TangyuanAI is a design agent. You describe the work in chat, it plans the set, and it generates the visuals: brand kits, campaign sets, social imagery, listing shots and short video. The site is tangyuanai.vip. Billing runs on credits rather than seats, and the conversation with the agent is free.
We build it, so treat this as a product description rather than an assessment. The useful part of a page written by the vendor is the checkable detail, so the numbers below come straight off our own pricing page, read on August 26, 2026, and they move.
The part that surprises people first
Planning, inspiration lookups and multi-turn revisions cost 0 credits. You only spend when an image is produced. That is unusual enough in this category that it is worth stating plainly: talking to the agent about what you want, changing your mind three times and asking it to restructure the set are all unbilled.
The practical consequence is that the expensive mistake in most credit-based products, iterating your way to clarity, is the cheap part here. What you pay for is the final render.
What a pack buys
One-time credit packs, all in USD, all with credits that do not expire.
| Pack | Price | Credits | Approximate standard images | Published model rates at this tier |
|---|---|---|---|---|
| Starter | $19 | 1,800 | 900 | GPT Image 2 at $0.009 an image, Nano Banana 2 at $0.047, Seedance 2.0 at $0.047 a second |
| Basic | $32 | 3,200 | 1,600 | GPT Image 2 at $0.009 an image, Seedance 2.0 at $0.045 a second |
| Pro | $90 | 10,000 | 5,000 | GPT Image 2 at $0.007 an image, Seedance 2.0 at $0.035 a second |
| Ultimate | $199 | 15,000 | 7,500 | GPT Image 2 at $0.006 an image, Seedance 2.0 at $0.031 a second |
Two figures in that table describe different things and it is worth separating them. The credits column is what you buy. The right-hand column is the published unit rate for individual models at that tier, which is what decides how far a fixed number of credits actually goes for your particular work. A set built around video seconds and a set built around standard stills consume the same balance at very different speeds. Check which models your work uses before comparing pack sizes.
A standard image runs about 2 credits at every tier, which is where the approximate image counts come from. There is also a limited-time daily check-in granting 30 credits, roughly 15 standard images, for people who want to test before buying anything.
What a one-time pack does not include
Packs are deliberately not subscriptions, and the page says so. Concurrency, the Relax lane and brand kits are subscription perks and do not come with a top-up. Subscription plans exist alongside the packs, quarterly and annual, plus an enterprise and team option.
Commercial licensing is included with the packs, covering every image and video model and the editing features. Whether your finished piece is separately registrable is a different question, governed by copyright offices rather than by us; the US position on works involving generative systems is published at https://www.copyright.gov/ai/ and is worth reading once if you plan to register anything.
Payment settlement splits by channel. Card payments through Stripe settle in USD, while direct Alipay and WeChat Pay settle in CNY, so the amount your bank shows depends on which route you took.
Where it fits, and where it does not
It fits the case where one person owns the visual output for a store or an account and the work arrives weekly rather than as a single campaign. A brief goes in, a consistent set comes out, and the revisions happen in conversation instead of in a queue with a designer.
It fits less well when the deliverable has to match an established design system component for component, or when the value sits in art direction rather than production. A generated set holds a consistent style; it does not replace someone deciding what the style should be.
How to check it in twenty minutes
Use the free conversation to plan a set you actually need, not a demo idea. Then spend credits once and look at three things. Does the set hold together across every piece, not just the first one. Can you change a single element without regenerating everything. Does the model you were routed to match the rate you expected on the pricing page.
The third question is the one people skip, and it is the one that decides what a pack really costs you.
Written by the TangyuanAI team. Prices, credit allowances, model rates and settlement terms read from https://tangyuanai.vip/en/pricing on August 26, 2026. Pricing pages in this category change often; check the current page before budgeting against these figures.
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