27 January 2026

How does AI Changes the Economics of Software Development?

How AI Changes the Economics of Software Development

In 2019, AI researcher Richard Sutton published an essay called "The Bitter Lesson" that has become one of the most cited pieces in the field. His thesis: AI methods that most directly leverage computation win over clever algorithms. Every time. Martin Casado at Andreessen Horowitz extended this to business economics, arguing that AI systems now turn capital directly into solutions. After working on 200+ software projects, we're watching this reshape not just what we build, but the entire economic model of how software gets built and who can afford to build it.

Traditional Software Development Costs
New Powers of Capital Today
Where Development Costs Concentrate Today
Restructuring Engineering Economics
The New Economic Bottleneck
New Fixed vs. Variable Cost Structures
Restructuring Organizational Cost Allocation
Rethinking Build vs. Buy Economics
The Economic Advantages That Matter Today
Allocating Capital in the New Model
Economic Lessons for the Future

What Was the Traditional Cost Structure of Software Development?

For most of software's history, the economics were brutally simple: building software was expensive, and you couldn't just throw money at the problem to make it faster.

Fred Brooks articulated this in "The Mythical Man-Month" in 1975: adding engineers to a late software project makes it later. The overhead of coordination, the complexity of integrating work across contributors, the irreducible dependencies meant that software development had a speed limit that capital couldn't overcome.

How Did These Economics Shape Investment and Strategy?

This constraint shaped everything. Venture capitalists learned that over-funding early-stage software startups was often counterproductive. Companies optimized for talent density and engineering culture because those were the levers that actually moved outcomes. The industry's entire cost structure was built around coordinating expensive specialists over extended periods.

The economics also limited what problems were worth tackling. If building software required coordinating large teams of expensive specialists for months or years, then only projects with substantial expected returns justified the investment. Many potentially valuable applications were never built because the development cost exceeded the plausible return.

When we worked with Premier Construction Software, their previous platform had taken years and substantial capital to build using traditional economics. The coordination overhead, the integration complexity, the time-to-market all followed the old model's cost structure.

What Can Capital Buy Now That It Couldn't Before?

AI is removing the coordination constraint. Capital can now flow directly into solutions in ways that fundamentally alter the economics.

How Does AI Change the Cost of Previously Impossible Problems?

Capital can now buy solutions to problems that were previously unsolvable at any price. Before modern AI, certain tasks simply couldn't be automated regardless of budget. Understanding natural language, generating coherent text, interpreting images, synthesizing realistic speech: these were beyond reach.

Today, these problems are solvable by purchasing sufficient compute and data. The solution isn't elegant or efficient. But it works, and it works better the more resources you apply. This is the bitter lesson in economic terms: brute force compute beats clever engineering.

What Does This Mean for Development Speed Economics?

Capital can also buy speed in ways that were previously impossible. Traditional software development had a clock speed determined by human coordination limits. AI development has a clock speed determined by compute capacity. With sufficient resources, you can compress years of iteration into months.

When Opus Platform approached us, their CEO noted we accomplished in three months what they'd struggled with for years. This wasn't just better process. It was fundamentally different economics. The time-to-value equation had shifted dramatically.

Capital can further buy breadth of capability. A single AI model trained on diverse data can handle a remarkable range of tasks. Where traditional software required building specific solutions for specific problems at separate costs, AI systems exhibit generalization that changes the cost structure entirely.

Where Do Development Costs Actually Concentrate Now?

But here's the crucial economic shift most founders miss: while implementation costs are dropping, other costs are becoming more critical.

Why Is Planning Investment More Valuable Than Ever?

In the old model, implementation risk represented the largest cost exposure. Would engineers build what was specified? Would technical approaches work at scale? Would unexpected complexity derail budgets? These uncertainties required expensive expertise and extended timelines.

AI tools are reducing implementation costs dramatically. Code generation is more reliable. Testing can be automated more thoroughly. The mechanical work of translating specifications into functioning software is becoming cheaper and faster.

But this doesn't reduce total project cost risk. It shifts where the risk lives: into strategy, product definition, and planning. If you implement the wrong thing efficiently, you've wasted resources faster. That's not cost savings.

When we transformed C&R Software's 40 years of legacy systems, the economic equation was clear: weeks invested in UX research and strategic planning saved months of implementation waste. The ROI on planning had inverted from the old economics.

How Does Faster Implementation Change Cost Trade-offs?

Consider two approaches. The first invests heavily upfront: extensive user research, detailed product definition, comprehensive wireframing, careful architectural decisions before implementation. The second moves quickly into implementation, relying on AI-assisted speed to iterate toward solutions.

In the old economics, the second approach had merit. Development was slow and expensive, so learning through real implementation, even wastefully, had value. The cost of planning seemed high relative to the cost of building.

In the new economics, this inverts. When you can implement quickly and cheaply, the cost of implementing wrong things isn't measured in development resources. It's measured in opportunity cost and market timing. Every iteration on the wrong approach is time and capital not spent on the right approach.

This is counterintuitive but critical for budgeting: faster building makes better planning more economically valuable, not less. The ROI on getting the plan right increases when execution costs drop.

How Are Engineering Economics Being Restructured?

The fastest-growing AI companies are hiring software engineers as fast as they can. This might seem to contradict the thesis that AI reduces implementation costs. But it reveals how engineering value is being reallocated economically.

What Engineering Work Commands Premium Value Now?

What engineers are being hired to do is changing, and so is their economic value distribution. Less time goes to routine implementation. More goes to harder problems: system architecture, integration, reliability at scale, security. The challenges that AI tools cannot yet address effectively.

When Electrosmart needed to automate their arbitrage model, the economic value wasn't in writing CRUD operations. It was in architectural decisions about data flows, edge case handling in pricing logic, building systems that could evolve with their business model. These decisions had 10x to 100x economic leverage over routine coding.

The value of an engineer who can write routine code is declining rapidly. The value of an engineer who can make sound architectural decisions, who can design systems that remain maintainable as they evolve, who can anticipate problems before they manifest, this value is increasing proportionally.

For founders evaluating development partners, the economic calculation is shifting. Cheap implementation was once meaningful. It's becoming table stakes. What commands premium pricing now is higher-order thinking: strategic product guidance, architectural expertise like our DevOps and infrastructure approach, ability to see around corners and avoid expensive mistakes.

This changes the build-versus-buy economics entirely. Hiring junior developers to write AI-generated code is cheap. But the hidden cost is architectural debt, maintainability problems, and systems that can't evolve. The true economic value has shifted upstream.

Where Is the New Economic Bottleneck?

Every system has a bottleneck, and capital spent anywhere else delivers diminishing returns. For decades, implementation was the bottleneck. Companies that could implement faster and more reliably had economic advantage.

Why Does Strategic Clarity Have Higher ROI Than Implementation Speed?

AI is moving the bottleneck, which fundamentally changes where capital should flow. Implementation is becoming less constrained. What remains constrained is the ability to determine what to implement: strategic clarity, user understanding, product vision.

Companies continuing to optimize their budgets for implementation speed are optimizing for a loosening constraint. They'll find themselves able to build faster than ever while still struggling to build profitably, because building fast doesn't help economically if you're building the wrong thing.

When we developed Cortex for construction drawing management, implementation speed was abundant. Understanding construction workflow chaos, anticipating real-world collaboration patterns, designing for messiness rather than ideal processes, that's where the economic value concentrated. Those weeks of discovery had 50x ROI versus the same time spent on faster coding.

The companies achieving best capital efficiency are those reallocating budgets accordingly. They invest more in understanding users, markets, and competitive positioning. They invest more in planning and product definition through content strategy and UX design. They treat implementation as guided execution rather than primary value creation.

This isn't saying implementation doesn't matter economically. Poor execution destroys value. But the relative scarcity has shifted. Strategic clarity is the scarce resource. Implementation capability is abundant. Capital efficiency requires investing in the scarce resource.

What Are the New Fixed Versus Variable Cost Structures?

Traditional software economics had clear cost structures: high fixed costs (hiring engineers) and relatively low variable costs (once built, software scales cheaply). AI is restructuring this entirely.

How Do AI Development Costs Scale Differently?

AI development inverts some assumptions. Training costs can be substantial upfront, but inference costs drop as scale increases. The economic model shifts from "pay engineers continuously" to "pay for compute and data, then leverage it."

This changes project economics fundamentally. A traditional software project might cost $500,000 in engineering time spread over six months. An AI-assisted project might cost $200,000 in engineering time over three months plus $100,000 in compute and data. Same total budget, but completely different cost structure and risk profile.

The implications for founders: cash flow timing changes, risk profile changes, and most critically, the leverage points for cost optimization change. You can't negotiate compute costs the way you negotiate engineering rates, but you can potentially achieve better outcomes faster with the same total capital.

When Valley Insurance Associates needed their custom CRM, the economics didn't follow the old model of person-months times hourly rates. The economic equation involved upfront strategic investment, focused architectural work, and then leveraging capabilities that previously would have required custom development. CEO Gina Doyle's comment, "Best investment we've made," reflected ROI that traditional economics couldn't have delivered.

What Does This Mean for Project Budgeting?

Project budgeting requires different thinking. In the old model, you budgeted engineering hours against features. More features, more hours, more cost. Linear relationship.

In the new model, the relationship is non-linear. Some features that were expensive become cheap. Others that seem simple remain hard. The economic calculation requires different expertise to evaluate.

This means project estimates need different foundations. The old "points per sprint" model doesn't capture the economics accurately when some work leverages AI capabilities and other work requires deep human expertise. Smart founders are budgeting differently: more upfront for strategic clarity, less for routine implementation, more buffer for architectural decisions.

How Should Organizations Restructure Their Cost Allocation?

There's a deeper economic implication: what happens to organizational cost structures built around old economics?

What Coordination Costs Can Be Eliminated?

Software companies evolved cost structures optimized for coordinating large engineering efforts. Product managers to translate requirements. Engineering managers to coordinate teams. Elaborate processes to prevent coordination failures. All of these represent overhead costs.

If small teams can accomplish what large teams did, much coordination overhead becomes economically unjustifiable. But organizations don't restructure automatically. They carry forward cost structures optimized for yesterday's economics, bleeding margin.

We should expect organizational cost restructuring as companies grapple with this. Some will cling to structures that destroy economic efficiency. Others will restructure radically and discover that optimal cost allocation looks very different.

For startups, this is economic advantage. They can allocate capital optimized for current realities rather than carrying legacy cost structures. A startup today can operate with a small, senior team focused on strategic decisions, with economics that would have been impossible five years ago.

When Wine Unplugged transformed their customer intelligence, they didn't need the traditional agency team structure with its coordination overhead. They needed focused expertise in hospitality customer behavior and smart technical architecture. The cost efficiency was dramatically better than old economics would have allowed.

What Does This Mean for Build-Versus-Buy Economics?

One of the most fundamental economic calculations in software is whether to build custom solutions or buy existing tools. AI is reshaping this calculation entirely.

How Has the Break-Even Point Shifted?

In traditional economics, custom development required substantial investment that only paid off at significant scale. For most companies, buying was economically rational. The fixed costs of custom development were too high to justify unless volume was substantial.

AI is dropping custom development costs dramatically, which shifts the break-even point. Projects that economically required off-the-shelf solutions can now justify custom development. This changes competitive dynamics, vendor economics, and strategic options.

But there's a trap: cheaper custom development doesn't mean better custom development. If you build custom solutions without proper strategic foundation, you've just built technical debt more efficiently. The economic advantage only materializes if the other pieces (strategy, planning, architecture) are in place.

What Should Drive Your Economic Decision-Making?

The economic decision now depends less on raw development cost and more on strategic value. Can off-the-shelf solutions provide the differentiation you need? Or do you need custom capabilities that only purpose-built solutions deliver?

When Cortex evaluated build-versus-buy for construction drawing management, generic document management systems were cheaper initially. But they couldn't deliver the workflow integration that created economic value for construction teams. The custom development economics only worked because strategic clarity about required capabilities was solid.

What Economic Advantages Actually Matter Now?

If implementation costs are dropping across the board, where does sustainable economic advantage come from?

Why Does Problem Understanding Have the Highest Economic Leverage?

The first source of economic advantage is understanding the problem deeply enough to build the right solution. When building was expensive, you could succeed with mediocre solutions because alternatives didn't exist. When building becomes cheap, mediocre solutions face competition from other mediocre solutions and good solutions.

Deep understanding cannot be purchased or automated. It requires time with users, observing behavior, understanding frustrations. This work is inherently human and time-consuming, which makes it economically valuable precisely because it cannot be shortcut.

The ROI on this understanding has increased dramatically. In old economics, user research was a cost center that delayed revenue. In new economics, user research is the highest-leverage investment that prevents wasteful implementation spending.

What Design Economics Create Durable Value?

The second source of economic advantage is design excellence. User experience reduces friction, anticipates needs, creates flows that feel inevitable. Good design is economically valuable because it affects conversion rates, retention, customer lifetime value.

Design excellence requires taste, which is accumulated judgment developed through experience. AI can implement designs, but it cannot make design decisions that reflect understanding of human psychology. The designer who has spent years observing behavior brings economic leverage that AI cannot provide.

Our UX design process exists because the economic impact of design decisions is massive. A well-designed flow might convert 40% of users versus 15% for a poorly designed equivalent. That difference dwarfs implementation cost savings.

How Do Architectural Decisions Affect Long-Term Economics?

The third source of economic advantage is technical quality that enables evolution. Software isn't static. It evolves as requirements change. Technical decisions made at the start determine whether software can evolve gracefully or becomes an expensive burden.

AI-generated code solves immediate problems without considering long-term implications. It creates technical debt invisibly. It builds structures that work today but resist modification tomorrow, which destroys economic value over time.

Experienced engineers make decisions accounting for futures AI cannot anticipate. This economic leverage compounds. Good architecture might cost 20% more upfront but saves 300% over three years in maintenance and evolution costs.

How Should You Allocate Capital in This New Model?

If these are the new economics, how should founders actually allocate their development budgets?

What Deserves Premium Investment?

First, invest heavily in understanding before building. In old economics, you could justify starting with assumptions and learning through iteration. In new economics, cheap iteration is dangerous. You can iterate forever without converging on value.

Better to invest upfront in genuine understanding. This shifts budget allocation: more to research, less to implementation. The economic return is better even though it feels backwards.

Second, budget for design excellence. In old economics, design was often treated as overhead. In new economics, design quality directly affects unit economics through conversion, retention, and satisfaction. Design investment has measurable ROI.

Third, pay premium for architectural expertise. Cheap code is abundant. Code that evolves gracefully is scarce. Budget accordingly. The senior architect who can see three years ahead delivers economic value far exceeding their cost.

Fourth, constrain your scope strategically. The ability to build everything doesn't mean you should. Strategic constraint about what to build delivers better economic outcomes than building everything possible. Budget for the discipline to say no.

What Economic Lessons Should We Take Forward?

The bitter lesson is bitter because it tells smart people their cleverness matters less than they want. But there's an encouraging version of this lesson economically.

Where Should Capital Flow for Maximum ROI?

If AI shifts value from implementation to strategy, then capital should flow accordingly. The skills of understanding users, defining products, making sound strategic decisions were always important economically. They're now the primary source of economic advantage.

For those building software, this should prompt reexamination of where to invest capital and effort. The answer isn't to compete with AI on implementation costs. That's a race to the bottom. The answer is to excel at the work AI cannot do: strategic thinking, user understanding, architectural judgment.

After a decade and 200+ projects, we've learned that projects with best economic outcomes aren't those that implemented fastest or cheapest. They're those that understood clearest what was worth building. That understanding is where capital should flow.

The economics are bitter only if you were invested in old value sources. For those willing to reallocate capital to new value sources, the economics are actually quite favorable. The total cost of building great software may not have changed dramatically. But where those costs concentrate and what delivers ROI has shifted fundamentally. Understanding this shift is the difference between efficient capital allocation and wasteful spending in the AI era.

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