A readable wiki.
A memory that travels.
Living Brain, from ChatAndBuild, compiles what it is sent into linked, versioned pages and flags contradictions for review. Kemory captures supported AI chats in the background, carries context between AIs and puts governance on every plan.
Last verified 7 November 2026 against primary sources
Two good answers.
Different jobs.
- You want memory you can read: source-linked, versioned pages with contradictions kept visible as contested pages.
- You are building an agent and are happy to decide in code, or let the model decide, what to save.
- You want daily briefs, webhooks and a graph view as part of the memory product.
- You want chats on ChatGPT, Claude, Gemini, Perplexity, Manus and Grok gathered in the background, with history import.
- Several people or organisations need to share memory with consent, credit and an audit trail.
- You want to continue a conversation in another AI, ask across everything with sources, or use Counsel.
See each one
doing its job.
Screenshots taken 7 November 2026. Living Brain is a trademark of its owner, shown here to identify the product.
At a glance
The same rows on every comparison, so you can read one page against another.
*89.6% end-to-end answer accuracy on LongMemEval-S, open-weight Llama-3.3-70B reader, six runs. See the benchmarks or the full method on docs.sekondbrain.ai. A dash means not documented, not proven absent.
The same job,
done two ways.
Living Brain's compiled pages, with versions and an explicit contested state, make memory easy to read and correct. Its SDK, CLI, webhooks, change feed and daily briefs give builders a lot out of the box.
The numbers,
and how each was run.
These rows use different datasets, splits, readers and retrieval budgets, so they cannot be compared directly. We publish the method, every run including the lower ones, and use an open-weight reader rather than a frontier model.
| Product | Benchmark | Score | What it measures | Setup | Reader model | Runs |
|---|---|---|---|---|---|---|
| Kemory | LongMemEval‑S | 89.6% | End-to-end answer accuracy | 500 questions, oracle split | Llama-3.3-70B (open-weight) | Six, with variance |
| Living Brain | LoCoMo | 92.2% | Judged accuracy, self-reported | 1,540 questions | Not stated | Not stated |
| Living Brain | LongMemEval-S | Up to 22.6× fewer tokens | Token savings, self-reported | Not stated | Not stated | Not stated |
What changed at Living Brain
Products move quickly. These are the dated changes this comparison has been checked against.
- 29 September 2026CLI v0.1.0.
- 4 November 2026Public launch, with multi-platform CLI v0.2.3.
- AnnouncedBrainBench, a self-hosted benchmark suite, “coming soon”.
Specialists do one job well.
Kemory holds the thread across them all.
Every year brings better models and you will keep trying them. Kemory sits above the models rather than inside any one of them, so what you have worked out goes with you.
Tell one AI something once, and every AI you use just knows it. Start a thought in one and carry on in another, mid-sentence.
Every memory is permissioned and every change is provable. We do not train on your data. Delete anything, and prove it is gone.
Compaction runs on an open-weight model, so the frontier model only ever sees the compacted version — not the pile.
Already using Living Brain? You do not have to replace it to try Kemory. Kemory connects to the AIs you use over MCP and Kora for Chrome.
Choosing Living Brain instead?
Good — it fits you better right now.
Come back to Kemory when cross-AI, governed memory is what you need.
Five questions,
Kemory vs Living Brain.
- What is the difference between Kemory and Living Brain?
- Living Brain compiles what an app or model sends it into linked, versioned pages. Kemory captures supported AI chats on its own, carries context between AIs and governs who may see what by default.
- Does Living Brain keep track of conflicting information?
- Yes. Its API documents contested pages: when new material contradicts a page, the page is marked contested until someone resolves which version wins.
- Can I use Living Brain in ChatGPT and Claude?
- Yes. Its documentation says ChatGPT and Claude users can connect with account sign-in; coding tools connect to the hosted MCP server with an API key.
- How is Living Brain priced compared with Kemory?
- Living Brain's API is pay as you go at $8 per million input tokens and $0.50 per million output, with a $5 minimum top-up; Workspace is $99 a month for three seats, and Business is custom. Kemory is free for 2,000 memories and two AIs, with Pro at $19.99 a month, Team at $30 a seat and Business at $55 a seat.
- Is Living Brain's 92.2% higher than Kemory's 89.6%?
- They measure different things. Living Brain's 92.2% is judged accuracy on LoCoMo, self-reported, with the reader model not stated. Kemory's 89.6% is end-to-end answer accuracy on the LongMemEval-S oracle split with an open-weight Llama-3.3-70B reader, across six runs.
More comparisons
Credit where it’s due. The real difference, either way.