In this paper, we investigate the existence and uniqueness of $$(\omega ,Q)$$
(
ω
,
Q
)
-periodic mild solutions for the following problem $$\begin{aligned} x'(t)=Ax(t)+f(t,x(t)),\quad t\in \mathbb {R}, \end{aligned}$$
x
′
(
t
)
=
A
x
(
t
)
+
f
(
t
,
x
(
t
)
)
,
t
∈
R
,
on a Banach space X. Here, A is a closed linear operator which generates an exponentially stable $$C_0$$
C
0
-semigroup and the nonlinearity f satisfies suitable properties. The approaches are based on the well-known Banach contraction principle. In addition, a sufficient criterion is established for the existence and uniqueness of $$(\omega ,Q)$$
(
ω
,
Q
)
-periodic mild solutions to the Hopfield-type neural network model.