Top Cisco AI Defense (Robust Intelligence) Alternatives for 2026
Cisco AI Defense (Robust Intelligence) focuses on ai firewall & assessment. Now part of Cisco, many teams evaluate alternatives for broader agent coverage, different deployment models, or pricing that fits their scale. Here are the top competitors to consider.
Category: Runtime Guardrails & AI Firewall • Last reviewed: 2026-07-03
What is Cisco AI Defense (Robust Intelligence)?
Robust Intelligence was one of the first companies to productize AI red teaming and the "AI firewall" concept, founded in 2019 by Harvard professor Yaron Singer. Cisco acquired it in October 2024, and the product no longer exists as a standalone platform: its validation engine and firewall became Cisco AI Defense, which couples algorithmic red teaming with runtime enforcement distributed through Cisco's network fabric. For existing Robust Intelligence customers this meant migrating into the Cisco ecosystem; for new buyers, the technology is only available as part of Cisco's broader security portfolio.
Why teams look for Cisco AI Defense (Robust Intelligence) alternatives
The most common reason teams look elsewhere is bundling: AI Defense is designed to be consumed with Cisco infrastructure, and buyers who do not run Cisco networking or Secure Access get less value from the integration. Teams that want a standalone, vendor-neutral runtime layer — or one deployable inside their own VPC — typically shortlist independents.
GuardionAI
GuardionAI delivers the runtime half of what AI Defense promises — inline inspection of every agent action — without requiring a network-infrastructure relationship, and adds agent-native controls (MCP call governance, tool-call inspection, coding-agent EDR) that AI Defense does not focus on.
Why it's better than Cisco AI Defense (Robust Intelligence)
sub-130ms guardrails latency • 96.3 F1 on the Prompt Security Leaderboard with 0.02% false positives • 50M+ agent actions protected per month
Lakera (Check Point)
A focused runtime security layer protecting against prompt injection, PII leakage, and hallucinations via API. Acquired by Check Point in late 2025 (~$300M reported); Lakera Guard and Lakera Red remain live products and anchor Check Point's Center of Excellence for AI Security.
- High performance / Low latency
- Vast threat intelligence database
Meta (Llama Guard)
A set of LLM safeguards designed to detect violating content across multiple use cases. Model-based guardrail.
Prompt Security (SentinelOne)
Secures the entire lifecycle of Generative AI, protecting employees from risky AI use and developers from insecure model integrations. Acquired by SentinelOne in September 2025 (~$250M reported) and integrated into the Singularity platform for prompt injection, data leakage, and shadow AI protection.
- Ease of integration
- Strong developer workflows
Cisco AI Defense (Robust Intelligence) is a good fit for…
- •Enterprises already standardized on Cisco networking and Secure Access
- •Security teams that want model validation and runtime enforcement from one large vendor
- •Organizations that prefer buying AI security through an existing Cisco agreement
Look at alternatives if…
- •Teams wanting a standalone product independent of Cisco infrastructure
- •Startups and mid-market buyers without Cisco enterprise agreements
Our verdict
Strong choice if you are a Cisco shop and want AI security woven into your existing network fabric. If you need a vendor-neutral, agent-native runtime layer you can deploy anywhere, evaluate independents like GuardionAI, HiddenLayer, or Protect AI (Prisma AIRS) first.
Frequently asked questions
What happened to Robust Intelligence?
Cisco acquired Robust Intelligence in October 2024. Its AI validation and firewall technology now ships as Cisco AI Defense, integrated with the Cisco security stack; the standalone Robust Intelligence platform is no longer sold separately.
Is Cisco AI Defense the same as Robust Intelligence?
Cisco AI Defense is built on Robust Intelligence's technology — algorithmic red teaming and runtime guardrails — but is a broader Cisco product that adds network-level visibility and is sold as part of the Cisco security portfolio.
What is Cisco AI Defense (Robust Intelligence)?
Robust Intelligence pioneered the AI firewall and automated model assessment. Acquired by Cisco in 2024, its technology now ships as Cisco AI Defense — runtime protection, model validation, and AI visibility integrated with the Cisco security stack. It is categorized under Runtime Guardrails & AI Firewall in the Guardion AI Security Index.
Who owns Cisco AI Defense (Robust Intelligence)?
Cisco AI Defense was acquired by Cisco. Acquired by Cisco in 2024, its technology now ships as Cisco AI Defense — runtime protection, model validation, and AI visibility integrated with the Cisco security stack.
Is Cisco AI Defense (Robust Intelligence) open source?
No, Cisco AI Defense (Robust Intelligence) is a commercial product (Enterprise (Cisco)).
What are the best Cisco AI Defense (Robust Intelligence) alternatives?
Teams evaluating Cisco AI Defense (Robust Intelligence) most often compare it with Lakera (Check Point), Meta (Llama Guard), Prompt Security (SentinelOne), and GuardionAI — all listed under Runtime Guardrails & AI Firewall.
How does Cisco AI Defense (Robust Intelligence) compare to GuardionAI?
Cisco AI Defense (Robust Intelligence) focuses on ai firewall & assessment, while GuardionAI is an agent runtime governance platform ("EDR for AI agents") that governs every agent tool call inline with sub-130ms guardrails latency.
Last reviewed: 2026-07-03
Sources: cisco.com · robustintelligence.com