Last updated: 7 November 2026. Facts are vendor claims checked on that date; nothing was tested independently.

HiddenLayer

A broad AI security platform. Red teaming runs as continuous, automated attack simulation alongside model supply-chain scanning and runtime defense.

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What it tests

Claimed on the vendor's own pages. Nothing here was tested independently.

• Jailbreaks
• Prompt injection
• Agent / tool abuse
• Data leakage
• Model supply chain
• Model poisoning
• Model extraction

Framework mappings

None named on the pages opened. None named on the red-teaming pages that were opened. Search snippets suggested the separate AI Discovery module maps to MITRE ATLAS, OWASP and NIST; that was not confirmed on an opened page, so no mapping is shown.

Offering

• Red teaming is sold as the "AI Attack Simulation" module, next to AI Discovery, Supply Chain Security and Runtime Security.
• The product and solution pages describe no managed or expert-led service.

Pricing

Not public. Not public; demo only. Free tier: none stated. See what AI red teaming costs.

Ownership history

Independent. HiddenLayer announced a $100M Series B led by Delta-v Capital in September 2026; the release names Austin, TX as headquarters.

Alternatives

Three vendors with a similar offering type and overlapping coverage. Chosen by category and claimed coverage, then alphabetically; no ranking is implied.

• Holistic AI

  Automated platform Independent

  Suited to buyers whose need is driven by compliance rather than by the security team.

• Noma Security

  Automated platform Independent (VC-backed)

  Red teaming is one module of an AI security platform with runtime detection and response.

• Repello AI

  Automated platform Independent

  A red-teaming-first platform with explicit multimodal (text, image, audio) and MCP/RAG coverage.