Google Cloud Model Armor: Pricing, Tiers and What's Actually Covered
Google Cloud native prompt-injection, jailbreak, sensitive-data and grounding filter. Free up to 2M tokens per month per project as a standalone service.
Where this rate sits
Position bar across the cluster of vendors with a paid published rate. Open-source and free-tier offerings are excluded so the bar reflects only commercial published prices.
Model Armor sits at $0.1. Cheapest paid published rate is Bedrock Guardrails at $0.08. Dearest is Model Armor at $0.1. Across 2 vendors with a paid published rate.
Pricing tiers
Verbatim from the Model Armor pricing page on 2026-06-19. Quote-only tiers are surfaced as such, never with an inferred price.
| Tier | Price | Free allowance | Notes |
|---|---|---|---|
| Standalone (first 2M tokens/month) | Free / million tokens | 2,000,000 tokens/month | No cost up to allowance |
| Standalone (above 2M tokens/month) | $0.1 per million tokens | - | 1 token approx 4 chars |
Source: https://cloud.google.com/security-command-center/pricing | Verified 2026-06-19
OWASP LLM Top 10 coverage
What Model Armor defends against, as claimed on its product pages and security documentation. Coverage flags are binary: an item is listed only if the vendor names the attack class explicitly.
- LLM01 Prompt injection
- LLM02 Sensitive information disclosure
- LLM03 Supply chain
- LLM04 Data and model poisoning
- LLM05 Improper output handling
- LLM06 Excessive agency
- LLM07 System prompt leakage
- LLM08 Vector and embedding weaknesses
- LLM09 Misinformation
- LLM10 Unbounded consumption
Hidden costs
Beyond the line-item price, every runtime AI guardrail carries operating costs the vendor page does not surface. Plan for these in any board paper.
- Per-call latency overhead. Guardrail check sits in the request path; budget 50 to 300 ms extra per LLM call.
- False-positive remediation. Allocate engineering time to tune policies after every guardrail rule change.
- Logging and retention. Guardrail decisions need to land in your SIEM. See siemcostcalculator.com.
- On-call coverage. Treat AI security alerts like SOC alerts. See securityoperationscost.com.
What Model Armor is best for
Google Cloud native prompt-injection, jailbreak, sensitive-data and grounding filter. Free up to 2M tokens per month per project as a standalone service.