Perplexity Brain

https://www.perplexity.ai/

Topic-organised shared memory layer under Perplexity Search, the Computer agent and possibly Comet; stores projects, decisions and sources, retrieves selectively per task, and exposes topics plus a 3D connection map to the user. Traction: Major-vendor announcement; Perplexity claims +25% correctness, +16% recall, -13% cost on context-dependent tasks

Active · Verified 2026-10-23 · fresh as of 2026-10-23 · 11 cited facts, 1 with a third-party source · 1 recorded change · Suggest a correction

At a glance

Type
Product vendor fix
Tier
T3
Created
searched not found fix
Latest release
searched not found fix
License
proprietary vendor fix
GitHub
not applicable — no GitHub repo fix
Pricing
searched not found fix
Funding
searched not found fix
Freshness
2026-10-23 fix
Layer
agent-infra repo fix
Licensing
commercial vendor fix
Deployment locus
cloud vendor fix
Platform vs product
product vendor fix
Accelerator
ai-grant third-party fix

Memory taxonomy

storage
proprietary
retrieval
agentic
persistence
long-term
update
extraction
unit
fact
governance
inspectable
conflict
n/a

When to use

Optimised for: searched not found

Anti-fit: searched not found

Pros & cons

Pros

searched not found

Cons

searched not found

Claims & capabilities

searched not found

Technical surface

API surface
searched not found
Backend storage
searched not found
Deployment
searched not found
Embedding model
searched not found
Multi-tenancy
searched not found
MCP
searched not found
A2A
searched not found
OpenTelemetry
searched not found

Similar systems

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

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  • Anthropic Claude Memory T1

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  • 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 (10 cited facts, 1 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. 2026-10-23 Added to the catalog #222