Technology
Introducing OpenFatigue
Key Points
Open-ish Licensing Our license is open for anyone to read. Using, modifying, or distributing the software is a separate conversation with Legal. Introducing OpenFatigue™ OpenChamber.
Open-ish Licensing
Our license is open for anyone to read. Using, modifying, or distributing the software is a separate conversation with Legal.
Introducing OpenFatigue™
OpenChamber. OpenAI. Open WebUI. OpenDoor. OpenTable. OpenClaw. Open weights. Open this. Open that. The word has been opened so many times it no longer closes. OpenFatigue™ is the first fully Open-branded platform for people who are exhausted by fully Open-branded platforms.
*Free as in “free trial.” Not free as in freedom. Not free as in beer. Free as in “we'll email you.”
Logos withheld to remain open about our closed relationship with trademark law. None of these companies endorse us. Most have never heard of us. That's fine. We're tired.
Features
Our license is open for anyone to read. Using, modifying, or distributing the software is a separate conversation with Legal.
Download our model weights after agreeing to a 41-page acceptable use policy, a monthly-active-user cap, and a vibe check.
We publish a high-resolution screenshot of our source code every quarter. Pull requests may be submitted by fax.
Built by a vibrant community of one (1) maintainer, currently on sabbatical. Enterprise Edition includes the other features.
Our door is always open. The building is badge-access only. The badge reader is closed source.
Our roadmap is completely public, entirely aspirational, and subject to change by a non-profit board that may or may not exist next week.
The Openness Meter™
Drag the slider to calibrate your openness to industry standards.
Open Name Generator™
Every great company starts with “Open” and a noun. We automated the noun.
OpenFatigue
Is It Open?™
Enter any product. Our closed-source model will tell you how open it is.
Pricing
$0/mo*
Most Open
$49/mo/seat/token/vibe
Contact Sales
† Pricing is open to interpretation. * Excludes inference, storage, egress, ingress, regress, tokens, the tokens used to count tokens, and vibes.
Testimonials
Symptoms
Consult your nearest four-freedoms practitioner if symptoms persist for more than one funding cycle.
This is the most common early symptom. Your brain has learned that “open” now precedes words like “waitlist,” “API key,” and “enterprise tier.” This is a healthy defense mechanism.
Congratulations — you are developing immunity. Look for phrases like “acceptable use,” “non-commercial,” “field of use,” and “we reserve the right.” None of those are open source. Real open source licenses let you use, study, modify, and share — for any purpose.
Neither can we. One of them sells houses, one books dinner, one serves models, one is a chamber, one is a claw. We stopped asking. Please do not open the claw.
Weights without training data, training code, or a permissive license are a binary you're allowed to download. It's nice! It's just… a binary you're allowed to download.
The term has a specific, published definition from the Open Source Initiative, and there's also an Open Source AI Definition. Supporting projects that meet them is the only known cure for OpenFatigue.
Join 8,412,903 people who have clicked a button labeled “Open” and found a form.
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