Vertex AI Memory Bank
https://docs.cloud.google.com/agent-builder/agent-engine/memory-bank/quickstart-adk
Google Cloud managed memory service (Preview). Used by ADK's VertexAIMemoryBankService for cross-session persistent memory. Intelligently stores and retrieves memories from past user interactions.
At a glance
- Type
- Managed Vertex memory service
- Tier
- T2
- Section
- Platform-provider memory
- Created
- 2025-07-08 (public preview announced)
- Latest release
- not applicable — not OSS
- License
- not applicable — not OSS
- GitHub
- not applicable — no GitHub repo
- Pricing
- Pay-per-use
- Funding
- Google/Alphabet public (GOOGL); market cap ~$2T
Taxonomy
- storage
- vector
- retrieval
- similarity
- persistence
- cross-session
- update
- extraction
- unit
- fact
- governance
- opaque
- conflict
- none
When to use
Optimised for: GCP Vertex-native managed memory
Anti-fit: not for non-GCP stacks; Preview maturity
Pros & cons
Pros
Google Cloud-native managed memory with strong RAG integrations and enterprise governance posture.
Cons
GCP-only; pricing tied to Vertex; smaller mind-share than AWS / Anthropic memory.
Claims & capabilities
Google Cloud managed memory service (Public Preview 2025-07-08); used by ADK's VertexAIMemoryBankService for cross-session persistent memory; intelligently stores and retrieves memories from past user interactions; rebranded as Gemini Enterprise Agent Platform Memory Bank at Google Cloud Next 2026 (GA 2026-04-22)
Technical surface
- API surface
- REST, gRPC, SDK: Python, Java, Node.js, Go
- Backend storage
- custom (Google-managed)
- Deployment
- Managed-only
- Embedding model
- multiple supported
- Multi-tenancy
- hard-isolation
- MCP
- via official adapter (ADK)
- A2A
- supported — A2A native
- OpenTelemetry
- first-class — Cloud Trace / OTel
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.
- 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
Mounts memory as files on a managed filesystem; Claude reads and writes via the same bash/code-execution tools used for agentic tasks. Unit of storage is a file — inspectable, editable, exportable by developers. Full audit log per session. Memory beta launched April 23, 2026, two weeks after Managed Agents itself launched April 8.
- Cloudflare Agent Memory T2
Managed persistent memory service for AI agents on Cloudflare's edge. Beta-launched April 2026. Sits alongside Workers AI / Vectorize as the memory tier of the Cloudflare agent stack.
- Gemini Enterprise Agent Platform Memory Bank (rebrand of Vertex AI Memory Bank) T1
GA at Google Cloud Next 2026 (2026-04-22). Vertex AI rebranded as Gemini Enterprise Agent Platform; Memory Bank now "Agent Platform Memory Bank" with new continuous event-streaming + automated memory generation triggered by configurable criteria (event count or idle time). Backed by Agent Runtime that supports long-running agents that maintain state for days. Note: separate "Memory Profiles" feature reported in TheNextWeb but not surfaced in official Google Cloud release notes — treated here as unconfirmed.
- Google Gemini Memory T1
Personal Context setting + Personal Intelligence packing. Memory import from ChatGPT/Claude (Mar 2026).