Tai chi swords, also known as tai chi jian or taijijian, can come in both sharp and blunt versions. Traditionally, tai chi swords were primarily used as practice weapons and training tools for tai chi practitioners. In this context, they were typically blunt or had a dulled edge to ensure safety during training and partner exercises.

However, there are also tai chi swords available with sharp blades. These sharp versions are often used by practitioners who specialize in martial applications or specific sword arts associated with tai chi.

It's important to note that if you are considering acquiring a tai chi sword, it's advisable to consult with a reputable sword dealer or instructor who can provide information on the specific type and purpose of the sword you are interested in. They can guide you in selecting a sword appropriate for your intended use, whether it be for forms practice, martial applications, or decorative purposes.

Always prioritize safety and familiarize yourself with the laws and regulations regarding sword ownership and usage in your jurisdiction. If you plan to train or practice with a sharp tai chi sword, it is recommended to seek proper training and instruction from qualified instructors who can teach you the appropriate techniques, safety protocols, and ethical aspects associated with the use of such weapons.