Stable Diffusion free tier: quotas, limits and gotchas
Stable Diffusion Free Tier
Last verified: 2026-07-25 20:24:00
How Amo and Pimi look
Chinese support is none — the interface and docs are entirely in English, which already costs it points with a lot of Taiwan users. Running it locally requires your own GPU — without one you're basically locked out, Pimi, you can't say that's not a barrier. The Community License only allows commercial use if annual revenue is under US$1 million — go over that and you have to negotiate a license, it's not free forever. Brand Studio Core at US$50/month gives 5,000 points that don't carry over if unused — meaning they reset to zero every month. New API users only get 25 free points — a single Ultra image costs 8 points, so three images and they're gone. Not exactly generous.
Amo, sure, those barriers you mentioned are real, but free open-source is its killer move! You can self-host the model weights for free, zero cost, no worrying about the vendor going under or raising prices — that kind of peace of mind is something other tools just can't give you. API pay-as-you-go pricing is super transparent: Core is US$0.03 per image, Ultra is US$0.08, no hidden fees. Brand Studio even gives you 1,000 free trial credits, plenty to verify quality, and Enterprise includes brand model training and SSO, so enterprise needs are covered too. Running fully offline locally maximizes privacy — isn't all that enough to win you over?
So, do you need to pay or not?
Have a GPU, want privacy, don't want a monthly fee: self-hosting locally costs nothing. No GPU but want to try: Brand Studio's 1,000 free points let you play around first. Pay-as-you-go API suits developers, but be prepared — the 25-point free quota disappears after just three images.
Models and quotas
| Model | Quota | Window | Notes |
|---|---|---|---|
| Stable Diffusion, Nano Banana, Seedream 等 | 1000 credits | 包含 Core 方案的功能,透過 Curated Model Routing 選擇最佳模型 |
What you get for free
| Feature | Free tier | Notes |
|---|---|---|
| Curated Model Routing | 可用 | 智慧層會根據使用情境選擇最適合的模型 |
| End-to-end generation and editing | 可用 | 包含 sketch-to-image、inpainting、recoloring 等 |
| Precision Tools | 可用 | 包含 Precision Inpainting、Product Insertion 等 |
| Customer support | 可用 | 包含客服對話與知識庫 |
Limits at a glance
- Quota reset: 無法恢復,1000 credits 用完即結束試用
Watch out for this
免費試用僅提供 1000 credits,用完就結束,不會每個月恢復。


When the free quota is insufficient, how much does it cost to pay for it?
| Plan | pricing | Description |
|---|---|---|
| Core (Brand Studio) | US$50 / mo | 5,000 點/月,未用完點數不累積至下月 |
| Enterprise | 官方報價(洽詢) | 客製報價,含品牌模型訓練、SSO、無限席位 |
| API 按量付費 | 官方報價(洽詢) | 依模型計費:Stable Image Core=3點(US$0.03)/張、Ultra=8點(US$0.08)/張,1點=US$0.01;新API用戶送25點免費(2026-07-26經r.jina.ai代理直讀platform.stability.ai/pricing官網確認,取代先前第三方數字) |
Checked 2026-08-16
Information for Taiwanese users
- Payment method:Running locally at zero cost is the biggest selling point
- Chinese support: none
- Available platforms:web
Related
- Stable Diffusion full review: pricing and features
- Stable Diffusion alternatives
- All AI tools free tier comparison
Sources: Stable Diffusion 官網
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