Pay-as-you-go access to hundreds of AI models such as ChatGPT, Claude and Gemini in one interface, with chat history stored on your local device, plus an OpenAI-compatible API.
Milan de Reede,One-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout: checkout.stripe.com
“Pay as you go and stay private; pricing nav has an 'Invitations' section but no reward details shown”Quote from the site
New-user source: Other (Direct / referral / email / paid). Direct 80.2%, search 18.4% (brand keywords 98.6%: nanogpt, nanogpt subscription), social 1.4% (Reddit first). Referrals adsy.com 2.42%, techjournal.org 1.78%, dcinside.com 1.34%; AI referral ChatGPT 0.09%, opencode.ai 0.07%. New users are classed as other.
Semrush source breakdown (desktop)
| Attributable new users, last month | Share |
|---|---|
| 1% | |
| Other | 99% |
Direct + brand search 99%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| United States | 40.33% |
| Germany | 10.24% |
| Japan | 3.85% |
| Vietnam | 3.83% |
| Netherlands | 3.31% |
Countries (Semrush): United States 47.6%, Hungary 5.5%, India 4.5%, Italy 3.6%, Bangladesh 3.3%
English
Reddit, YouTube, X (Twitter)
| Source | Share |
|---|---|
| ChatGPT | 0.09 |
| opencode.ai | 0.07 |
| Gemini | 0.04 |
AI referrals (Semrush): ChatGPT 675 (0.09%), opencode.ai 560 (0.07%), Gemini 305 (0.04%), openrouter.ai 215 (0.03%), Claude 131 (0.02%)
629 keywords · brand ~99% · organic 100% / paid 0%
| Similarweb top 5 keywords |
|---|
| nanogpt |
| nano gpt |
| nanogpt subscription |
| nano-gpt |
| nanogp |
20 referring sites
| Site | Share of referrals |
|---|---|
| adsy.com | 2.42% |
| techjournal.org | 1.78% |
| dcinside.com | 1.34% |
| Category | Share of referrals |
|---|---|
| Computers Electronics and Technology - Other | 15.83% |
| Video Games Consoles and Accessories | 4.62% |
| Programming and Developer Software | 2.62% |
| Digital Marketing | 2.42% |
| Marketing and Advertising | 1.78% |
About 64,470 last month (Similarweb estimate), #28 of 606; the month before was 32,363. Opening checkout is not paying, so this is not revenue.
New-user source: Other (Direct / referral / email / paid). Mostly referrals, email or paid, or mostly direct with no clear source Direct 80.2%, search 18.4% (brand keywords 98.6%: nanogpt, nanogpt subscription), social 1.4% (Reddit first). Referrals adsy.com 2.42%, techjournal.org 1.78%, dcinside.com 1.34%; AI referral ChatGPT 0.09%, opencode.ai 0.07%. New users are classed as other.
Pay as you go (card top-up minimum $1, crypto minimum $0.10); PRO subscription $12/month
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.
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