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Guardion AI sells a runtime security layer for AI agents: an inline gateway and its own guardrail model that block prompt-injection attacks and strip sensitive data from what agents send and receive. The big cloud AI platforms now ship overlapping guardrail controls, and Guardion's own benchmark compares it against third-party guardrails and open-source models (s2, s6). Its distinct attributes in the record: a team with Apple and Nubank experience, a guardrail model trained across eight-plus languages (s2) with no per-language competitor benchmark, and a seat in Brazil's ANPD regulatory sandbox. Its named customers are still private and its headline benchmark is its own, so the regional regulatory foothold, more than the guardrail, is what a buyer can weigh today.
| Description | Guardion AI is a runtime governance platform that runs inline as a security gateway or Guard API, giving security teams real-time visibility, enforcement, and evidence across customer-facing, autonomous, and coding AI agents. | [f1] |
|---|
| Product | What it does |
|---|---|
| Guardion AI | Inline security gateway and Guard API enforcing runtime guardrails, PII redaction, and policy on every LLM, agent, and MCP call, with observability and tamper-evident audit. |
| ModernGuard | Multilingual guardrail model series built on ModernBERT and trained on proprietary data to detect prompt-injection and jailbreak attacks across many languages. |
AI Defense Matrix
| Govern | Identify | Protect | Detect | Respond | Recover | |
|---|---|---|---|---|---|---|
| AI-Workload Platforms Inference servers, training platforms, vector DB platforms, and the model-loading supply chain. | ||||||
| AI Orchestration Tools Agentic orchestration tools, plus their plugins, skills, hooks, system prompts, scaffolding, harnesses, configuration settings, and MCP clients on user devices. | ||||||
| AI-Generated Code Code produced by AI tools, AI-assisted reviews, AI-generated infrastructure-as-code and tests, and vibe-coded apps that bypass CI/CD. | ||||||
| AI Gateways & Routers MCP proxies and gateways, LLM routers, outbound AI-service traffic, shadow AI egress, and model-registry traffic. | ||||||
| AI Model Model weights, fine-tuning checkpoints, model cards, registries, AIBOM, and the third-party LLMs your enterprise consumes. | ||||||
| Training Data Datasets used for training, fine-tuning, and continued learning. | ||||||
| Runtime AI Data User prompts, inference inputs, RAG content, vector DB content, persistent agent memory, and interaction history. | ||||||
| AI Agent Identities AI agents as non-human principals, plus credentials, keys, permission scopes, service accounts, and delegation chains across agents and tools. |
Guardion AI runs runtime guardrails and an inline security gateway that detect and block prompt injection and jailbreaks, redact PII, and enforce policy on every LLM, agent, and MCP call. These capabilities are mapped to the AI Defense Matrix. [f2]
How well the company can compete in its security market, scored across eight dimensions against public evidence.
| Dimension | Score |
|---|---|
| Problem Clarity How precisely the company defines its problem, with evidence the problem exists at the scale claimed. | 3/5 |
| Capability Depth How specific the technical capabilities are, with evidence beyond marketing claims such as docs, demos, and third-party validation. | 3/5 |
| Market Timing Whether the market is ready for this product, with evidence that buyers are actively seeking solutions. | 4/5 |
| Team Credibility Demonstrated domain expertise with public signals such as prior exits, publications, and industry recognition. | 3/5 |
| GTM Proof Evidence of actual traction (customers, revenue signals, partnerships) beyond stated intentions. | 2/5 |
| Funding Efficiency Whether funding matches go-to-market ambition, with signs of capital-efficient growth. | 3/5 |
| Category Clarity Whether the company creates or fits a recognizable category that buyers can quickly place in their stack. | 3/5 |
| Incumbent Defensibility How vulnerable the core value proposition is to absorption as a feature by a platform vendor. | 3/5 |
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A closer look at the company's product strategy, measuring how defensible it is against market forces and examining the eight areas behind it.
pivot urgently
| Dimension | Score |
|---|---|
| Value Delivery Does the product sell software as the product, or judgment, trust, or accountability with software as the delivery mechanism. | 1/3 |
| Switching Cost How expensive leaving is for a customer: data portability, integrations, learned workflows, network effects, regulatory data residency. | 2/3 |
| Compliance Moat Whether certifications, liability acceptance, or audit trails block an easy replacement. | 1/3 |
| Problem Complexity Whether the product requires ML, optimization, real-time systems, or years of specialized expertise. | 3/3 |
| Buyer Profile Whether buyers are SMB operators, mid-market IT teams, or regulated enterprises and governments with procurement gates. | 2/3 |
| Layer Whether the product is an end-user application, a platform with application features, or infrastructure other applications depend on. | 2/3 |
| Proprietary Data, Content, or IP Whether the product accumulates datasets, content licenses, or IP that a rival cannot recreate from scratch. | 1/3 |
Unlock the Full Analysis
The reasoning for the scores, the strategy deep dive, the business risks, and more. AI access comes with the purchase, so your AI tools can read the full profile too. You keep 12 months of access.
One-time purchase: $20 per profile.
UnlockReading several? Unlock the entire catalog.
| Id | Source | Tier | Accessed |
|---|---|---|---|
| f1 | Guardion AI: Agent Runtime Security | official | 2026-07-09 |
| f2 | AI Defense Matrix Catalog mapping | other | 2026-07-03 |
| Id | Source | Tier | Accessed |
|---|---|---|---|
| s1 | Guardion AI homepage (inline gateway or Guard API, LatAm fintech use, +50M agent actions/month, Siri-engineer team, Entrepreneurs First backing) “Trusted in production by the largest fintechs in LatAm ... +50M Agent actions / month protected ... Built by the engineers who secured Siri ... all logs are tamper-evident and exportable to your SIEM ... SOC 2 Type II, in progress” | official | 2026-07-03 |
| s2 | ModernGuard blog: self-run prompt-attack benchmark and ModernBERT architecture “GuardionAI/ModernGuard | 0.986 ... Lakera Guard | 0.787 ... Built on a cutting-edge ModernBERT encoder” | official | 2026-07-03 |
| s3 | Guardion AI (AI Defense Matrix Catalog): runtime guardrail platform and inline gateway “Runtime guardrail platform and inline security gateway that detects and blocks prompt injection, jailbreaks, and unsafe agent actions, and redacts PII across LLM and MCP calls.” | other | 2026-07-03 |
| s4 | Brazil ANPD AI regulatory sandbox: Metatext (developer of Guardion.AI) selected, team from Apple, Nubank, USP “A Metatext é a desenvolvedora da Guardion.AI, plataforma de segurança para inteligência artificial ... A Metatext é formada por um time global de engenheiros e pesquisadores especialistas em IA com experiência na Apple, Nubank e USP.” | regulatory | 2026-07-03 |
| s5 | Google for Startups Accelerator: AI for Cybersecurity Latin America cohort names GuardionAI (Brazil) “the 11 startups selected for our inaugural Google for Startups Accelerator: AI for Cybersecurity program in Latin America ... GuardionAI (Brazil): An AI security platform that protects AI agent systems” | press | 2026-07-03 |
| s6 | Guardion AI vendor-hosted runtime-guardrail and LLM security benchmark (self-compared) “Independent benchmarks that show how AI models and AI runtime guardrails fail under real adversarial pressure, before they fail in production.” | official | 2026-07-03 |
| s7 | Guardion AI trust-surface probe 2026-07-03: homepage footer states SOC 2 Type II in progress; no trust portal (trust. subdomain absent, /security not published) “SOC 2 Type II, in progress ... GDPR · HIPAA · LGPD” | official | 2026-07-03 |
| Id | Source | Tier | Accessed |
|---|---|---|---|
| s1 | Guardion AI homepage (inline gateway and Guard API, 30-day onboarding, Siri-engineer team, Entrepreneurs First backing, LatAm fintech use) “A Guardion engineer embeds with your team for 30 days. Replaces the ~12 months and 3+ engineers it takes to build this in-house ... Either way it is zero-instrumentation ... all logs are tamper-evident and exportable to your SIEM ... SOC 2 Type II, in progress” | official | 2026-07-03 |
| s2 | ModernGuard blog: self-run prompt-attack benchmark and ModernBERT architecture “GuardionAI/ModernGuard | 0.986 ... Lakera Guard | 0.787 ... Built on a cutting-edge ModernBERT encoder” | official | 2026-07-03 |
| s3 | Guardion AI (AI Defense Matrix Catalog): runtime guardrail platform and inline gateway “Runtime guardrail platform and inline security gateway that detects and blocks prompt injection, jailbreaks, and unsafe agent actions, and redacts PII across LLM and MCP calls.” | other | 2026-07-03 |
| s4 | Brazil ANPD AI regulatory sandbox: Metatext (developer of Guardion.AI) selected, team from Apple, Nubank, USP “A Metatext é a desenvolvedora da Guardion.AI, plataforma de segurança para inteligência artificial ... A Metatext é formada por um time global de engenheiros e pesquisadores especialistas em IA com experiência na Apple, Nubank e USP.” | regulatory | 2026-07-03 |
| s5 | Google for Startups Accelerator: AI for Cybersecurity Latin America cohort names GuardionAI (Brazil) “the 11 startups selected for our inaugural Google for Startups Accelerator: AI for Cybersecurity program in Latin America ... GuardionAI (Brazil): An AI security platform that protects AI agent systems” | press | 2026-07-03 |
| s6 | Guardion AI vendor-hosted runtime-guardrail and LLM security benchmark (self-compared) “Independent benchmarks that show how AI models and AI runtime guardrails fail under real adversarial pressure, before they fail in production.” | official | 2026-07-03 |
| s7 | Guardion AI trust-surface probe 2026-07-03: homepage footer states SOC 2 Type II in progress; no trust portal (trust. subdomain absent, /security not published) “SOC 2 Type II, in progress ... GDPR · HIPAA · LGPD” | official | 2026-07-03 |
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