I
100% local and private
Your prompts, files and conversations never leave your computer. No cloud, no data collection, no third parties reading your data.
ULTRA isn't one more chat window — and it isn't one more agent renting a single brain from the cloud. It runs two of its own: one that sees, one that acts. Vision reads your screens, photos and documents; the Brain reasons, plans and uses tools. Open it once and it does the rest: scans your hardware, curates the models and skills that fit your machine, and gets to work — private, offline, unlimited, and completely free. The power of a data center, with no leash, answering only to you.
What makes ULTRA different
Built to run on you
No server queues, no paying per token, no fiddling with configs. Everything happens on your machine, curated for you, from the first click.
II
Matched to your hardware
ULTRA scans your GPU, VRAM and memory the moment you open it, then recommends the models that actually run well on your rig. No guessing, no freezing, no other app looks this closely at you.
III
~500 models, hand-picked
A curated catalog uniting HuggingFace and Ollama — not a raw dump of everything that exists. Download with an honest progress bar and get going, no terminal required.
IV
Brain + Vision
One sees, the other acts. Vision reads screenshots, photos and documents; the Brain reasons and uses tools. Two specialists, one agent — paired locally like nobody else.
V
Acts, doesn't just answer
With tool use, ULTRA runs real tasks — it doesn't just describe what it would do. An assistant that works, not just talks.
VI
Plug-and-play, your disk in control
Ollama comes built in — nothing to install separately, nothing to compile. Install and uninstall models in one click and free up space instantly.
VII
Skills, curated — not dumped on you
No wall of a thousand half-working scripts. ULTRA curates real skills by category, marks the best with a gold seal, and only recommends what actually fits your model and your machine.
VIII
Onboarding no other app offers
Most local-AI tools hand you a README and a command line. ULTRA hands you a wizard: it reads your hardware, downloads the right models and skills, and drops you into a working chat in minutes — no config files, no forum threads at 2am.
From zero to your first chat
How it works
I
Download and open — that's it
One installer, one click. Genuinely plug-and-play: no server setup, no command line, no headache.
II
It reads your machine
ULTRA detects your hardware and suggests the ideal models and skills for it. You approve, it downloads everything for you.
III
Chat and get to work
Chat, images, tasks and skills — all offline, unlimited, at your GPU's speed.
Why run it locally
0
in the cloud
Your data stays with you
$0
per token
Use it freely, no bill coming
∞
no limits
No daily quota or queue
✈
offline
Works even with no internet
Full transparency
Your antivirus might complain. Here's why.
ULTRA is safe — but as new software from a small, independent developer, it doesn't carry the paid certificate that tells Windows and antivirus engines "this publisher is well-known." That's a reputation problem, not a security one.
Runs 100% local
ULTRA never phones home. No telemetry, no background uploads — there's nothing here for an antivirus to catch, because nothing ever leaves your machine.
Public, verifiable builds
Every release is published in the open on GitHub, with full history and checksums. Nothing hidden, nothing swapped after the fact.
New app, not new risk
Windows SmartScreen and antivirus heuristics flag any small, unsigned publisher by default — it's an automatic reputation check, not a scan result on the file itself.
If Windows or your antivirus blocks the install: click More info → Run anyway (SmartScreen), or restore the file from quarantine / add an exception in your antivirus. It's safe — and as more people run ULTRA, these warnings naturally disappear.
Two brains. No leash.
Bring your sovereign agent home
Download ULTRA and in minutes you'll have a two-brain AI agent — one that sees, one that acts — set up, matched to your hardware, and stocked with the right models and skills. Completely free.
Download ULTRAWindows · Free · No credit card