Vol. 001 · Jeffs Brain · Amsterdam · EU MMXXVI · Coming Soon

A memory that remembers. 1

Jeffs Brain is an open-source memory package and platform. It scored 93.4% on LongMemEval with gpt-4o acting as both actor and judge. The code is nearly ready.

benchmark below

LongMemEval  //  score

Run 001 · MMXXVI
93 . 4 %
gpt-4o actor + judge
LongMemEval v1 · public
500 convos long-horizon recall
pending third-party reproduction

Forthcoming

Dispatches I — VI
  1. I

    The library

    MIT · opening soon

    Open-source memory. Embeddable. Python, TypeScript, Go. Run it locally or behind your own walls.

  2. II

    Git-backed brains

    storage · in testing

    Every memory is a commit. Diff, branch, roll back, merge. A mind you can git log.

  3. III

    Access control

    RBAC · shipping v0

    Who and what can read, write, or merge memories and the articles behind them. Per-brain ACLs, scoped keys, full audit trail.

  4. IV

    EU-hosted brains

    private beta

    The platform, entirely in the EU. MCP server baked in. Bring your own model keys. Data paths that don’t cross the Atlantic.

  5. V

    One API

    docs forthcoming

    write · recall · consolidate · reflect · ask. Model-agnostic — frontier, local, or whatever ships next week.

  6. VI

    Any harness

    integrations shipping

    One MCP server, one CLI, SDKs for TypeScript and Go. Drops into Claude Code, Codex, Jeff, ForgeCode, or whatever you’re building.

1  LongMemEval v1, 500 long-horizon conversations. Score of 93.4% with gpt-4o as both actor and judge. Full methodology & seed log published with the repo, after third-party reproduction.