As of 2020, there are 12 Instant Pot models. The Duo and Duo Nova are two of the models currently available. There is also the Lux, Duo Plus, Ultra, Smart, Duo Crisp + Air Fryer, Pro Crisp + Air Fryer, Duo Evo Plus, Max, Viva, and Duo Gourmet. Some models and versions within a series are exclusive to certain stores. For example, the Duo Gourmet is exclusive to Costco. And the Star Wars-branded series was exclusive to Williams Sonoma when it was released.