Surface area
The face.
Custom avatars brought alive from the audio itself: lipsync, blinks, breathing, and expression states reacting through the interaction.
The voice.
Designed voices with a governed personality, tuned to the language and register the product demands.
The memory.
Per-user memory injected with human time, so the relationship accumulates instead of resetting.
The guardrails.
Manipulation gets met in character, not with a canned refusal. Battle-tested before users ever see it.
In practice
Turiya's Krishna is the reference build: a custom 3D character running on a phone at roughly three seconds end to end, speaking one script while displaying another so the sacred words sound right and read right. 3,000 beta users, 50,000 interactions, character held.
Stack neutral.
The character rides inside your product, not beside it: web, app, or a phone line. Rendering targets range from lightweight 2D to VRM 3D to Unreal, all driven by the same voice, memory, and state pipeline underneath.

