Start free. Pay when the room gets bigger.
Playing is always free — every public challenge, no login, no cap. Hosting starts free too. When you run a bigger room, you pay for that one event. The only subscription is Enterprise.
For individuals and first-timers — the funnel.
- Full solo play on every public challenge — no login, no count cap
- Earn ELO and a spot on the global leaderboard
- Host 1–2 live events — capped room, free challenge set
- No teams, no saved or exported results
- "Powered by PromptInjects" badge on the leaderboard
For a talk, workshop, class, or team offsite — pay per event.
- One live event, sized with the calculator
- Levers: room size, single- or multi-day, public or private & branded
- Add by checkbox: team mode, co-branding, exported leaderboard, private challenges
- Full challenge library for the event
- Card checkout, no sales call — ~50-player private events land around $300–$500
For ongoing team upskilling and recurring events.
- Annual subscription — practice-mode seats + recurring / unlimited events
- Custom-developed challenges on your own stack and threat model
- Speaker engagement on request
- Custom co-branding — your logo alongside ours (never white-label)
Prices shown in your region's currency and are indicative — your exact total is confirmed at checkout. Players never pay.
The badge stays on — every tier, always. It's a product rule, not a paid toggle. Private & branded events and Enterprise can add your logo alongside it (co-brand), but it's never white-label. A leaderboard in front of a room is how the next host discovers us — so playing stays free and the badge stays on.
One event, priced by its size.
No subscription and no credits to budget. The calculator on the host page has just a few levers — how many players, how many days, and whether the room is public or private & branded — plus a couple of optional extras. You see the exact price before you check out, and you pay once for that event.
Run another next quarter? Size it again then. Teams who run events constantly, or who want custom challenges and practice-mode seats, belong on Enterprise — that's the one place a subscription makes sense.
Pricing questions, answered
Is PromptInjects free?
Yes. Every public challenge is free to play with no login and no cap, and accounts are free. Hosting starts free too — your first events are on us. Players never pay, on any tier.
Is there a monthly subscription?
No. Regular hosting is pay-per-event, because most people run events every few months — a monthly fee against episodic use just designs its own churn. The one subscription is Enterprise, for teams with genuinely recurring use.
How much does it cost to host an event?
Events start at $99 and scale with room size, days, and branding. A private, branded ~50-player single-day event lands around $300–$500. The calculator shows your exact price before checkout.
Can I remove the "Powered by PromptInjects" badge?
No — it stays on every tier, including Enterprise. Enterprise can co-brand (your logo alongside ours), but it's never white-label. The badge in front of a room is how people discover us.
What's the difference between Event and Enterprise?
Event is a self-serve, one-off purchase with a card. Enterprise is an annual relationship — practice seats, recurring events, custom challenges, and speaker engagements — and goes through sales.