There are three primary types of neural interfaces. Invasive interfaces involve electrodes implanted directly into the brain, offering high-resolution data but with increased risks. Semi-invasive interfaces place electrodes on the brain's surface, providing a middle ground in terms of data quality and risk. Non-invasive methods, like EEG, capture brain activity externally, offering safety but at the cost of resolution. Each type has its own set of advantages and challenges, and the choice depends on the specific application and desired outcomes.