0800 458 4545 Login Get in touch
AI 19 min read

AI Strategy: Choosing When to Build, Buy or Consume AI

Artificial intelligence has moved beyond experimentation.  

The question for most organisations is no longer whether to adopt AI, but deciding when to build, buy or consume AI capabilities to create value without introducing unnecessary cost, complexity, or risk. 

Traditionally, technology leaders assessed new capabilities through a simple question: should we buy an off-the-shelf solution or build it ourselves?  

Today, AI has changed that equation.  

A third option has emerged, allowing organisations to consume AI on demand and pay for outcome rather than ownership.  

This shift means AI strategy is no longer purely a technology or procurement conversation. It is about making informed decisions around cost, value, governance and long-term business impact.  

The organisations that get this right won’t necessarily be the ones spending the most on AI. They’ll be the ones that understand when to buy, build or consume AI. 

Why the traditional buy-versus-build AI approach no longer works. 

Historically, the decision process was relatively straightforward. 

If a capability was common, proven and widely available, organisations would buy it. If it offered competitive differentiation or required deep integration with business processes, they would build it. 

AI has changed that equation because many platforms now offer multiple ways to solve the same problem. 

A user might be able to: 

  • Use a pre-built AI capability included within an existing licence 
  • Build a custom workflow or agent 
  • Consume AI services on a pay-as-you-go basis 

All three approaches may achieve a similar outcome. However, they operate under completely different cost, governance requirements, and level of control.  

This is where many organisations are beginning to encounter challenges. 

The hidden AI governance gap. 

One of the biggest misconceptions in AI strategy is that user choice alone will lead to the most efficient outcome. 

In practice, employees will typically choose whichever AI tool helps them complete the task fastest. 

That choice is rational from an individual perspective. But on a larger scale, there are risks incurred.  

When hundreds or thousands of employees are making their own decisions about choosing AI tools without visibility of associated costs, businesses can find themselves facing unpredictable consumption patterns, and unclear return on investment.  

This isn’t a training problem. 

It’s an AI governance problem. 

As AI becomes more capable, autonomous and outcome-driven, organisations need an AI strategy, a decision framework that help them decide when to build, buy or consume AI, while ensuring they are delivering measurable business value.  

Why Cost Isn’t the Best Place to Start. 

When organisations first examine AI consumption-based pricing, the first question is often: “How much will this cost us?” 

It’s a reasonable question, but not always the right place to start.  

A better question is: What is this replacing? 

Consider if you were creating an executive-level presentation from a large volume of information. 

There are multiple ways to complete this task: 

  • Manually researching, drafting and formatting the content 
  • Using AI as an assistant throughout the process 
  • Delegating the entire task to a more autonomous AI capability and reviewing the final output 

Each option carries a different cost profile. But the real comparison isn’t the AI cost in isolation. It’s the value of the time being recovered.  

Too often, organisations compare AI costs against a theoretical zero-cost alternative.  

The reality is that every business process already has a cost attached to it, whether that’s employee time, delayed decision making, opportunity cost or reduced productivity. 

The organisations seeing the greatest results from their AI strategy aren’t simply measuring AI spend. They’re measuring the value AI creates by replacing slower, more resource-intensive ways of working.   

Not every AI strategy requires the same approach.  

Another challenge organisations are facing is recognising that different AI approaches are suited to different types of work. 

Use AI assistance when you want to stay in control. 

Many tasks are best handled through AI capabilities embedded directly into business applications. 

Examples include: 

  • Drafting documents 
  • Summarising meetings 
  • Analysing spreadsheets 

In these scenarios, the people remain firmly in control of the process, reviewing and refining outputs as they go. 

The AI acts as an assistant that helps accelerate work rather than replace it.  

Consume AI when outcomes matter more than process. 

Other tasks are larger, more complex and involve coordinating information across multiple systems, applications or data sources. 

In these situations, users are less concerned about guiding every step and more interested in receiving an outcome. 

This is where consumption-based AI services and autonomous agents can provide significant value. 

The question shifts from: 

“Can AI help me do this faster?” 

to: 

“Can AI do this for me?”  

However, organisations must avoid assuming that every recurring task should be handled this way. Some processes become more cost-effective when standardised and governed through a purpose-built solution instead.  

The uncomfortable question: should you keep building AI? 

Over the past 12 to 18 months, organisations have poured significant investment into AI initiatives, with many experimenting with or rolling out custom AI agents and automations. 

At the time, that investment was often justified. 

However, the AI landscape is evolving quickly. 

Capabilities that once required bespoke development are increasingly becoming native features within major platforms. At the same time, new agentic and proactive AI services are reducing the need for lightweight solutions that many organisations previously developed themselves.  

That doesn’t mean custom AI development is no longer relevant or dead. 

Far from it. 

Building AI agents remains the right choice when solutions require: 

  • Proprietary or industry-specific knowledge 
  • Integration with core business systems 
  • Custom governance requirements 
  • Enterprise workflows shared across teams 
  • Competitive differentiation 

The key is recognising that AI strategy is not a one-time decision. 

What made sense to build six months ago may now be something you can buy, simplify or consume as a service. 

The most mature organisations are developing a regular cadence for reviewing those decisions rather than treating them as permanent investments. AI strategy should evolve as technologies, costs and business needs evolve. 

A practical AI Strategy framework for decision-making. 

While every organisation is different, a simple decision framework can provide a helpful starting point when deciding whether to build, buy or consume AI. 

Consume AI when: 

  • The task is ad hoc 
  • The audience is small 
  • Speed is more important than repeatability 
  • The outcome is difficult to predict 

Buy AI when: 

  • The capability is available through existing licences 
  • The use case is repeatable 
  • Individual users need frequent access 
  • The business wants predictable costs 

Build AI when: 

  • The process is business-critical 
  • Multiple teams depend on it 
  • External systems must be integrated 
  • Governance, reporting or compliance requirements are significant 
  • The solution delivers strategic value or differentiation 

Most importantly, revisit these decisions regularly. AI strategy is not a one-time exercise. AI capabilities are evolving too quickly for any framework to remain static. The most successful organisations continuously reassess when to build, buy or consume AI as technologies, costs and business needs change. 

The real AI strategy challenge isn’t technology. 

The biggest AI decisions organisations face over the next few years won’t be technical. 

They will be operational. 

  • Who decides when AI task should be consumed rather than built? 
  • Who owns spend optimisation? 
  • Who evaluates whether AI usage is delivering meaningful business value? 
  • And who is responsible for revisiting those decisions as AI capabilities continue to evolve? 

Historically, buy-versus-build AI was primarily a procurement decision. 

 Today, deciding whether to build, buy or consume AI is increasingly a governance decision, yet many organisations have not assigned clear ownership for making it. 

The organisations that succeed won’t necessarily be those investing the most in AI. They’ll be the ones with a clear AI strategy, strong governance and a consistent framework for deciding when to build, buy or consume AI. 

The sooner businesses recognise that shift, the better positioned they will be to capture the value of AI while maintaining control over cost, risk and long-term strategy. 

Not sure whether to build, buy or consume AI? 

Our experts can help you assess your AI strategy, identify the right approach for your organisation and build an AI strategy that delivers measurable business value.