quietmoneySousaku
Japanese AI creation platform aggregating models such as GPT Image, Seedance, Nano Banana, Kling and Midjourney to generate images, video, music, characters and short dramas, plus themed creation contests.
Launched last monthOne-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout visits over time
Checkout: checkout.stripe.com
1. Productwhat it sells, to whom, and how it charges
- Product
- Japanese AI creation platform aggregating models such as GPT Image, Seedance, Nano Banana, Kling and Midjourney to generate images, video, music, characters and short dramas, plus themed creation contests.
- Users
- Japanese AI art/video enthusiasts and content creators (including some NSFW demand)
- Positioning
- Japanese-localized multi-model aggregator; fast to add new models, with contests and a showcase gallery for community
- Pricing
- Free ¥0/month; Standard ¥1,036/month (¥12,432/year); Premium ¥3,108/month (¥37,296/year); Ultimate ¥9,324/month (¥111,888/year); credits can also be bought at roughly ¥0.62–0.69 per credit Billing: mixed Free tier: yes Source: Available
- Prices on site
- ¥0.6907/クレジット (Standard); ¥0.6216/クレジット (Premium/Ultimate) (mixed)
- Acquisition entry points on site
- Discord community
- Sharing mechanics
- branded free output, public profiles / leaderboards Themed contests with entry counts and '今すぐ応募する' buttons; 'インスピレーション' showcase; generator has '透かし' (watermark) setting; contest prizes '500クレジット'
- Price source
- sousaku.ai
“Themed contests with entry counts and '今すぐ応募する' buttons; 'インスピレーション' showcase; generator has '透かし' (watermark) setting; contest prizes '500クレジット'”Quote from the site
2. Channelswhere new users come from and what the traffic looks like
New-user source: Viral (Built-in sharing). Direct 71.5%, referrals 21.4% (1link.jp, note.com, stripe.com), brand keywords 74.1%, search terms include hotgen v5 and sousaku ai nsfw. Input classified as Viral: free output carries a branded watermark, public showcase and rankings, social sources include X, YouTube and Discord. Returning users come back via subscription credits and contest events.
Last month's traffic sources
Top channel measured by Similarweb, others estimated by rank
Five-class attribution
| Attributable new users, last month | Share |
|---|---|
| SEO | 2% |
| 74% | |
| Other | 24% |
Direct + brand search 74%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
Countries
| Country | Share of visits |
|---|---|
| Japan | 91.53% |
| Ecuador | 1.47% |
| United States | 1.35% |
| Vietnam | 0.83% |
| Korea, Republic of | 0.73% |
Language
Mainly Japanese, also English/Spanish/Korean/Simplified and Traditional Chinese
Social sources
X (Twitter), YouTube, Discord; Messaging: Discord
Keywords
251 keywords · brand ~74% · organic 100% / paid 0%
| Similarweb top 5 keywords |
|---|
| sousakuai |
| sousaku ai |
| hotgen v5 |
| sousaku ai nsfw |
| hotgen video v5 |
Non-brand queries: hotgen v5, hotgen video v5
Referring sites
9 referring sites
| Site | Share of referrals |
|---|---|
| 1link.jp | 3.33% |
| note.com | 2.42% |
| stripe.com | 2.03% |
Referrer categories
| Category | Share of referrals |
|---|---|
| Adult | 50.57% |
| Marketing and Advertising | 12.13% |
| Programming and Developer Software | 10.74% |
| Computers Electronics and Technology - Other | 4.46% |
| Graphics Multimedia and Web Design | 3.33% |
Site metrics (Similarweb, last month)
- Visits, last 3 months
- 150.3K (3 months)
- Visits MoM
- +33.21%
- Country rank
- Japan #11648
- Category rank
- Computers Electronics and Technology/Web Hosting and Domain Names #73
- Bounce rate
- 35.82%
- Pages / visit
- 10.10
- Visit duration
- 00:11:36
- Industry
- Web Hosting and Domain Names
- Top 3 channels
- Direct › Referrals › Organic Search (top channel 71.52%)
3. Growth pathhow the first users arrived and what kept it growing
Classification
Basics
Timeline
Growth loop
Revenue and scale clues
Confidence and gaps
Other sites that started via “Piggyback on a platform”
Similar sitessame category, also growing via Viral
FAQ
How many checkout visits does Sousaku get per month?
About 17,192 last month (Similarweb estimate), #157 of 606; the month before was 414. Opening checkout is not paying, so this is not revenue.
Where do Sousaku's new users come from?
New-user source: Viral (Built-in sharing). The site has invite or share mechanics, and direct plus brand search is the largest source Direct 71.5%, referrals 21.4% (1link.jp, note.com, stripe.com), brand keywords 74.1%, search terms include hotgen v5 and sousaku ai nsfw. Input classified as Viral: free output carries a branded watermark, public showcase and rankings, social sources include X, YouTube and Discord. Returning users come back via subscription credits and contest events.
How much does Sousaku cost?
Free ¥0/month; Standard ¥1,036/month (¥12,432/year); Premium ¥3,108/month (¥37,296/year); Ultimate ¥9,324/month (¥111,888/year); credits can also be bought at roughly ¥0.62–0.69 per credit
Dossier confidence: high. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The number: checkout visits is Similarweb's estimate of visits from the site to a checkout payment page; opening checkout is not paying, so this is not revenue. Small sites land on fixed buckets.
Data through last month. Page updated 2026-10-26.