CalypsoAI
CalypsoAI is an AI security company that provides model-agnostic LLM firewall, red-teaming, and runtime guardrails to large enterprises, primarily Fortune 500 firms in financial services and healthcare, protecting AI systems against prompt injection, jailbreaks, and data leakage. Acquired by F5 for $180M in 2025.
- Company typePrivate
- Founded2018
- HeadquartersWashington, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
CalypsoAI firmographics
Firmographics- Name
- CalypsoAI
- Legal name
- CalypsoAI Corp.
- Website
- https://calypsoai.com
- Company type
- Private
- Founded year
- 2018
- Operating status
- Acquired
- Headcount range
- 51–100 employees
- Short description
- CalypsoAI is an AI security company that provides model-agnostic LLM firewall, red-teaming, and runtime guardrails to large enterprises, primarily Fortune 500 firms in financial services and healthcare, protecting AI systems against prompt injection, jailbreaks, and data leakage. Acquired by F5 for $180M in 2025.
- Ownership category
- akta.pro rank
CalypsoAI industry classification
Industry- Product category
- AI Security Software
- NAICS
- Security Systems Services (56162), Computer Systems Design and Related Services (54151)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Prompt Security & Injection Defense (HDAAAKAE)
- akta.pro secondary industries
- Secure Model Deployment & Runtime Protection (sandboxing, isolation) (HDAAAKAH), Audit, Explainability & Accountability Tooling (traceability, reporting) (HDAAAKAL), Enterprise AI Governance, Risk & Compliance Platforms (Model Risk, Audit, Policies) (HDAEANAE)
Keywords
Where CalypsoAI is headquartered
LocationHeadquarters
- HQ city
- Washington
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
CalypsoAI business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- AI Security Software Licensing: CalypsoAI generated revenue through licensing its AI security platform including GenAI scanners, guardrails, and red teaming capabilities to enterprise customers. Post-acquisition, these capabilities are integrated into F5's subscription and software revenue streams.
- Enterprise AI Security Solutions: Revenue derived from providing comprehensive AI security solutions including prompt injection defense, content moderation, and AI observability to enterprise organizations deploying AI at scale.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Enterprise pricing - custom quotes |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
CalypsoAI product offering
Product offeringCore offering
CalypsoAI developed an AI security platform offering an LLM firewall, customizable generative AI (GenAI) scanners, and automated AI red-teaming capabilities. The platform provides model-agnostic runtime protection against prompt injection, jailbreaks, data leakage, and model poisoning for enterprises deploying AI systems. Following its 2025 acquisition by F5, these capabilities became the foundation for F5's AI Guardrails and AI Red Team products.
Product overview
CalypsoAI was an AI security company that developed enterprise AI security technology including LLM firewalls, generative AI scanners, and adversarial testing (red teaming) capabilities. The company was acquired by F5 in September 2025 for $180 million, and its technology became the foundation for F5's AI Guardrails and AI Red Team products within the F5 Application Delivery and Security Platform (ADSP). CalypsoAI's capabilities include real-time threat defense against prompt injection and jailbreak attacks, automated adversarial testing with continuously updated attack databases, and proactive data leakage prevention for AI models and agents.
Differentiator
Problem solved
Functional benefit
Products and services
- CalypsoAI Moderator AI agent security tool that reduces risk in AI deployments by providing protection against prompt injection, data leakage, and unauthorized access. Targeted at enterprises deploying AI agents in production.
- CalypsoAI GenAI Scanners Customizable scanners for evaluating and securing generative AI models, providing real-time threat defense against prompt injection and jailbreak attacks. Designed for organizations deploying GenAI models in production environments.
- CalypsoAI AI Security Platform Enterprise AI security platform offering model-agnostic AI security, red teaming with over 10,000 new attack prompts tested monthly, and proactive data leakage prevention. Designed for Fortune 500 enterprises deploying AI at scale.
- F5 AI Guardrails (CalypsoAI-derived) Post-acquisition enterprise AI security product providing model-agnostic real-time threat defense against prompt injection and jailbreak attacks, red teaming with over 10,000 new attack prompts tested monthly, and proactive data leakage prevention. Available as proxy layer intercepting prompts and outputs.
- F5 AI Red Team (CalypsoAI-derived) Automated adversarial testing against AI systems with a database growing by 10,000 attack technique entries monthly. Helps organizations stress-test AI systems before production deployment.
Quantifiable outcome
- 98.36% total security score in SecureIQLab testing against 19,679 adversarial test cases
- +4 more outcomes
Companies that use CalypsoAI
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles2 records
CalypsoAI technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability5 records
Feature5 records
CalypsoAI partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- NVIDIAcoreF5's AI infrastructure and security solutions, including those derived from CalypsoAI, are integrated with NVIDIA infrastructure. Independent testing by Tolly Group showed F5 BIG-IP Next for Kubernetes delivered AI inference gains when deployed with NVIDIA AI infrastructure. F5 leverages NVIDIA BlueField DPUs and RTX PRO Server for AI workloads.
- Dell TechnologiescoreDell is a technology alliance partner with F5, with joint solutions securing data, models, and APIs between systems. SecureIQLab validated F5 BIG-IP and Dell ObjectScale for AI data delivery with tested S3 throughput and resiliency under various conditions.
- ForcepointcoreF5 and Forcepoint announced a partnership to secure AI from data to runtime, integrating capabilities to extend protection across the full AI lifecycle.
- EquinixcoreEquinix is a technology alliance partner with F5, with joint solutions for securing AI across distributed environments. F5 Distributed Cloud Customer Edge (CE) is available at Equinix for multicloud simplification.
Scale indicators6 records
Recent moves8 records
Expansion highlights6 records
CalypsoAI competitors and assessment
Company assessmentDirect peers
- Robust Intelligence: Robust Intelligence (acquired by Cisco) built an AI security platform focused on model vulnerability testing, adversarial robustness, and runtime protection for ML and LLM systems, directly mirroring CalypsoAI's red-teaming and firewall capabilities.
- HiddenLayer: HiddenLayer provides AI application security and model scanning for adversarial threats, offering an ML/LLM security platform that competes head-to-head with CalypsoAI's scanner and firewall offerings.
- Protect AI: Protect AI (acquired by Palo Alto Networks) offers an AI security platform spanning model scanning, red teaming, and runtime guardrails, making it a near-direct competitor to CalypsoAI's AI Red Team and AI Guardrails suite.
- Lakera: Lakera focuses on prompt injection and LLM application security through its Gandalf platform and enterprise Guardrails product, overlapping closely with CalypsoAI's prompt-injection defense and LLM firewall capabilities.
- Prompt Armor: Prompt Armor provides AI security and LLM firewall solutions targeting prompt injection and data leakage, making it a closely comparable specialist vendor in the same buyer conversations as CalypsoAI.
Broad incumbents
- Amazon Web Services (Bedrock Guardrails): AWS Bedrock Guardrails provides built-in content filtering and safety controls for foundation models on AWS, representing a bundled, hyperscaler-native competing offering to CalypsoAI's standalone AI Guardrails.
- Microsoft (Azure AI Content Safety): Microsoft Azure AI Content Safety delivers prompt-injection and jailbreak detection as part of its Azure AI platform, competing with CalypsoAI's offerings as a bundled incumbent option for enterprises already on Azure.
- Google Cloud (Vertex AI Safety): Google Cloud provides AI safety and content filtering capabilities within Vertex AI, offering a hyperscaler-native alternative to CalypsoAI's model-agnostic guardrails for enterprises standardized on GCP.
Emerging players
- Arthur AI: Arthur AI offers an AI observability platform for model performance, fairness, and drift monitoring, overlapping with CalypsoAI's observability and governance use cases but with a broader ML focus beyond LLM security.
- WhyLabs: WhyLabs provides AI observability and guardrails for LLM applications, including data and model monitoring, making it a partial-overlap emerging player in the same AI security and governance category as CalypsoAI.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
CalypsoAI social profiles
Digital presenceCalypsoAI financial estimates
Financial estimateRevenue estimate
Valuation estimate
CalypsoAI leadership team
Management profileNumber of profiles
Profiles5 records
CalypsoAI funding detail
Funding detailFunding overview
Funding rounds5 records
Investors14 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CalypsoAI M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about CalypsoAI
What does CalypsoAI do?
CalypsoAI developed an AI security platform offering an LLM firewall, customizable generative AI (GenAI) scanners, and automated AI red-teaming capabilities. The platform provides model-agnostic runtime protection against prompt injection, jailbreaks, data leakage, and model poisoning for enterprises deploying AI systems. Following its 2025 acquisition by F5, these capabilities became the foundation for F5's AI Guardrails and AI Red Team products.
Is CalypsoAI a public or private company?
CalypsoAI is a private company. It is classified as venture growth investor backed and is currently acquired.
When was CalypsoAI founded?
CalypsoAI was founded in 2018. It employs 51 to 100 people.
Where is CalypsoAI based?
CalypsoAI is headquartered in Washington, United States, in the North America region.
How does CalypsoAI make money?
Two revenue lines are on record. AI Security Software Licensing is the primary driver. The others are enterprise AI Security Solutions.
Who are CalypsoAI's main competitors?
Direct peers on record are Robust Intelligence, HiddenLayer, Protect AI, Lakera and Prompt Armor. Broad incumbents are Amazon Web Services (Bedrock Guardrails), Microsoft (Azure AI Content Safety) and Google Cloud (Vertex AI Safety). Emerging players are Arthur AI and WhyLabs.
Does CalypsoAI have an API?
No public API is recorded for CalypsoAI.
What industry is CalypsoAI in?
CalypsoAI's product category is AI Security Software. Its primary akta.pro industry code is HDAAAKAE, Prompt Security & Injection Defense, with a secondary code of HDAAAKAH, Secure Model Deployment & Runtime Protection (sandboxing, isolation). Its NAICS code is 56162 and its SIC code is 7372.