Memory built into your assistant.
Or memory across your assistants.
ChatGPT, Claude and Gemini now remember you with no setup, and each lets you review and delete memories. That memory lives inside one provider's app. Kemory captures your chats across assistants and serves one governed memory to all of them, and to your agents and colleagues.
Last verified 7 November 2026 against primary sources
Two good answers.
Different jobs.
- You mostly use one assistant and want memory with no extra product, account or extension.
- The provider's controls (review, edit, delete, incognito or temporary chats) are enough for you.
- You are moving to a new assistant once and a one-off import is all you need.
- You use several AIs and want what you said in one recalled in the others, continuously rather than as a one-off copy.
- You want to share memory with colleagues or other organisations, with consent, credit, revocation and a hash-chained audit trail.
- Your agents and coding tools need the same memory over MCP, an API or a CLI.
See each one
doing its job.
Screenshots taken 7 November 2026. ChatGPT and Claude memory 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.
Native memory is already there, with nothing to install or connect. Claude's memory spans chat and Cowork and is scoped per project, ChatGPT shows which memories shaped a reply, and both include memory on their free plans.
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 |
| ChatGPT and Claude memory | No memory benchmark published by OpenAI or Anthropic found | — | — | — | — | — |
What changed at ChatGPT and Claude memory
Products move quickly. These are the dated changes this comparison has been checked against.
- March 2026Gemini adds import from other AI apps, including ChatGPT and Claude export ZIPs.
- 5 May 2026ChatGPT shows a Sources icon for the memories or chats behind a reply.
- 31 October 2026Claude Team and Enterprise organisations created from this date start with memory on for each member.
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 ChatGPT and Claude memory? You do not have to replace it to try Kemory. Kemory connects to the AIs you use over MCP and Kora for Chrome.
Choosing ChatGPT and Claude memory 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 ChatGPT and Claude memory.
- What is the difference between Kemory and ChatGPT and Claude memory?
- ChatGPT and Claude each remember you inside their own app. Kemory captures your chats across ChatGPT, Claude, Gemini, Perplexity, Manus and Grok and serves one memory to all of them, plus your agents, with sharing, consent and audit.
- Can I move my ChatGPT memory to Claude or Gemini?
- Yes, as a one-off copy. Claude and Gemini each give you a prompt to run in ChatGPT and paste back, and Gemini also accepts a ChatGPT export ZIP of your chats. Neither keeps memory in sync afterwards.
- Does Claude's memory work across other AIs?
- Claude's memory is shared between Claude chat and Cowork in the cloud, but it is not documented as available to other providers' AIs. Kemory recalls the same memory in any MCP client.
- Is native memory free?
- Claude and ChatGPT include memory on their free plans; ChatGPT Plus and Claude Pro are $20 a month. Kemory is free for 2,000 memories and two connected AIs, with Pro at $19.99 a month, Team at $30 a seat and Business at $55 a seat.
- Why use Kemory if my assistant already remembers me?
- Because native memory serves one assistant. Kemory keeps one memory across ChatGPT, Claude, Gemini, Perplexity, Manus, Grok and your agents, and lets you share it with others under deny-by-default permissions and an audit trail.
More comparisons
Credit where it’s due. The real difference, either way.