Pricing

Enterprise capability, mid-market budget.

One monthly price per plan, with seat limits by tier. On-device detection means inference costs us nothing per prompt, and that shows up in the price. Every plan starts with a conversation — we create your tenant and roll the extension out with you, so there is no self-serve trial to sign up for yet.

Design Partner Program

Not ready to pay yet? Run it free for 30 days.

We're taking on 3–5 Indian teams as design partners: the full product, up to 50 seats, no card and no auto-conversion to a paid plan. See the terms.

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Pricing

Three plans. One conversation.

A flat monthly price per plan, with seat limits set by tier. Detection runs on the device, so there is no per-prompt inference bill to pass on to you. Contact us for a quote scoped to your organization.

Starter

For a first rollout: see what your team is sending to AI, and stop the obvious leaks.

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Request access

Professional

Recommended

For teams that need evidence: incident correlation, an audit trail, and data they can take elsewhere.

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Request access

Enterprise

For regulated organisations: single sign-on, AI security briefings, and scale.

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SSO and SCIM work today, but we configure them for you rather than exposing self-serve setup. SIEM connectors are not built — event export is.

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Product roadmap
What's available today vs. what's coming
ShippedAvailable today
  • Browser extension (Chrome MV3) — ChatGPT, Claude, Gemini, Copilot, Perplexity, Open WebUI
  • On-device detection: credit cards (Luhn-checked), SSN, Aadhaar and PAN (checksum-validated), email, phone, AWS keys, generic high-entropy secrets, PEM private keys
  • Prompt-injection & jailbreak heuristics
  • Policy-as-Code DSL with YAML parser, evaluator, versioning
  • Cloud escalation to Amazon Nova Pro on Amazon Bedrock (optional, fail-open)
  • Go telemetry service with Postgres, self-migrating schema, SSE stream
  • Admin dashboard with live prompt monitor, policy manager, analytics
  • SSO via SAML 2.0 or OIDC, and SCIM 2.0 provisioning (we configure it for you)
  • Event export (CSV / JSON)
  • Alerting to Slack, email, webhook and PagerDuty
PlannedIn development
  • On-device ML classifier (transformers.js / ONNX Runtime Web) — prompt injection
  • Named Entity Recognition (transformers.js / ONNX Runtime Web) — names, organizations, locations
  • Non-US phone and additional national ID formats
  • Signed policy bundles (Cosign / Sigstore)
  • Audit log anchored publicly to Sigstore Rekor
  • Self-serve signup, trials and in-product billing
  • Automated enforcement of audit-retention windows
  • SIEM connectors (Splunk, Microsoft Sentinel, Datadog, Elastic)
  • MDM-pushable deployment (Microsoft Intune, Jamf, ManageEngine)
FutureOn the roadmap
  • Custom ML model fine-tuning per tenant
  • Document fingerprinting (MinHash) for proprietary content
  • Dedicated deployment + data residency (multi-region)
  • Physical isolation / on-prem option
  • BYOK (customer-managed encryption keys)
  • Policy simulation against historical traffic
  • Multi-modal: image input scanning, voice AI
Compare plans

What each plan actually includes.

Availability below is checked against the plan catalogue our provisioning actually reads, so the plan you buy is the plan you are given — this table isn't written to sell. Anything marked planned is not built yet and is not included in any plan — it is listed so you can see it coming, not so you can buy it.

CapabilityStarterProfessionalEnterprise
Limits
SeatsProvisioned at plan change; larger fleets are the Custom plan101001,000
Detection and enforcement
Browser extension (Chrome MV3)ChatGPT, Claude, Gemini, Microsoft Copilot, Perplexity, Open WebUIIncludedIncludedIncluded
On-device detectionAadhaar and PAN (checksum-validated), cards, SSN, email, phone, AWS keys, high-entropy secretsIncludedIncludedIncluded
Prompt-injection heuristicsInstruction override, jailbreaks, indirect injection, encoding evasionIncludedIncludedIncluded
Policy engineAllow, redact, warn, block — versioned, with rollbackIncludedIncludedIncluded
Model response scanningIncludedIncludedIncluded
On-device ML classifierBuilt and tested; switched off until a model backs itPlannedPlannedPlanned
Visibility
Live prompt monitorStreaming decisions, filterable by tool, user and categoryIncludedIncludedIncluded
Shadow AI discoveryIncludedIncludedIncluded
Threat analysisCorrelates violations into incidents and surfaces patternsNot includedIncludedIncluded
AI security briefingNot includedNot includedIncluded
Governance and evidence
Hash-chained audit logEditing or deleting an entry breaks the chain and is detectableNot includedIncludedIncluded
Event exportCSV and JSONNot includedIncludedIncluded
SIEM connectorsSplunk, Microsoft Sentinel, Datadog, Elastic. Export is available today; the connectors are not builtPlannedPlannedPlanned
Signed policy bundlesCosign/Sigstore verification in the extensionPlannedPlannedPlanned
Operations
Team management and invitesIncludedIncludedIncluded
AlertingSlack, email, webhook and PagerDuty destinationsIncludedIncludedIncluded
Cloud escalationAmazon Nova Pro on Bedrock for ambiguous prompts. Off by default, fails openNot includedIncludedIncluded
SSO — SAML 2.0 or OIDCWorking today, configured by our team rather than self-serveNot includedNot includedIncluded
SCIM 2.0 provisioningNot includedNot includedIncluded
MDM-pushable deploymentIntune, Jamf, ManageEngine packagingPlannedPlannedPlanned

Scroll the table sideways to compare plans

Before you buy

Audit retention is not a plan difference

Retention is configurable per tenant, but nothing automatically purges on it yet. We will not sell you a retention window we do not enforce — until the purge job ships, treat retention as “kept” rather than “deleted on schedule”.

Custom domains are not available on any plan

The field exists in our data model and you may see it referenced internally. There is no implementation behind it, so it is not part of any plan today.

We hold no compliance certifications

Not SOC 2, not ISO 27001, and we are not certified against the DPDP Act. What PromptSec gives you is a technical control and the evidence trail that supports one — never a certificate, and never an evidence package for a certification we do not hold.

Onboarding is hands-on, not self-serve

There is no self-serve signup yet. We create your tenant, deploy the extension with you, and invite your first users — which is why every plan starts with a conversation rather than a card.

FAQ

Questions, answered.

AI prompt security means watching what employees send to generative AI tools like ChatGPT, Claude, and Gemini, and stepping in when it matters — catching sensitive data, secrets, and prompt-injection attempts before the prompt reaches the AI, then applying a policy-defined action: allow, redact, block, or warn. PromptSec applies this at the browser, before a prompt ever leaves the employee's device. See below for exactly what it detects today.