Free credit
Get $0.1 of free AI image credit with Google sign-in
New YingTu users get $0.1 of free AI image credit just for signing in with Google. A personal test key is created and saved in your browser automatically, with no credit card and no other sign-up. Spend it on Nano Banana 2, Nano Banana Pro, GPT Image 2 VIP or GPT Image 2.5, which works out to about 1-4 images depending on the model. The offer is limited to the first 500 new users, lasts 30 days, and does not cover video models.
The credit arrives right after sign-in. If you already saved your own key, nothing changes.
Claim it in three steps
- 01
Open the image studio
Go to the YingTu home page and click “Sign in with Google” in the top right.
- 02
Your credit arrives
Within seconds the $0.1 credit is active and your key fills the “Images & text” slot. A notice confirms it.
- 03
Start generating
Write a prompt or pick a template, choose a model and click Generate. Each image is billed on its own; check your balance any time under “API Key”.
How many images does $0.1 buy?
| Model | Price / image | ≈ images with $0.1 |
|---|---|---|
| Nano Banana 2 Lite | $0.025 | 4 |
| GPT Image 2 VIP / 2.5 Flare / 2.5 Sunburst | $0.03 | 3 |
| Nano Banana 2 | $0.055 | 1 |
| Nano Banana Pro | $0.09 | 1 |
Based on current LaoZhang prices. One-click prompt optimization uses gemini-2.5-flash-lite at about $0.0001 per run. Video models (Seedance, Wan) are not covered.
When the credit runs out
Sign up at laozhang.ai with Gmail and the new account gets another $0.1 of test credit. Top-ups, billing and invoices then happen on laozhang.ai; YingTu only stores and uses your key.
- 1Create a laozhang.ai account with Gmail
- 2On the Tokens page, create a default-group “pay-as-you-go first” key and copy it
- 3Back on YingTu, open “API Key” in the top right and paste it into “Images & text”
The fine print
- One claim per Google account: $0.1, valid for 30 days.
- 500 grants in total, while they last.
- Image generation and prompt optimization only. No video or other models.
- Returning users who already saved their own key keep it.
FAQ
Do I need a credit card?
No. Sign in to YingTu with Google and the credit is issued to your browser automatically.
How many images does $0.1 cover?
It depends on the model: about 4 with Nano Banana 2 Lite, 3 with GPT Image 2 VIP or GPT Image 2.5, and 1 with Nano Banana 2 or Nano Banana Pro.
Can I make videos with the free credit?
No. Seedance 2.0 / 2.5 and Wan 2.7 need your own group key from laozhang.ai and are billed by usage.
What happens when it runs out?
Sign up at laozhang.ai for another $0.1, paste the new key into YingTu under “API Key”, and top up on laozhang.ai when you need more.
Is my key safe?
Your key stays in your browser and goes straight to the LaoZhang API when you generate. YingTu servers do not store it, and the grant endpoint never exposes any management credentials.
Can I use it on another computer?
Yes. Sign in with the same Google account and you get the same free key back, as long as it still has balance and has not expired.
Rules and prices updated 2026-09-25