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ZeroTwo offers three layers of personalization that work together to make every conversation feel like it was built for you. You don’t have to configure anything to get started — Memory is on by default and begins working immediately.

The three layers

LayerWhat it doesWhere to set it
MemoryZeroTwo automatically learns facts about you from your conversations and uses them in future chatsSettings → Personalization → Memory
Custom InstructionsYou explicitly tell ZeroTwo who you are and how you want it to respond — applied to every new chatSettings → Personalization → Custom Instructions
PreferencesControls defaults: which model is pre-selected, which tools are always on, your preferred voice, agent behaviorSettings → Preferences

How the layers work together

The three layers stack to create a full personalization profile:
  1. Memory contributes background context — your role, projects, habits, and preferences ZeroTwo inferred from your conversations
  2. Custom Instructions set explicit rules — tone, format, language, and background you want ZeroTwo to always know
  3. Preferences define defaults — the model, tools, and voice that are active when you start a new chat
When you start a new conversation, ZeroTwo combines all three layers to shape its initial behavior. Anything you specify directly in the chat always takes priority over all three layers.
Custom Instructions and Memory are applied at the start of new chats. They are not retroactively applied to existing conversations.

Access personalization settings

All personalization settings live in Settings → Personalization:
  • Memory — view, edit, delete memories; toggle memory on/off
  • Custom Instructions — set your background and response preferences
  • Theme — Light / Dark / System
  • Language — choose from 11 supported languages
Settings → Preferences covers model defaults, tool defaults, voice selection, and agent confirmation behavior.

Personalization and privacy

  • Memories are stored per-account and are never shared with other users
  • Custom Instructions are private to your account
  • Memories are not used to train ZeroTwo’s underlying models
  • On Business plan, org admins may have visibility into account data per your organization’s policy

Get started

Memory

How ZeroTwo automatically learns from your conversations

Custom Instructions

Set explicit instructions that apply to all new chats

Theme & Language

Appearance and interface language settings

Preferences

Default model, tools, voice, and agent behavior