This page describes how Unstability.ai subscription usage works. It is incorporated by reference into our Terms and Conditions. The specific numeric allowances for each plan are shown on your account page and on our pricing page.
Your subscription provides access to a wide range of AI models. Each generation draws from one of two usage pools, depending on how computationally expensive the underlying model is to run on our infrastructure: an Unlimited pool for everyday models and a Heavy pool for premium, compute-hungry ones. Which pool a generation uses can also depend on the settings you choose.
Standard generations, quick iterations, variations, and prompt-and-go work draw from your Unlimited pool. There is no fixed cap on this pool and these generations are never blocked, so you can keep creating as much as you like.
To keep this sustainable for everyone, very heavy sustained use may temporarily lower your generation priority (how quickly your requests move through the queue) rather than stopping you. See below.
Unlimited-pool generations run at one of three priority levels: High, Standard, or Low. Priority affects only queue speed, never whether you can generate. Most of the time you’ll be at High and won’t need to think about it. It is a live status calculated from several constantly-updating factors, including:
Priority is not an allowance you spend down. These factors recover on their own as load eases and your usage settles, and your priority fully resets at the start of each cycle.
Premium image models and anything compute-hungry (including high-fidelity edits, premium image generation, and other heavy renders) draw from your Heavy pool. Unlike the Unlimited pool, the Heavy pool has a fixed weekly limit and monthly cap so the slow, expensive work stays sustainable.
We assign each model, and where relevant specific settings, to either the Unlimited or Heavy pool based on its underlying compute cost on our backend. These assignments may change as new models are added, as existing models are tuned, or as our infrastructure changes.
The Heavy pool has both a weekly limit and a monthly cap (the Unlimited pool has neither):
The specific weekly and monthly amounts for each plan are shown in your account, on our pricing page, and in our help documentation.
The Unlimited pool has no cap, so nothing you do there counts against a limit. For Heavy-pool generations, the amount each one consumes depends on several factors, including:
We cache certain reusable content where possible to reduce the cost of repeated work.
If you reach the Heavy pool’s weekly or monthly limit, generations that draw from it will be paused until the next refill or until you upgrade your plan. Your Unlimited pool is unaffected: everyday generations are never blocked, so you can keep working there.
We may adjust usage allowances, pool composition, generation priority, model availability, pricing, and feature scope from time to time at our discretion. Price and plans are subject to change at Unstability.ai’s discretion. We will provide reasonable notice of any material reduction in usage allowances that affects current subscribers, for example by email or by an in-product notice.
We may also limit your usage in other ways, such as additional weekly or monthly caps, or model- or feature-specific restrictions, at our discretion, particularly to manage capacity during periods of unusually high demand or to address abusive use of the service.
New users may have access to a time-limited free trial or discounted introductory period. Trial allowances may differ from full-plan allowances and are described at the time of signup.
If you have questions about your plan, your usage, or how the pool system works, please contact us at support@unstability.ai.