Prompt Inspector pricing
5 plans read from promptinspector.io
FreeFree 1,000 detections / month1,000 detections / month · REST API · SDK · MCP Read 4 Oct 2026 · promptinspector.io
FreeFree 1,000 detections/month · no credit card stated Read 15 Oct 2026 · appsecsanta.com
EnterprisePriced on request Private/on-premises deployment · dedicated support Read 15 Oct 2026 · appsecsanta.com
ProPriced on request pay-as-you-growCloud service; exact allowance and price not stated Read 15 Oct 2026 · appsecsanta.com
StarterPriced on request 100,000 requests/month · 50 req/s · < 50 ms P95 Read 4 Oct 2026 · promptinspector.io
In short
- Prompt Inspector has a free plan (Free).
- 3 plans are priced on request (Enterprise, Pro, Starter).
What the alternatives costAll alternatives →
| Tool | From | Free plan | Free trial |
|---|---|---|---|
| CyberSecEval | — | Yes | No |
| PromptGuard | $19/mo | Yes | No |
| GuardionAI | — | No | Yes |
| NVIDIA NeMo Guardrails | — | Yes | No |
| Openlayer Guardrails | — | Yes | Yes |
| Cisco Catalyst Center | — | No | No |
| Cloudflare Advanced Certificate Manager | $10/mo | No | No |
| GLACIS | — | Yes | No |