Both stocks delivered impressive gains in 2025, but which one of these two AI companies should you be buying for next year?Palantir Technologies (PLTR 0.58%) and BigBear.ai (BBAI +1.14%) specialize in providing artificial intelligence (AI) software solutions to both commercial and government customers. They help their customers integrate various types of generative AI tools into their operations to enhance productivity, which is why they have been popular among investors this year.While Palantir's stock pri ...