OpenAI ChatGPT Memory

https://openai.com/index/memory-and-new-controls-for-chatgpt/

First-party ChatGPT memory combining saved memories, reference to past chats, custom instructions and connected apps; 'improved memory' keeps an evolving summary (legacy list-style saved memories still selectable), with review/correct/delete controls and temporary chats.

Active · Verified 2026-10-22 · fresh as of 2026-10-22 · 71 cited facts, 4 with a third-party source · 1 recorded change · Suggest a correction

At a glance

Tier
T1
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
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
Protocols
mcp-client vendor fix
Compliance
gdpr, soc2-type2 vendor fix

Memory taxonomy

storage
kv
retrieval
injection
persistence
long-term
update
extraction
unit
fact
governance
user-controllable
conflict
llm-arbitrate

When to use

Optimised for: auto-extracted persistent facts about the user

Anti-fit: not for enterprise / programmatic memory; not for compliance-regulated data without ChatGPT Enterprise

Pros & cons

Pros

Largest installed base of memory-using AI users by orders of magnitude; cross-conversation context reads chat history automatically since Sept 2025.

Cons

Memory is opaque — no inspect/edit primitive beyond the settings UI; cross-thread leakage has been a recurring privacy concern.

Claims & capabilities

First-party memory in ChatGPT; auto-extracts persistent facts about the user across sessions; 2024-02-13 limited rollout; mid-2024 GA; April 2025 expansion to chat-history referencing; 100M+ MAU largest installed base; 26 HN + 4 press mindshare

Technical surface

API surface
not applicable — consumer feature, no public API
Backend storage
custom (OpenAI-managed)
Deployment
Managed-only
Embedding model
not applicable — consumer feature
Multi-tenancy
hard-isolation (per-account)
MCP
native (first-party) — ChatGPT apps support MCP connectors
A2A
not supported
OpenTelemetry
no — consumer product

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 (70 cited facts, 4 third-party)

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

What changed

Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)

  1. 2026-10-22
    • Funding / ownership “OpenAI total $57B+ raised; $300B+ valuation (2025)” → “$122B round at $852B valuation (closed 2026-04; Amazon, Nvidia, SoftBank)” source
    #219

Related systems

References (1)