Here is a compilation of 25 popular AI characters from fiction, encompassing both books and films, followed by a list of 25 more obscure ones:

25 Popular AI Characters:

HAL 9000 - 2001: A Space Odyssey (Arthur C. Clarke)
Samantha - Her (Spike Jonze)
The Terminator - Terminator franchise (James Cameron)
Cortana - Halo video game series
Skynet - Terminator franchise (James Cameron)
Ava - Ex Machina (Alex Garland)
WALL-E - WALL-E (Pixar)
GERTY - Moon (Duncan Jones)
Data - Star Trek: The Next Generation (TV series)
The Machine - Person of Interest (TV series)
KITT - Knight Rider (TV series)
Ash - Alien (Ridley Scott)
Vision - Marvel Comics
Roy Batty - Blade Runner (Philip K. Dick)
Marvin the Paranoid Android - The Hitchhiker's Guide to the Galaxy (Douglas Adams)
The Matrix - The Matrix trilogy (The Wachowskis)
Agent Smith - The Matrix trilogy (The Wachowskis)
TARS - Interstellar (Christopher Nolan)
VIKI - I, Robot (Isaac Asimov)
David - A.I. Artificial Intelligence (Steven Spielberg)
AM - I Have No Mouth, and I Must Scream (Harlan Ellison)
Bishop - Alien franchise (James Cameron)
Samantha- Blade Runner 2049 (Denis Villeneuve)
Joi - Blade Runner 2049 (Denis Villeneuve)
The AI System - Upgrade (Leigh Whannell)

Yay!!!