Says anyone who has seen them at work. They very obviously do not possess intelligence with how often they fall over at basic tests that would never trip up a human. For example, the "how many r's are in the word 'strawberry'" test. No person who is literate in English would fail this, but LLMs do (or did, until the companies making them put in a kludge because they were embarrassed by how it revealed the stupidity of their models).