Specialised versus general.
WHAT SPECIALISED TOOLS OFFER
An interface designed for one task Built-in prompting you do not have to write Integration with relevant systems Sometimes a model tuned for the task
WHAT GENERAL ASSISTANTS OFFER
Flexibility One tool for everything Lower total cost
WHEN A SPECIALISED TOOL IS WORTH IT
High volume of one task The workflow integration genuinely helps It does something a general model cannot
WHEN IT IS NOT
When it is a general model with a different interface and a higher price
That describes many products.
HOW TO TELL
Ask what it adds beyond the underlying model.
If the answer is only the interface, consider whether a good prompt achieves the same.
THE PROMPT ALTERNATIVE
A well-constructed reusable prompt achieves much of what specialised writing tools offer, at no additional cost.
Try that before subscribing.
THE PRACTICAL ADVICE
Start general. Specialise only where you have a demonstrated need.