The Three Options
The build vs buy question is actually a spectrum with three main options:
Buy Off-the-Shelf
Use existing AI products as-is. Examples: ChatGPT, HubSpot AI features, Xero's AI reconciliation.
Advantages
- Fast to implement
- Proven reliability
- Vendor handles updates
- Lower initial cost
Considerations
- Limited customisation
- May not fit your needs exactly
- Ongoing subscription costs
- Data may leave your control
Customise Platforms
Use AI platforms and tools to build tailored solutions. Examples: Custom GPT, trained chatbots, n8n/Make workflows.
Advantages
- Faster than building from scratch
- Can tailor to your needs
- Leverage existing infrastructure
- Balance of flexibility and speed
Considerations
- Requires technical expertise
- Platform dependencies
- May have limitations
- Some ongoing maintenance
Build Custom
Develop AI solutions from the ground up. Examples: Custom ML models, proprietary algorithms, unique AI products.
Advantages
- Complete control
- True differentiation
- Owns intellectual property
- No platform limitations
Considerations
- Highest cost
- Longest timeline
- Requires AI expertise
- Ongoing maintenance burden
Decision Framework
Ask these questions to guide your decision:
1. Is AI a competitive differentiator?
If Yes → Consider Building
AI that creates competitive advantage is worth investing in.
If No → Consider Buying
For operational efficiency, existing tools often suffice.
2. Do existing solutions meet 80%+ of your needs?
If Yes → Buy or Customise
Good enough is often good enough. Customise for the remaining 20%.
If No → Customise or Build
Significant gaps may require more tailored solutions.
3. Do you have AI expertise in-house?
If Yes → All options viable
Internal expertise enables any approach.
If No → Buy or Partner
Without expertise, work with vendors or AI agencies.
4. Is your data proprietary and valuable?
If Yes → Consider Building
Custom models trained on your data can be powerful assets.
If No → Buy or Customise
General-purpose AI tools work well with common data.
Our Recommendation for Most NZ Businesses
For most small and medium NZ businesses, we recommend a middle path:
The Customised Platform Approach
- 1Start with off-the-shelf tools for proven use cases (chatbots, email automation, document processing)
- 2Customise these tools with your specific knowledge, tone, and processes
- 3Connect tools together with workflow automation (n8n, Make, Zapier)
- 4Build custom only where you have truly unique requirements
- 5Partner with specialists for implementation and ongoing optimisation
This approach balances speed-to-value with flexibility, and allows you to build capability over time without massive upfront investment.
Need help deciding?
We help NZ businesses navigate the build vs buy decision with practical advice tailored to your situation.