AI Sigil vs CalypsoAI
Side-by-side comparison of framework coverage, pricing, capabilities, and target customers. Last verified recently.
https://aicompliancevendors.com/compare/ai-sigil-vs-calypsoaiAI Sigil
Centralised AI compliance platform for inventory, assessment, documentation, monitoring, audit, and risk management.
AI Sigil is a centralized AI compliance platform that helps organizations inventory, assess, document, monitor, audit, and manage risks in AI systems.
CalypsoAI
Adaptive AI security platform securing models and applications at inference layer
CalypsoAI provides a full-lifecycle platform to secure AI models, applications, and agents at the inference layer against adversarial threats, data leaks, and compliance failures. The platform offers real-time threat defense, proactive red-teaming with agentic testing against thousands of attack prompts monthly, runtime guardrails for sensitive data and policy enforcement, and centralized observability with audit logs for regulatory needs. Targeted at enterprises deploying GenAI, it supports model-agnostic protection across SaaS, on-premises, and hybrid environments, enabling safe innovation without vendor lock-in. Acquired by F5 in 2025 for $180M, its capabilities integrate into F5's application delivery platform.F5 press release, Paladin press, homepage (279 words)
What the data shows
We haven't published an editorial verdict on this pair yet. The comparison below is built from public vendor materials and our taxonomy — no editorialized ranking.
- Shared framework coverage: None documented in common.
- Only CalypsoAI covers: EU AI Act, GDPR Art. 22, HIPAA
- Shared capabilities: 0 of 9 listed.
Want our editorial take? Email the editors or read our methodology.
At a glance
| Attribute | AI Sigil | CalypsoAI |
|---|---|---|
| Founded | Undisclosed | 2018 |
| Headquarters | United States | Dublin, Ireland |
| Employees | Undisclosed | 51-200 |
| Funding | Undisclosed | $40M+ venture funding; Series A $13M (2020, Paladin-led), $23M (2023, Paladin-led), Crosspoint (2025); acquired by F5 for $180M (2025) |
| Pricing | Contact for pricing | Enterprise licensing; contact sales for quote, depending on deployment (SaaS/on-prem/hybrid) and plan. |
| Website | Visit site | Visit site |
Framework coverage
| Framework | AI Sigil | CalypsoAI |
|---|---|---|
| EU AI Act | — | Partial |
| GDPR Art. 22 | — | Partial |
| HIPAA | — | Partial |
Capabilities
| Capability | AI Sigil | CalypsoAI |
|---|---|---|
| AI Incident Response | — | ✓ |
| Audit Logging | — | ✓ |
| Hallucination Detection | — | ✓ |
| LLM Evaluation | — | ✓ |
| LLM Guardrails | — | ✓ |
| LLM Guardrails & Content Filtering | — | ✓ |
| LLM Observability | — | ✓ |
| LLM Red Teaming | — | ✓ |
| Prompt Management | — | ✓ |
Industries served
AI Sigil
- None listed
CalypsoAI
- Government & Public Sector
- Defense & National Security
Integrations
AI Sigil
- None listed
CalypsoAI
- None listed
Frequently asked
What is the difference between AI Sigil and CalypsoAI?+
AI Sigil is Centralised AI compliance platform for inventory, assessment, documentation, monitoring, audit, and risk management; CalypsoAI is Adaptive AI security platform securing models and applications at inference layer. The full side-by-side covers framework coverage (0 shared, 0 unique to AI Sigil, 3 unique to CalypsoAI), pricing model, and capability overlap.
How do AI Sigil and CalypsoAI pricing compare?+
AI Sigil: Pricing not publicly disclosed. CalypsoAI: Enterprise licensing; contact sales for quote, depending on deployment (SaaS/on-prem/hybrid) and plan.
Which AI compliance frameworks do AI Sigil and CalypsoAI both support?+
There is no published overlap in framework coverage between AI Sigil and CalypsoAI based on each vendor's own materials.
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Editorial independence: This comparison is free and was not paid for by either vendor. See our methodology.