AI brains landscape · updated November 2026
AI brain providers, compared.
A working map of AI brain tools sorted by what you need them to do: keep a personal brain, remember people, understand company knowledge, answer from documents, run workflows, or give employees an approved assistant where they already work.
Start with the job
What do you need AI to do?
Use cases first, plumbing second. Pick a need state to understand the category, then use the full provider comparison below for the details.
| Provider | Use-case category | MCP | Integrations | Pricing | Details |
|---|
October audit — the original entries were re-verified Oct. 18, 2026 against vendor sites, docs, repos, and package registries, with five app-backend entries added Oct. 19: 251 source URLs. Of the links probed, all but three answered (one MCP endpoint correctly requires auth; one community site was transiently down; one cited licence path proved a licence file did not exist, which is now the recorded finding). Of 29 GitHub-linked projects, none is archived and the oldest push is 102 days (Kombo Company Brain). 34 of those 53 entries ship a first-party MCP server — each server claim was independently re-checked against npm, PyPI, and the vendor's own docs, and where a package turned out to belong to an unrelated project it was rejected. Update Nov. 2: Doco added from two official pages, bringing the comparison to 54 entries and 253 source URLs. Its MCP server is vendor-documented; runtime behavior was not tested. Update Nov. 3: Hyperspell added from six official sources, bringing the comparison to 55 entries and 259 source URLs. Its hosted MCP server is vendor-documented; runtime behavior was not tested. Recheck Nov. 3: all 55 entries were re-probed — 325 cited URLs, 29 GitHub repos, 22 published prices, and 31 MCP endpoints or packages. No repo is archived or dormant. Five entries changed: Mem0 dropped its $19 and $249 tiers for Free and Custom plans; qKnow no longer publishes its CNY 20,000 branding fee; Neo4j's MCP hostname stopped resolving, so the entry now lists the working endpoint; Enzyme is now Apache-2.0; and EON Tacit's vendor announcements were removed, leaving only its live prototype. The comparison now cites 255 source URLs. Open any row to see that entry's sources. This is a public snapshot, not procurement advice: recheck pricing, security, and maturity before buying.
How to read this landscape
Use cases first, labels second.
This page is a public snapshot, not procurement advice. The most useful question is not “which category is canonical?” but “what job do you need the brain to do?” The table is grouped in four tiers — products you buy, memory infrastructure, build substrates, and personal or emerging tools — so you can tell a thing you deploy apart from a thing you assemble. Use the comparison as a starting map, then recheck pricing, security, and product maturity before making a buying decision.
Current thesis
The winner probably needs two kinds of memory.
Shared company memory answers: what does the organization know across docs, customers, workflows, decisions, tools, and people?
Transactive memory answers: who or what knows this, where is the authoritative version, and how should the right context be retrieved before work starts?
Agent-specific adaptive memory answers: what has this AI worker learned from doing its job for this customer, team, or process?
The serious product will need both, plus governance. Otherwise you either get a smart search box that never learns from work, or a learning agent with no trustworthy company context.