ArtSTAR and ArtCORE are two different guitar models produced by Ibanez.
The ArtSTAR series is a line of premium jazz guitars, with a focus on high-end construction and materials such as solid tops and professional-level hardware.
They are designed for jazz musicians who demand top-level sound and playability.
The ArtCORE series, on the other hand, is a more affordable line of hollow and semi-hollow body guitars, made with a focus on versatility and affordability.
They are intended for players who want a hollow or semi-hollow body guitar for a variety of genres, including jazz, blues, and rock.
In terms of differences, ArtSTAR has a higher-end construction and better sound quality, while ArtCORE is more affordable and versatile. The ArtSTAR has a more refined and specialized jazz tone, while the ArtCORE can be used for a wider variety of genres and has a more versatile tone.