Even in the rapidly expanding AI space, high-flying stocks eventually need to prove their business isn't all sizzle and no steak. Unfortunately, BigBear.ai doesn't pass the test.

Alphabet recently posted some solid earnings numbers, and artificial intelligence isn't hurting its business, as some investors feared it might.

Drawing from Harry Frankfurt’s classic definition, the researchers analyzed 2,400 real-world prompts across 100 artificial intelligence (AI) assistants, spanning political, medical, legal, and customer-facing contexts.