Skip to main content
The Carat AI agent reads your request and chooses its own tools to carry it out, so it can sometimes miss a note saved in memory or decide on its own to try a different feature.

​
First check your credit balance and which screen you are using

When your credits run out, you cannot use an agent conversation. Choosing a model inside a chat still requires separate conversation credits. Unlimited benefits cover generation costs for eligible models and options, not the agent’s conversation costs. If you have enough conversation credits, eligible generation in the agent can still use your unlimited benefit. The generator is the way to keep generating without a conversation when your credits are zero. To generate images or videos with models and options included in your account’s unlimited benefits, open the Generator(생성기). On the web, use [Generator(생성기)] in the left sidebar (open the top-left ☰ on mobile web); in the app, go to [Home(홈)] → top-left menu (☰) → [Generator(생성기)] (app version 2.281.0 or later). The generator uses no conversation credits, but accounts without the benefit and models or options outside its coverage still require credits.

​
Why the AI declines an unlimited feature

When the AI says it “can’t use” or declines an unlimited generation feature (for example Nano Banana, Nano Banana Pro, Z-Image, or Carat video generation), there are usually three causes.
When the basic Nano Banana model is the one covered by the unlimited benefit, the AI may see only the name “Nano Banana” and try to call the higher-end Nano Banana Pro model instead of the basic one. Pro is not covered by the unlimited benefit, so the request can stop when there is no remaining usage.
Generating with an image model and options covered by your account’s unlimited benefit does not use credits. However, to handle your request well or to get a better result, the AI may try to add a paid tool such as background removal or image analysis. If there is no remaining usage for that paid step, the AI may give up on the task or reply that it can’t proceed.
If the AI agent is not aware of an active promotion, it may rely on its default knowledge and reply, incorrectly, that the feature has a usage limit or that you don’t have enough usage (a hallucination), even when the unlimited benefit is actually applied to your account.

​
If you have enough conversation credits but the AI declines

If you have enough conversation credits and the model and options are included in your account’s unlimited benefits, but the AI says it cannot use them, try a new chat and name the model explicitly as shown below. With zero credits, a new chat or another prompt will not solve the credit restriction; use the generator instead.

​
Example prompts

​
If the problem continues

If the AI keeps declining even after you ask explicitly, tap […] or [Share(공유하기)] at the top right of that chat and send the link to help@carat.im. Our technical team will check the actual logs and help you.

Scope of the unlimited benefit

What the Nano Banana Pro/basic unlimited benefit covers

Usage is deducted even though it's unlimited

Usage deduction questions for the unlimited promotion