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Credits & plans
Generating & follow-ups
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Common questions
What do I do when I run out of credits?
Buy a credit pack on the Plans page — it is a one-off purchase and those credits do not expire at the end of the month. Or subscribe to a plan, which grants a fresh allowance every month. Plan credits reset monthly; credits you bought do not.
What does follow-up refinement mean?
After an image is generated you can just describe what to change — "make the sky warmer", say. Nystrel remembers the previous frame and its context, so you never re-describe the whole scene. Paid plans allow up to 99 follow-up rounds per conversation; the free plan allows 5.
Do failed generations cost credits?
No. Whether it is a timeout, a content review block, or a queue wait — if nothing was generated, no credits are deducted.
Can I change the aspect ratio mid-conversation?
Yes, with “Extend the frame” under the image. Pick a new shape and Nystrel paints in the new edges around your picture — the original pixels stay exactly as they are, and the conversation continues in the new shape. Just typing “make it vertical” won’t change the shape; use the button.
How are my reference images used?
Reference images are used only for that generation, as a basis for the AI to edit or extend. Please make sure you have the rights to any image you upload — no copyrighted works belonging to others, and no images containing other people's likenesses.
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