Prompts & Credits
A prompt is a text instruction that guides an AI image generator to produce a specific style or subject. On prompt-market.jp every handcrafted prompt tuned for Japanese-style generation is published free and in full: copy it for your own model, or generate on-site.
Credits are the on-site currency. 1 credit = ¥1 (about $0.007 USD). You spend credits on on-site generation, dress-up and video. Top up on the Plans & Credits page — monthly plans are the best value.
Without signing in you can try a few generations per day on a lightweight model. Signed in, you generate with each prompt's target model; the credit cost depends on the model — GPT Image: 80cr, Nano Banana Pro: 60cr, Seedream / Grok Imagine: 40cr, others: 20–50cr.
No. Every prompt is free and its full text is public. You only pay credits (or a monthly plan) when you generate images or videos on-site.
We publish prompts for Seedream, Grok Imagine, GPT Image, Qwen Image Edit and Nano Banana Pro, plus FLUX, SDXL, Pony Diffusion, Illustrious, Animagine, NovelAI V4 and SD 1.5. The major models can be run on-site instantly. Each prompt card shows the target model.
Credits and monthly plans are generally non-refundable due to their digital nature. As an exception, a first credit-pack purchase is refunded in full within 14 days if not a single credit has been used (contact us). If a generation fails because of a fault on our side, the credits are refunded automatically.
Credits are valid for 180 days from the day they are granted. The oldest credits are spent first, and whatever is left of a grant after 180 days expires; the Plans & Credits page shows the next expiry. Credits are also forfeited 30 days after an account deletion request and in case of a serious breach of the Terms.
Sharing & Creators
Just an account and the submission form. No payout account or identity verification — prompts are published free.
No. prompt-market.jp is not a store for prompts but a community that shares them for free. Creators are rewarded through the generation royalty described below.
The moment another user generates with your prompt on-site, 5 credits are added to your balance. There is nothing to request or withdraw — spend them on your own generations right away.
Every time another user generates with your prompt on-site, you earn 5 credits automatically. The more your prompt is used, the more royalty accumulates.
Typically 24–72 hours. Prompts flagged clean by our automated scanner can be approved within a few hours. Prompts involving real people, minors, or suspicious copyright content will be rejected.
Japanese traditional clothing (kimono, miko, hakama), school uniforms, anime/cel-shading styles, and scenic settings (shrine, nature) get used the most. Prompts with detailed descriptions and 4+ high-quality sample images are generated far more often. GPT Image, Nano Banana Pro and Grok Imagine are trending on X right now, so prompts for these models are in strong demand.
Yes. While a prompt is still a draft you can open its image manager from the creator dashboard and generate additional sample images using credits (up to 8 total). We recommend adding at least 4 images before requesting review; prompts with more images are used far more often.
Currently each listing targets one model. If you have a prompt that works well with multiple models, we recommend listing them separately for maximum discoverability.
General & Safety
No. prompt-market.jp is SFW-only at launch. An NSFW zone using a separate payment processor may be added in the future, but it is not available now.
No. Prompts that identify or impersonate real individuals are prohibited by our Terms of Service. Both automated scanning and manual review enforce this. Violations result in account suspension.
The prompt text remains the intellectual property of the creator. Users may use prompts for personal or commercial purposes as specified on each prompt. Note that Japanese copyright law around AI-generated images is still evolving; see our Terms for details.
The site is fully available in Japanese, English and Traditional Chinese. Prompts themselves can be written in Japanese or English depending on the target model.
Use the Contact page. We handle credit and refund questions, DMCA/copyright takedowns, and account inquiries. Typical response time is within 2 business days.