The phrase "a mere model" is correct and usable in written English.
It can be used to emphasize that something is only a representation or example, without any additional significance or value.
Example: "While the prototype looks impressive, it's just a mere model of what we hope to achieve in the final product."
Alternatives: "just a simple model" or "only a basic representation".
THE Ninja name has long since grown beyond a mere model designation used by Kawasaki to set apart its most sport-focused motorcycles.
And a mere model becomes a 'super' when she becomes not only stratospherically famous, but also when she somehow encapsulates her era.
What grounds do biologists have for believing that what is true of a mere model is true of many different organisms?
If concentration on the depiction of a mere model explains certain inhumane features of Plato's political vision, are there also indications that he was aware of the limitations he imposed on his 'political animals' by their confinement to just one function in an efficiently run community?
The self is here thus a mere model of the own body's and brain's processes.
Far more than any mere model town, Disney's vision was that of a living, breathing community – a combination of the urban and the pastoral that was both expansive and futuristic.
Just as it is quaint to think that Warren Buffett's conglomerate started out as a textiles firm, so it now seems bizarre that the Sage of Sussex began her career as a mere glamour model.
Especially, the cooperation between local experts (e.g., the mayors) and external experts during the workshop resulted in additional (unexpected) solutions that would never have been the output of a mere GIS modelling.
Not 80% role models, or 50%, or 25% or even 10% role models, but a mere 5% role models.
Combine the sales of the car divisions of Dodge, Chrysler, Ford and Chevrolet, and you won't reach that number even though we're talking about 30 car models versus a mere five truck models.
