We're solving the intelligence trilemma: balancing intelligence, speed, and cost.
Living Brain is our AI memory layer, helping models remember and carry knowledge across tools. ChatChat is our no-code workspace to use Living Brain easily.
This is the 2nd launch from ChatAndBuild. View more
Living Brain
Launching today
Every AI conversation contains knowledge worth keeping, but most of it gets trapped in separate chats and tools. Living Brain captures that knowledge, connects it to what you already know, and turns it into a persistent memory that keeps evolving. Share that intelligence across AI models, apps, and agents through API, SDK, or MCP, so every new interaction builds on the last instead of starting over.
Reuse memory across ChatGPT, Claude, Gemini, OpenClaw, Hermes, Cursor, Codex and more
Payment Required
Launch Team / Built With
Atlassian LoomShow, don't just tell with Loom
Promoted
Lovable
Claude by Anthropic
Hey Product Hunt 👋 I’m Christel, founder of ChatAndBuild, and I was part of Twitter's first international team.
We have built the Living Brain - a model independent, harness independent, efficient brain that travels with you across any AI platform.
Living Brain gives your AI tools a shared, persistent memory. It turns your notes, documents and conversations into connected knowledge that you can inspect, update and reuse across compatible assistants and agents.
For example, save a project brief, customer requirements and the decisions behind your roadmap in one brain.
Connect it to your AI tools, and they can retrieve that context when you ask them to work on the project.
With Living Brain, you can:
🧠 Build a memory around your work, projects and preferences.
🔗 Reuse that memory across ChatGPT, Claude, Gemini, OpenClaw, Hermes, Cursor, Codex and more
🛠️ Give your own apps and agents persistent context through our API.
📚 Review the organised knowledge and the sources behind it.
We’re measuring how accurately AI can use that memory, alongside how much context it needs.
Our latest internal evaluations show:
We're #1 on LoCoMo with 92.2% judged accuracy, answering 1,420/1,540 questions correctly with approximately 63.8% less context.
Those context reductions compare average retrieved memory with the displayed full-history references — approximately 9.4K versus 26K tokens on LoCoMo, and 5.1K versus 115K on LongMemEval-S.
We want you to choose each AI for what it does best, with your accumulated context coming along.
We’re building this for people who use several AI tools, teams whose context is scattered, and developers building agents that need continuity.
I’d love to hear from you. What’s the one thing you’re tired of explaining to AI over and over?
Tell us your workflow. I’d love to see where Living Brain could help, and where we still need to improve.
— Christel
I like this. In my experience the built in AI memories keep the wrong things. They drags the reasoning into the output and forgets the one instruction I actually cared about. Can I see why something was kept or left out of a brain?
hey @simon_moxon! really like this comment thank you. In Living Brain you can inspect saved memory’s content, source, links and bucket; deprecated memories and high strain indicate what may need review and removed. This doc shows review your Living Brain’s health https://support.chatchat.com/en/articles/16445404-check-and-organise-your-living-brain
My favorite AI product at the moment!! As a student, I can confidently say that Living Brain helps to organize and store all the information needed for my academic achievements, and hence I have more space in my own brain for generating new ideas and learning new concepts🥳🤩
Been burned by memory tools that quietly inject stale context into new sessions. The health scores (Freshness, Strain, Readiness) are exactly what’s been missing. Love that you can see when memory goes stale. Proud to be a part of this team, we are here for more!
Interoperable memory systems are becoming only more important in a world where AI models change every month. Having a Living Brain has completely changed how I use AI in my daily life. Now I don't have to reintroduce myself every time because my memory travels with me!
Living Brain is live! Check out the launch video over on X too https://x.com/ladyxtel/status/2117980022250316282?a=yE7iUH8lx9pHg8SjoUQ&s=20
A big part of being a creator is moving between tools. One moment I'm editing a video, the next I'm searching for assets, organizing references, writing scripts, or experimenting with a different AI tool.
That's why I find Living Brain interesting. It's not about adding another tool to the workflow. It's about making the knowledge and context you've already built useful across the tools you work with.
Your tools should change as your work evolves. Your knowledge shouldn't have to start over.
Excited for what's ahead for Living Brain and @ChatAndBuild 🚀