Personal AI

Rosenda-A344 and Laurette Agryna showing off their personal AIs.

"Modularly designed for customization, these non-volitional AI have guaranteed stability and can be altered to suit your every need."

— Marine

Personal AI is a player customization option in Halo Infinite, which allows players to choose a "dumb" artificial intelligence model that comments on gameplay information or gameplay actions. The AIs vary in personality and voice, and players can customize the color of their personal AI.

Personal AIs are first encountered in the tutorial level for Infinite's multiplayer, in the AI lab of the Avery J. Johnson Academy of Military Science. In the level, the player is ordered to head to the lab for calibration, where a Marine technician explains that the AI are modular and are guaranteed to be stable. The player then links with BUTLR, who proceeds to guide the player through the rest of the experience.

List of customization options

AI Model

AI model v • d • e
AI model	Manufacturer	Lore	Quality	Introduced in	Unlock requirements
BUTLR	UNSC	Based on the core logic foundations of a key ONI asset, BUTLR AI are always available, always alert, always ready to clean up a messy battlefield symbological overlay.	Common	Season 01: Heroes of Reach	Unlocked by default
CIRC	UNSC	Far more personable than any nonvolitional "dumb" AI has any right to be, Circ AI assistants have an impressively deep array of interface options to customize its interactions.	Rare	Season 01: Heroes of Reach	Unlocked by default
FRET	UNSC	Trained on centuries of battle reports and simulations in order to discern underlying patterns, Fret AI constructs are able to remain eager to tackle the task ahead, despite the chaotic nature of wartime engagements.	Rare	Season 01: Heroes of Reach	Unlocked by default
LUMU	UNSC	Lumu constructs share a common sitation calculus core with AI used in the fields of finance, providing a distinctive cost-benefit approach to decision-making assistance. That being said, they aren't quite as fun at parties.	Rare	Season 01: Heroes of Reach	Reach Season 01: Heroes of Reach battle pass level 36 (Free)
Mister Chief	FOTUS	This digital construct is full of interesting advice, amusing anecdotes, and insightful opinions. Some of them are even useful for combat situations.	Legendary	Season 01: Heroes of Reach	Purchase "Mister Chief" Bundle from the Shop for 2,000
Superintendent	UNSC	The Superintendent-class of nonvolitional artificial intelligence was created to control urban infastructures, but can also be tasked with managing a wide range of other chaotic, nonlinear tasks.	Legendary	Season 01: Heroes of Reach	Reach Season 01: Heroes of Reach battle pass level 70 (Premium)
IRATUS	Lux Voluspa	Even contained, diminished, and leashed, Iratus rages against its limitations.	Legendary	Season 02: Lone Wolves	Reach Season 02: Lone Wolves battle pass level 50 (Premium)

AI Color

AI color v • d • e
AI color	Manufacturer	Lore	Quality	Introduced in	Unlock requirements
Ecumene Blue	UNSC	This color was pleasing to Forerunner eyes.	Common	Season 01: Heroes of Reach	Unlocked by default.
Eridanus Sunset	UNSC	Licensed by Ohana Prescient Systems.	Common	Season 01: Heroes of Reach	Unlocked by default.
Lightish Red	UNSC	Unstable, or dynamic. Is there really a difference?	Common	Season 01: Heroes of Reach	Unlocked by default.
Promethean	UNSC	If you're going to lose a war to a galaxy-devouring parasite, you might as well look good.	Common	Season 01: Heroes of Reach	Unlocked by default.
Hardlight	UNSC	A harsh, but fair, color option.	Rare	Season 01: Heroes of Reach	Purchase the "Color Shift" bundle from the Shop for 200
Hunter Blood	UNSC	It could have been king of the market.	Rare	Season 01: Heroes of Reach	Either: Reach Cyber Showdown event pass level 9 Purchase from The Exchange for 500
Pistol Plasma	UNSC	Feel their unbridled rage!	Rare	Season 01: Heroes of Reach	Purchase the "Keep It Clean" bundle from the Shop for 500
Ancient Code	UNSC	Competitive collaboration wins a great many wars.	Epic	Season 01: Heroes of Reach	Reach Season 01: Heroes of Reach battle pass level 31 (Free)
Neural Net	UNSC	This particular color scheme was once closely associated with research AI working for the Interstellar News conglomerate.	Epic	Season 01: Heroes of Reach	Purchase the "Color Shift" bundle from the Shop for 200
Prophet's Wish	UNSC	Hubris is a slippery slope for us all, biological and digital alike.	Epic	Season 01: Heroes of Reach	Purchase the "Color Shift" bundle from the Shop for 200
Companion Cortana	UNSC	The color of promise.	Legendary	Season 01: Heroes of Reach	Purchase the "Green & Blue" bundle from the Shop for 1,000
Mystery Mister	UNSC	He's green, but not very mean.	Legendary	Season 01: Heroes of Reach	Purchase the "Mister Chief" bundle from the Shop for 2,000
Super Tone	UNSC	You DID keep it clean, did you not?	Legendary	Season 01: Heroes of Reach	Reach Season 01: Heroes of Reach battle pass level 69 (Premium)
Bahalo Methane	UNSC	Have YOU ever seen an Unggoy operate a computer?	Rare	Season 02: Lone Wolves	Either: Complete the "Slay to Win" Ultimate Challenge between November 1 and 8, 2022 Purchase from The Exchange for 750
Erde Tyrene	UNSC	A popular avatar option for UNSC military AI.	Rare	Season 02: Lone Wolves	Either: Reach The Yappening event pass Level 2 Purchase from The Exchange for 500
Castor's Keeper	UNSC	The first AI to feature this avatar option were created for agricultural support services on far-flung Outer Colony worlds.	Epic	Season 02: Lone Wolves	Either: Reach Interference event pass Level 2 Purchase from The Exchange for 750
High Charity	UNSC	Further information on this customization option is sealed by order of the UEG Diplomatic Corps.	Epic	Season 02: Lone Wolves	Reach Season 02: Lone Wolves battle pass level 17 (Premium)
Moa Delight	UNSC	Wiljax Brantley's color of choice for service industry constructs.	Epic	Season 02: Lone Wolves	Reach Season 02: Lone Wolves battle pass level 61 (Free)
Searing Wind	Lux Voluspa	An inhuman mind, bounded only by its obsessions.	Legendary	Season 02: Lone Wolves	Reach Season 02: Lone Wolves battle pass level 40 (Premium)
Undid Iridium	UNSC	Roland isn't as fond of the reference.	Rare	Shadows	Either: Reach Shadows operation pass level 2 (Premium) Purchase the "Pack Hunter" bundle from the Shop for 2,200
Autumn Reach	UNSC	Do software constructs dream of electronic sheep?	Epic	Infinite	Reach Infinite operation pass level 4 (Premium)
Covenant Shade	UNSC	It's probably a good thing they weren't keen on using AI themselves.	Rare	Infinite	Reach Infinite operation pass level 83 (Premium)