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Sift remembers your preferences, habits, goals, commitments, and context to give deeply personalized responses. The more you use Sift, the better it understands how you work.
Memory is a Premium feature. Free users have access to all other Sift features with limited AI usage.

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What Sift Learns

Facts & Context

Stable information about you—your major, school, work schedule, important people in your life.

Preferences

How you like to work—morning vs evening, long blocks vs short bursts, communication tone, scheduling habits.

Goals

Long-term aspirations with progress tracking—fitness, career, academic, financial, creative, and more.

Commitments

Major life phases—semesters, internships, trips, projects—with start/end dates and status tracking.

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How Memory Works

As you interact with Sift, it extracts durable information from your conversations and stores it for future use. Memory is built from:
  • Things you tell Sift — “I’m a CS major,” “I prefer studying in the morning”
  • Patterns Sift observes — You consistently schedule study blocks after 6pm, you always postpone Friday tasks
  • Integrations — Your courses from Canvas, contacts from email, events from calendar
  • Corrections — When you tell Sift it got something wrong, it remembers not to repeat the mistake

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What You Can Ask

"Remember that I prefer morning study sessions"
"What do you know about me?"
"I'm starting an internship at Google in June" (commitment)
"My goal is to get a 3.8 GPA this semester" (goal)
"Forget that I said I like evening classes"
"Update my major to Computer Science"

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Core Memories

The most important facts about you are marked as core memories—they’re always loaded into Sift’s context so it never forgets the essentials. These are identity-defining details that shape every response.

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Entity Graph

Sift builds a knowledge graph of the people, places, and things in your life:

People

Professors, classmates, advisors, coworkers—with roles and relationship context.

Courses

Course details, instructor, grade, credits—linked to your assignments and schedule.

Projects

Active projects with status, tech stack, linked tasks, and progress logs.
The entity graph helps Sift understand context. When you say “email Dr. Smith about my deadline,” Sift already knows who Dr. Smith is, what course they teach, and what deadline you’re referring to.

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Enforceable Preferences

Beyond passive memory, you can set rules that Sift actively enforces:
  • Scheduling rules — “Never schedule anything before 9am” (hard constraint)
  • Communication style — “Keep responses brief” or “Use bullet points”
  • Notification preferences — “Don’t disturb me between 10pm and 7am”
  • Email preferences — “Always CC my project partner on work emails”
These are different from regular memories—they’re actively enforced, not just remembered.

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Examples of Memory in Action

Without MemoryWith Memory
”When should I study?” → Generic suggestions”When should I study?” → “Your most productive hours are 9-11am. You have a gap before your 1pm lecture."
"Help me plan this assignment” → Standard breakdown”Help me plan this assignment” → “Based on similar assignments, this will take you about 4 hours. You tend to do your best writing in the morning."
"What’s important this week?” → Just lists tasks”What’s important this week?” → “Your Calc III exam is Thursday and you mentioned wanting to study over 3 days, so today’s a good day to start.”

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Privacy & Control

  • You own your memory — Ask Sift what it knows, delete specific memories, or clear everything
  • Strict extraction — Sift has a high bar for what gets saved (no ephemeral info, no sensitive data)
  • Memory stops updating if you downgrade from Premium, but nothing is deleted
  • Isolated storage — Your memories are encrypted and never shared

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Tips

  • Tell Sift about yourself early — The more context it has, the better it helps
  • Set preferences explicitly — “I prefer 90-minute study blocks” is better than hoping Sift notices
  • Track goals — Sift can check in on your progress and adjust plans accordingly
  • Log commitments — Internships, trips, and projects help Sift plan around major life events
  • Review what Sift knows — Periodically ask “What do you remember about me?” to keep things accurate