Artificial intelligence is changing the speed, accuracy and defensibility of capital cost estimates. We examine the practical applications — and the limits — of AI in cost engineering.

The term artificial intelligence is applied to an enormous range of techniques — from simple regression models to deep learning neural networks. In the context of cost engineering for capital projects, the most valuable applications are those that improve data quality, accelerate analysis and reduce uncertainty — not those that promise to replace the cost engineer.
One of the most mature AI applications in cost engineering is the use of machine learning to develop and refine cost curves. By training models on executed project data, it is possible to identify non-linear relationships between project parameters (capacity, throughput, complexity) and installed cost that would not be visible through conventional regression analysis.
CAF Corporation Kpex platform incorporates ML-driven cost curve models for major facility types — oil and gas, power, renewables, mining and infrastructure. These models are continuously updated as new executed project data is added to the database.
A less obvious but highly practical application of AI is in the interpretation of project scope documents. NLP models can parse engineering deliverables, extract quantities and flag scope gaps — reducing the time a cost engineer spends on data preparation and increasing the time available for analysis and judgement.
AI cannot substitute for engineering judgement, project context or the experience of a seasoned cost engineer. It can process data faster and identify patterns across larger datasets — but the interpretation of results and the communication of uncertainty to project decision-makers remains a fundamentally human activity.