Unlike the Gospels, which are classified as ancient biography (bios), the Life of Apollonius is likely a novel or hagiographic fiction. It includes fire-breathing dragons on every hill in India, fish-cows, hobgoblins, and other fantastical content not treated as miraculous but as straightforward description of faraway places.

The Gospels are recognized in New Testament scholarship as ancient biography (bios), a genre focused on carefully portraying a real person's life and character. The Life of Apollonius does not meet this standard — it is more likely a literary novel meant to inspire devotion, as evidenced by its fantastical content, internal contradictions, and the explicit political agenda behind its commissioning.

Charles Talbert (1977) identified the Gospels as ancient biography; Richard Burridge confirmed it

The scholarly turning point on Gospel genre.

Difference between biography and history as genres — and why biography is a historical genre

Clarifying what it means that the Gospels are ancient biography rather than history.

Mike identifies the naked young man fleeing in Mark 14:51-52 as likely the author Mark himself, explaining this was a common ancient biographical convention of embedding the author’s presence discreetly in the narrative.

Response to viewer question about the identity of the young man in Mark 14:51-52