How does the credit system work?

Credits are PicX Studio's generation currency. What a generation costs depends on the model and the output resolution — as a guide, a 1K image is 20 credits on Nano Banana 2 Lite and 35 on Nano Banana 2, a 2K image is 53 on Nano Banana Pro, and 4K and video cost more. Live per-model pricing is always shown before you generate, so rely on that rather than a figure quoted here. Credits are deducted when the generation starts. If a generation fails, the credits are returned to your balance automatically, usually within minutes. Your balance and transactions are in Settings. Credits never expire. Plans and packs are on pricing.