Yes.
As a premium subscriber, the models you create using Meshy are exclusively yours, and you have full rights to distribute and sell them.
However, if you're a free user, you are also welcome to sell the models, but we kindly ask that you credit Meshy for the tool's use in the description of your commercial page.
Here is an example attribution format you may use:
"Model created with Meshy – CC BY 4.0 License "