Catalog Systems Platform-provider memory Microsoft Copilot Memory

Microsoft Copilot Memory

https://learn.microsoft.com/en-us/copilot/microsoft-365/copilot-personalization-memory

Microsoft 365 Copilot memory (saved memories, chat-history details, custom instructions) stored in a hidden folder of the user's Exchange mailbox under mailbox compliance; on by default, admin-controllable; available to Copilot Chat users with or without an M365 Copilot licence. Docs still label it preview.

Active · Verified 2026-10-22 · fresh as of 2026-10-22 · 69 cited facts, 1 with a third-party source · Suggest a correction

At a glance

Type
Org / tenant-scoped (Exchange-backed) vendor fix
Tier
T1
Section
Platform-provider memory
Created
2025-07 (GA); public announcement June 2025 Microsoft Build vendor fix
Latest release
not applicable — not OSS fix
License
not applicable — not OSS fix
GitHub
not applicable — no GitHub repo fix
Pricing
Free + paid vendor fix
Funding
Microsoft public (MSFT); market cap ~$3T vendor fix
Freshness
2026-10-22 fix
Layer
agent-infra repo fix
Licensing
commercial vendor fix
Deployment locus
cloud vendor fix
Platform vs product
product vendor fix
Compliance
gdpr, hipaa, iso27001, iso42001 vendor fix

Memory taxonomy

storage
relational
retrieval
injection
persistence
long-term
update
extraction
unit
fact
governance
auditable
conflict
overwrite

When to use

Optimised for: compliance + tenant-scoped governance via Exchange

Anti-fit: not for non-M365 / non-Microsoft tenants

Pros & cons

Pros

Enterprise-ready by default — M365 tenant boundaries, audit trails, compliance certifications; Pages abstraction makes memory inspectable like a document.

Cons

Tied to M365 — non-MS users have no path; feature cadence slowed by enterprise compliance review.

Claims & capabilities

Microsoft 365 Copilot memory stored in user's Exchange mailbox with compliance alignment; GA July 2025 (announced June 2025 Microsoft Build); 75% of Fortune 500 on M365

Technical surface

API surface
not applicable — consumer feature
Backend storage
custom (Microsoft-managed)
Deployment
Managed-only
Embedding model
not applicable — consumer feature
Multi-tenancy
hard-isolation
MCP
via official adapter — Copilot Studio supports MCP
A2A
supported (Copilot Studio A2A integration)
OpenTelemetry
first-class (Copilot Studio + App Insights)

Alternatives to Microsoft Copilot Memory → live options ranked by shared design, licence, hosting and MCP support

Similar systems

Other platform-provider memory in the catalog, ranked by inbound references.

  • AWS Bedrock AgentCore Memory T2

    AWS managed memory service for agents running on Bedrock AgentCore. Native integrations with LangChain/LangGraph and Strands. Drives long-running MCP servers + agent workloads.

  • Vertex AI Memory Bank (now Agent Platform Memory Bank) T2

    Google Cloud managed memory service, now 'Agent Platform Memory Bank' in Gemini Enterprise Agent Platform. LLM-based memory extraction/consolidation from sessions (background, multimodal, custom topics), per-identity isolation, similarity search, TTL, revisions; used from ADK via VertexAiMemoryBankService.

  • Anthropic Claude Memory T1

    Memory tool API + consumer "Memory" feature + Auto Dream consolidation. Document-as-memory rather than extracted-fact-as-memory.

  • Anthropic Managed Agents — Memory T3

    Public-beta memory stores for Claude Managed Agents: workspace-scoped collections of text documents mounted into the session sandbox as a directory the agent reads and writes with its file tools; every change is versioned for audit and point-in-time restore, and memories can also be managed via API/Console.

  • Cloudflare Agent Memory T2

    Managed persistent memory service for AI agents on Cloudflare's edge. Private beta announced 2026-04-17. Sits alongside Workers AI / Vectorize as the memory tier of the Cloudflare agent stack.

  • Google Gemini Memory T1

    Gemini app learns from past chats via the Personal context setting (on by default, can be disabled; temporary chats excluded). Users can import memories and full chat history from ChatGPT, Claude and other assistants (18+, personal accounts, not EEA/CH/UK).

Sources (68 cited facts, 1 third-party)

Each fact links to the page it came from; the badge says who published it (how to read sources).