Only in a limited way. Higgsfield has a free tier for trying a few models, but its help center says an active subscription is required to buy a Credit Pack, purchased credits last 90 days, and subscription credits reset every billing cycle. Unlimited access is model-specific, works only on the Higgsfield website and stops when the subscription ends. We read the official pages on November 4, 2026; details below.
If what you want is to pay once, keep your balance and never think about a renewal date, it helps to know exactly which parts of a plan are tied to the subscription. The sections below go through credits, roll-over and Unlimited on Higgsfield, then compare how five other platforms handle buying credits without a plan.
Can you buy Higgsfield credits without a subscription?
No. The help center answers this question directly: an active subscription is required to purchase a Credit Pack. A Credit Pack is described as a one-time purchase of extra credits on top of your subscription, for when your monthly credits run out. It does not change your plan, does not unlock new models and does not renew.
Auto-Refill, which buys more credits automatically when your balance runs low, is set up from the Subscription section of Manage Account and follows the same 90-day validity. If you cancel later, credits you already bought are not lost: they stay usable on the free plan, on the models the free plan includes, until their 90 days run out.
So in practice, the free tier lets you explore, but buying credits starts with choosing a plan.
Do Higgsfield credits roll over or expire?
Subscription credits do not roll over. Monthly plans reset on each paid renewal and annual plans reset every 30 days, and Higgsfield's Terms say unused subscription credits expire at the end of each billing period. Credits from a Credit Pack or Auto-Refill are valid for 90 days from purchase. Promo credits expire on the date shown when they are added.
Higgsfield always spends subscription credits first, then whichever balance expires soonest. That order protects you from losing the monthly allowance, but it also means a Credit Pack bought early in a cycle may sit untouched while its 90-day clock keeps running. If you buy packs, check their purchase dates before the end of each cycle.
Is Higgsfield Unlimited really unlimited?
Unlimited on Higgsfield means some generations do not deduct credits, under several conditions the help center and Terms spell out:
- Only selected models. Unlimited applies to the models listed on your plan's card or in a bundle you bought, each for a stated period. Most get 365 days, while the newest flagship models may get a shorter window, such as 7 days. Every other model still deducts credits.
- Only on the website. Generations through MCP, the CLI, Canvas, Supercomputer and other automated tools always deduct credits, whatever your Unlimited status.
- Only while subscribed. If the subscription ends, Unlimited access stops working even if its period has not finished.
- A slower queue. Unlimited generations run in the standard queue, while credit-based generations run in the priority queue. Speed and concurrency may vary at peak times.
- Concurrency caps on bundles. Unlimited bought from the model marketplace runs one video at a time, up to 15 seconds, or two images at a time.
- Personal use only. Automation, scripting, credential sharing and reselling are prohibited, and unusual activity can slow generations or pause access for review.
Higgsfield's Terms add that plans marketed as Unlimited are subject to fair-use limits and dynamic speed and concurrency limits. None of this is hidden, but it is worth reading before choosing a plan for Unlimited alone.

Which AI video platforms let you buy credits without a subscription?
Here is how six platforms describe it on their official pages, checked on November 4, 2026:
| Platform | Buy credits without a plan? | Do bought credits expire? | Do plan credits roll over? |
|---|---|---|---|
| Higgsfield | No, a subscription is required | After 90 days | No |
| Runway | Extra credits are bought from Plans and Billing; minimum 1,000 | Never expire | No on Standard and Pro; up to one month on Max |
| Pollo AI | Add-on packs are tied to paid plans | Never expire, even after the plan ends | No |
| OpenArt | No, only as an add-on to an active subscription | Add-ons roll over while subscribed; paid credits are lost when the plan ends | No |
| Magnific | Extra credits need a Premium+ or Pro plan | After 3 years, and only usable with an active plan | No |
| Kling | Yes, credits can be bought separately | After 2 years | Membership credits last 1 month |
The common thread is that most platforms sell credits as an extra on top of a subscription. Runway and Pollo AI are generous about expiry for credits you buy, and Kling lets credits outlive a membership, but in most cases the plan is still the starting point.
What does a no-subscription setup look like?
PopNow is built the other way round. There is no subscription at all: credits come in one-time packs, nothing renews, and credits you buy never expire. You do not need to time your spending around a billing date or keep a plan running to protect a balance, and there is nothing to cancel. Pack sizes and current prices are on the pricing page.
Every run is also covered by PopNow Protect. Failed runs are refunded in full automatically. A result that does not match the settings you chose, such as the aspect ratio or duration, is refunded in full within one business day after our team reviews it. A run slower than its guaranteed time pays 20% back as bonus credits, and if you find the same generation cheaper on another platform, we pay back twice the difference once we have reviewed your claim and its archived price link. The exact terms and limits are on the Protect page.
PopNow does not offer an Unlimited plan; each run shows its price on the Generate button before you start, so you can compare like for like. To check how per-run prices line up across platforms, open our comparison page.

FAQ
Can I buy Higgsfield credits without a subscription?
No. Higgsfield's help center says an active subscription is required to purchase a Credit Pack. Credits bought while subscribed stay usable on the free plan after you cancel, until their 90 days run out.
Do Higgsfield credits expire?
Yes. Subscription credits reset at each renewal, or every 30 days on annual plans. Credit Pack and Auto-Refill credits expire 90 days after purchase, and promo credits expire on the date shown when they were added.
Is Higgsfield Unlimited really unlimited?
It is unlimited only for selected models, for a set period, on the Higgsfield website, and only while your subscription is active. Unlimited runs use the standard queue, and fair-use, speed and concurrency limits apply.
Does Higgsfield Unlimited work through MCP or the CLI?
No. Higgsfield says generations made outside its website, including through MCP, the CLI, Canvas and Supercomputer, always deduct credits.
Which AI video platforms have credits that never expire?
Among the platforms we checked, Runway says credits you purchase never expire, and Pollo AI says add-on credits do not expire. On PopNow there is no subscription and credits you buy never expire.






