It depends on the type of work. A predictive modelling project with clean, structured data typically falls between £18,000 and £45,000. That covers the data audit, model development, validation, and deployment as a production API. Computer vision projects run higher because of the image labelling and GPU training costs; expect £30,000 to £70,000 for a system that handles real-time inspection on a production line.
We always agree a fixed-price ceiling before work starts. If our estimate turns out to be wrong, we absorb the overrun, not you.