Credit-based and subscription pricing are both recurring — you pay on a cycle either way — but the unit each charges for is different. Credit-based tools (Pose, ProductScope) sell you a pool of credits that each generation draws from; subscription tools (Synthesia, Captions) sell you a plan tier with a fixed monthly allowance or feature set, often with a limited free tier to evaluate first.
Neither model is objectively cheaper — which one costs less depends on how much you generate and how predictable you want the bill to be.
- Credit-based pricing (Pose, ProductScope): you get a pool of credits on a cycle — weekly for Pose, monthly for ProductScope — and each generation spends some of it. The pool resets on its cycle; it doesn't roll over indefinitely.
- Subscription pricing (Synthesia, Captions): you pay for a plan tier that unlocks a fixed monthly allowance (often measured in minutes or seats) or a specific feature set — higher tiers add capability, not just more of the same.
- Credit-based isn't the same as pay-as-you-go — you're still paying on a recurring cycle for a fixed pool, not paying per generation with no cap.
- Which is cheaper depends on usage: light, occasional use often fits a subscription's free or entry tier; regular, multi-format use tends to fit a credit pool better, since it doesn't require jumping to a higher feature tier just to unlock capacity.
Key terms
Credit-based pricing means you're billed for a pool of credits on a recurring cycle, and each generation — an image, a video clip, a headshot — deducts some number of credits from that pool depending on what it costs to produce. Pose's pool refreshes weekly (400 credits, $4.99 the first week then $14.99/week); ProductScope's refreshes monthly (around 1,000 credits advertised, though some users report the actual usable allocation running lower than that — worth checking current terms before committing).
Subscription pricing means you're billed a flat fee for a plan tier, and that tier defines what you get — a number of minutes, a feature set, or both — rather than a spendable pool. Synthesia's free tier caps you at 10 video minutes a month as an evaluation tier, with the Creator plan ($59/month) raising that to roughly 30 minutes; Captions' free plan has no AI generation credits at all (auto-captioning only), and AI actors or text-to-video require the Max tier ($24.99/month) or above.
Credit-based vs subscription: pros and cons
| Credit-based (Pose, ProductScope) | Subscription (Synthesia, Captions) | |
|---|---|---|
| Pro | One pool covers whatever you generate — no separate tier to unlock a format you already have credits for | Predictable flat cost, easy to budget month to month |
| Pro | Scales down naturally in a light week without switching plans | Free or low tiers exist to evaluate before paying |
| Con | Heavy use can exhaust the pool before the cycle resets | Higher-value features (like AI actors) often gated behind a pricier tier, not just more usage |
| Con | Monthly-cycle credit pools (like ProductScope's) can see real-world usable allocation drift from the advertised figure — verify current terms | Paying for a tier's full feature set even if you only use one part of it |
Figures current as of August 2026 and subject to change — verify each provider's current plan before subscribing.
See the full six-tool breakdown in AI Creative Studio Pricing Comparison 2026.