. The harder they are to replace, the more pricing power shifts to the provider.
This is how businesses end up operationally dependent on a cost structure they do not control.
The appeal of AI sovereignty
The answer is not to reject public models or pretend that external providers play no role. They clearly do. There will always be cases where renting frontier AI capabilities makes sense. But enterprises need to stop assuming that renting is the default for every workload.
AI sovereignty is the alternative that deserves much more attention. That means building, tuning, deploying, and governing models inside the enterprise for use cases where long-term control matters more than access to the absolute frontier. Enterprises need to recognize that most business applications do not need a world-class general-purpose model. They need a model that is good enough for a specific purpose, aligned to the enterprise’s data, governed by the enterprise’s rules, and operated at a predictable cost.
It’s a very different way of thinking.
A self-hosted or enterprise-controlled model may not match the rich feature set of the largest public offerings. It may lack the same breadth, polish, or marketing appeal. But for many internal business tasks, those factors do not matter.
Here’s the most critical question to guide your architectural direction: Can a sovereign AI model solve the problem reliably, securely, and economically over time? If the answer is yes, owning that capability may be far more strategic than forever renting something with more power than you need. In effect, the enterprise becomes its own provider for the workloads that matter most.
Prepare for changing markets
Too many companies still treat generative AI architecture as a tactical IT issue. It is not. These decisions directly affect cost structure, operating flexibility, data control, and long-term competitiveness. If AI becomes a force multiplier across the business, the economics of AI become strategic to the business itself.
The companies that get this right will not necessarily be the fastest adopters. They will understand the difference between experimentation and dependency. They will use external models when it makes sense, but they will also invest in sovereign capabilities where ownership matters. They will think like architects, not consumers.
Here’s the takeaway: Cheap tokens come with strings. They are a gateway to a dependency model that will typically look very different once providers stop pricing for growth and start pricing for leverage. Enterprises cannot keep mistaking today’s bargain for tomorrow’s reality. Boards and executive teams need to act now to get ahead of this issue. The key question is not whether generative AI creates value. It clearly does. The real question is whether the enterprise can still afford and control the value it creates once the market matures.
