Your memory. Your machine. Any model.
Athena is an open-source AI personalization layer that gives you persistent memory, structured reasoning, and full data ownership — across ChatGPT, Claude, Gemini, and any model you switch to next. Platforms forget. Athena doesn’t.Quick start
Get up and running in 5 minutes
Installation
Set up your workspace step by step
Your first session
Walk through a guided tutorial
Architecture
Understand how Athena works
The problem
You’ve spent months training ChatGPT to understand you. Then a model update resets the personality. Your custom instructions stop working. You can’t find that conversation from last Tuesday. And if you switch to Claude or Gemini? You start from zero. Platform memory is unreliable, opaque, and locked to one provider. You don’t own it, you can’t inspect it, and you can’t take it with you.Why Athena?
Athena moves the memory layer to your machine. Plain Markdown files that you own, version-control, and point at any model.Your memory, your machine
Files on your disk, not in OpenAI’s cloud. Read them, edit them, git-version them.
Switch models freely
Claude today, Gemini tomorrow, GPT next week. The memory stays. The model is just whoever’s on shift.
It compounds
Session 500 recalls patterns from session 5. Platform memory decays; Athena’s doesn’t.
Governed autonomy
6 constitutional laws, 4 capability levels, bounded agency.
~10K token boot — 95% of your context window stays free, even after 10,000 sessions.
How it works
Every session follows one cycle:/start → Work → /end. Each cycle deposits structured memory. Over hundreds of cycles, the AI stops being generic and starts thinking like you.
| Sessions | What happens |
|---|---|
| 1–50 | Basic recall — remembers your name, project, preferences |
| 50–200 | Pattern recognition — anticipates your style and blind spots |
| 200+ | Deep sync — thinks in your frameworks before you state them |
What’s in the box
Everything you need to turn a generic AI into your AI — pre-configured, no assembly required.- Core Identity — Your AI’s personality, principles, and boundaries — editable, version-controlled
- Cognitive Clusters — Groups related protocols into auto-co-activating bundles — 3 starter clusters included
- 110+ Protocols — Ready-made decision frameworks (risk analysis, research, strategy) across 15 categories
- 50+ Slash Commands — One-word triggers:
/start,/end,/think,/research - Smart Search — Finds the right memory even if you describe it vaguely (5 sources, auto-ranked)
- Tool Integration — Your agent can search, save, and execute scripts on your behalf
- Safety Rails — Controls what the AI can and can’t do autonomously (4 levels, from read-only to full agency)
Compatible editors
Athena works through AI-enabled code editors — apps that connect to AI models while reading your local files.Claude Code
✅ Fully supported
Antigravity
✅ Fully supported
Cursor
✅ Fully supported
Gemini CLI
✅ Fully supported
VS Code + Copilot
✅ Fully supported
Kilo Code
✅ Fully supported
Use cases
Not just for coding. Athena is used for personal knowledge management, health tracking, creative writing, business strategy, and daily life — by people who’ve never written a line of code.| Use case | What it looks like |
|---|---|
| Life management | Daily routines, health tracking, pet care, family scheduling |
| Work & projects | Switch between multiple client projects without losing context. Meeting prep, cross-team knowledge. |
| Writing & voice | After 30 sessions, the AI stops sounding like ChatGPT and starts sounding like you. |
| Decision-making | ”Should I take this job offer?” — answered using your actual risk tolerance, career goals, and decision history. |
| Research & synthesis | Compile 200 sources into one framework — still searchable and citable 6 months later. |
| Strategic planning | Long-term planning across dozens of sessions with full context of your past decisions. |
Cost
Athena is free. Forever. MIT licensed. You only pay for the AI subscription you’re probably already paying for.| Plan | Cost | Who it’s for |
|---|---|---|
| Google Antigravity (free tier) | $0 | Try Athena first — included with any Google account |
| Claude Pro / Google AI Pro | ~$20/mo | Daily users — the sweet spot for most people |
| Claude Max / Google AI Ultra | $200+/mo | Power users managing multiple domains (8+ hrs/day) |
Next steps
Quick start
Get started in 5 minutes
Installation guide
Detailed setup instructions