The more popular version of the Talos story can be found in the Argonautica. In it, Talos was an automaton, a self operating machine. He was forged by Hephaistos and was tasked by Zeus to guard Europa's hideout in mount Dikti (in Crete):
And Talos, the man of bronze, as he broke off rocks from the hard cliff, stayed them from fastening hawsers to the shore, when they came to the roadstead of Dicte's haven. He was of the stock of bronze, of the men sprung from ash-trees, the last left among the sons of the gods; and the son of Cronos gave him to Europa to be the warder of Crete and to stride round the island thrice a day with his feet of bronze. Now in all the rest of his body and limbs was he fashioned of bronze and invulnerable; but beneath the sinew by his ankle was a blood-red vein; and this, with its issues of life and death, was covered by a thin skin. So the heroes, though outworn with toil, quickly backed their ship from the land in sore dismay.
Source: The Project Gutenberg EBook of The Argonautica, by Apollonius Rhodius
Pseudo-Apollodorus' version differs a bit; Talos is tasked by king Minos to patrol Crete, and he might be shaped like a bull:
Putting to sea from there, they were hindered from touching at Crete by Talos. Some say that he was a man of the Brazen Race, others that he was given to Minos by Hephaestus; he was a brazen man, but some say that he was a bull. He had a single vein extending from his neck to his ankles, and a bronze nail was rammed home at the end of the vein. This Talos kept guard, running round the island thrice every day; wherefore, when he saw the Argo standing inshore, he pelted it as usual with stones. His death was brought about by the wiles of Medea, whether, as some say, she drove him mad by drugs, or, as others say, she promised to make him immortal and then drew out the nail, so that all the ichor gushed out and he died. But some say that Poeas shot him dead in the ankle.
Source: Book 1, Apollodorus, Library, Sir James George Frazer, Ed.
Regardless of these differences Talos doesn't appear to be intelligent in either version. He is following instructions mechanically, similarly to Hephaistos' other automatons (e.g. the Khalkotauroi or the Cabeirian Horses).
As a sidenote, these coins from Phaistos tell us the Cretans thought Talos had wings.
Unfortunately a tale of a flying Talos didn't survive.