Aletha Codex
The assistant layer for your local models
Rented intelligence can be throttled. Yours can't.
You already run your own models — free, local, yours. Aletha is the assistant around them: memory that survives a model swap, voice, a calendar, and an encrypted vault. Bought once. On your Mac. No account, no rate limits, no one deciding you've used it enough today.
$100 $50 · founding price through August 6 · one time
Mac · works with your open-source local LLMs, or the one built in · 14-day guarantee
What you're actually paying for
You didn't buy intelligence. You rented it — and they just cut the limits.
Usage caps tightened. The good model moved to a higher tier. "You've reached your limit, try again later." Every cloud AI is a meter someone else controls — and they've started turning it down mid-task, at the exact moment you needed it. The model on your own machine doesn't have a meter.
The part you already own
You own the hard part. You've just been renting the assistant.
The open models you run are as capable as they've ever been, and they're yours — no login, no cap, no shutoff. What you've been missing is the assistant around them. Aletha is that layer: it wraps the models you already run and adds the memory, voice, and presence that make an assistant feel like yours — bought once, and never rented again.
Memory that survives a model swap
Your memory is indexed by its own model, separate from the chat model — swap your 8B for a 32B and your context, profile, and history don't move. The one thing a raw model runner can't do.
A vault only you can open
Your passwords and private notes sit in an AES-256 vault, encrypted with a key derived from your passphrase and stored nowhere. It's secure storage — your secrets never reach the model, its output, or any log.
Talk to it out loud, or type in silence
A hands-free assistant wrapped around any open-source model you run: in conversation mode you speak and it answers out loud, a sentence at a time as they're ready. When you need quiet, switch to chat mode and type instead. The mic is live only while the window's open — no wake word, and nothing is streamed anywhere.
Reminders that reach you over fullscreen, a calendar you talk to, study tools — see exactly how each one works under the hood →
New to local AI?
You don't need to set anything up. Aletha comes with a capable model built in and works the moment you open it — one download, no config, no terminal.
Start here →Already running open-source local LLMs?
Point Aletha at the open-source local LLMs you already run and switch between them mid-conversation. Read-only — it never touches or modifies your models. See exactly how it all works.
Under the hood →Trust, verified
You don't have to trust us. You can check.
Aletha runs entirely on your Mac — no account, no telemetry, nothing transmitted. Run a network monitor and watch: nothing leaves. The models are open and yours. The one thing you're buying is the assistant layer on top — and it never phones home to take it back.
"I built Aletha so you could own your AI outright — real capability wrapped around models that are already yours, on hardware that's already yours. Owned by no one but you — and nothing you tell it ever leaves your machine, gets trained on, or is sold." — Roland, founder
Own vs. rent
Sovereignty, not a subscription.
Rented intelligence
- Metered every month, forever
- Throttled, capped, or cut off whenever they choose
- Your words processed on someone else's servers
- The good model keeps moving to a higher tier
- Needs an account, a login, a connection
Aletha Codex
- $50 once — never metered, never again
- Never throttled or cut off — there's no meter to turn down
- Runs on your Mac; nothing is sent to us
- Any local model — bring your own or use the built-in one
- No account. No login. Works with the Wi-Fi off.
You went local to stop renting the intelligence. Aletha is the same move for the assistant around it. Read the case for owning it →
Founding price: $50, through August 6.
Half off $100, one time — then it goes to full price. The assistant layer for the models you already run, on your Mac, yours for good.
Yours in under a minute. No account. No sign-up.
Get Aletha — $50, yours for good$100 $50 · founding price through August 6 · Mac · 14-day guarantee