CISO Tribune

Vendor comparison · 2 companies

Dreadnode vs Promptfoo

Dreadnode sells an infrastructure platform that gives security teams the means to own, operationalize, and improve agentic cyber capabilities. Promptfoo builds open-source tools for secure, reliable AI applications. CISO Tribune files both under AI model and agent security and Breach simulation and automated pen-testing. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Dreadnode
  • Promptfoo
Dreadnode vs Promptfoo: Products, Customers and Funding Compared
DreadnodeDreadnode sells an infrastructure platform that gives security teams the means to own, operationalize, and improve agentic cyber capabilities.dreadnode.ioPromptfooPromptfoo builds open-source tools for secure, reliable AI applications.promptfoo.dev
What it sells
  • AI Red Teaming[2][3][5]AI red teaming across AI systems in production, from traditional machine learning models to multi-agent systems.
  • Dreadnode Platform[3][4]Infrastructure for security teams to own, operationalize, and improve agentic cyber capabilities.
  • Red Teaming[2][4][5]Simulates real users to uncover application-specific vulnerabilities.
  • Evaluations[2][5]LLM evaluation of prompts and models that can run inside CI workflows.
Categories
Headquarters
Not stated on its pagesSan Francisco, United States[1][3]
Founded
Not stated on its pages2024[1][12]
Ownership and funding
Not stated on its pagesOwned by OpenAI[12]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • March 9, 2026OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.[13]
  • March 9, 2026OpenAI announced it has acquired Promptfoo, an AI security startup founded in 2024 to protect LLMs from adversarial attacks.[12]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Dreadnode sells to organizations that require scaled agentic workloads and custom capabilities. Dreadnode describes a cyber eval engagement for a frontier model provider. Organizations that need to run inside their own boundary can deploy Dreadnode on a Kubernetes cluster or in air-gapped environments, and on-prem deployment is available with the Enterprise plan.Not written yet
Last verified
November 6, 2026November 4, 2026

Where they overlap

  • AI model and agent security is the primary category of both Dreadnode and Promptfoo; both are also filed under Breach simulation and automated pen-testing.

Where they differ, field by field

  • Dreadnode is also filed under Penetration testing and red team services. Promptfoo is also filed under AI firewalls and guardrails and Static application security testing.
  • Dreadnode lists AI Red Teaming and Dreadnode Platform. Promptfoo lists Red Teaming and Evaluations.
  • Promptfoo is headquartered in San Francisco, United States.
  • Promptfoo was founded in 2024.
  • Promptfoo is owned by OpenAI.

How they differ

CISO Tribune files both Dreadnode and Promptfoo under AI model and agent security as the primary category, and both also appear under breach simulation and automated pen-testing. Dreadnode sells AI Red Teaming across AI systems in production, from traditional machine learning models to multi-agent systems. Dreadnode also sells the Dreadnode Platform, infrastructure for security teams to own, operationalize, and improve agentic cyber capabilities. Promptfoo sells Red Teaming that simulates real users to uncover application-specific vulnerabilities, and Evaluations that run LLM evaluation of prompts and models inside CI workflows.

Dreadnode describes operator-authored agents for security testing, research, and operations, plus web application penetration testing with 83 attack technique playbooks. Promptfoo describes thousands of context-aware attacks tailored to the customer's application, and its Community version includes up to 10k probes per month at no charge. Promptfoo can be integrated with a CircleCI pipeline and with test frameworks like Jest and Vitest. Dreadnode can run on an existing Kubernetes cluster or an embedded cluster on a dedicated VM, with offline installation bundles for air-gapped deployments.

Promptfoo is headquartered in San Francisco, United States, and was founded in 2024. Promptfoo is owned by OpenAI, which announced on March 9, 2026 that it had acquired the company. Dreadnode names a cyber eval engagement for a tier 1 frontier model provider, during which it built an initial suite of ER-Spatial security tasks. Dreadnode charges a one-time annual fee that varies with deployment requirements, SLAs, and custom work, while Promptfoo sets Enterprise pricing based on a team's size and needs.

What it sells: Dreadnode

What AI Red Teaming does[2][3][5]
Dreadnode applies AI red teaming across the full range of AI systems in production today, from traditional machine learning models to multi-agent systems. Dreadnode Platform evaluations probe models, applications, and deployed agents with adversarial attacks across supported languages and modalities.
What Dreadnode Platform does[3][4]
The Dreadnode Platform equips defenders with ready-to-run capabilities and shared operational knowledge. Dreadnode can be deployed on an existing Kubernetes cluster or an embedded cluster on a dedicated VM, with offline installation bundles for air-gapped deployments.

What it sells: Promptfoo

What Red Teaming does[2][4][5]
Promptfoo creates thousands of context-aware attacks tailored to the customer's application. The open-source Community version includes up to 10k probes per month at no charge.
What Evaluations does[2][5]
Promptfoo's LLM evaluation can be integrated into a CircleCI pipeline. Promptfoo can be integrated with test frameworks like Jest and Vitest to evaluate prompts as part of existing testing and CI workflows. Promptfoo provides real-time alerts and automated evaluations to show LLM security status across all projects.

Questions about Dreadnode and Promptfoo

What do Dreadnode and Promptfoo sell?
Dreadnode sells AI Red Teaming and Dreadnode Platform. Promptfoo sells Red Teaming and Evaluations.
Are Dreadnode and Promptfoo in the same category?
Yes. AI model and agent security is the primary category of both on CISO Tribune.
Where are Dreadnode and Promptfoo headquartered?
Promptfoo is headquartered in San Francisco, United States.
When were Dreadnode and Promptfoo founded?
Promptfoo was founded in 2024.
Who owns Dreadnode and Promptfoo?
Promptfoo is owned by OpenAI.
Who are Dreadnode and Promptfoo sold to?
Dreadnode sells to organizations that require scaled agentic workloads and custom capabilities.
What have Dreadnode and Promptfoo announced recently?
March 9, 2026: OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.

About Dreadnode

Dreadnode sells an infrastructure platform that gives security teams the means to own, operationalize, and improve agentic cyber capabilities. The Dreadnode Platform equips defenders with ready-to-run capabilities, shared operational knowledge, and the ability to run agents. Dreadnode describes the path to operationalize agents as fragmented and opaque. Dreadnode's capabilities are operator-authored agents for security testing, research, and operations, connected to the tools a team already uses.[3][5]

Ready-to-run cyber capabilities on the Dreadnode Platform put agents to work on security testing, research, and operations. The Dreadnode Platform supports persistent sessions across web and terminal, with search of past work and sharing with a team. Dreadnode Platform workflows coordinate agents by sequencing tasks, running work in parallel, and branching or combining results. The Dreadnode Platform connects existing command-line tools, MCP servers, and custom integrations. Versioned capabilities on the Dreadnode Platform can be shared with their instructions, tools, and dependency setup.[4]

Dreadnode Platform agents carry saved project context into new sessions and retrieve findings from earlier work. Dreadnode Platform users can review structured findings and assets with supporting evidence and relationships. The Dreadnode Platform versions and reuses datasets across evaluations, optimization, and training. Dreadnode Platform users can post-train models with demonstrations or rewards and retain the resulting model artifacts.[4]

Dreadnode combines task evaluations, LLM judges, and AI red teaming so a team can set the criteria for greater responsibility. Dreadnode Platform evaluations benchmark agents against published security tasks and a team's own tasks and environments. Dreadnode uses LLM judges to assess correctness, scope adherence, and signs of cheating against a team's criteria. The Dreadnode Platform probes models, applications, and deployed agents with adversarial attacks across supported languages and modalities. The Dreadnode Platform compares models, prompts, and capability versions with per-sample results and judge reasoning.[3][4]

Dreadnode Platform observability follows active agent sessions with live progress, metrics, and logs. The Dreadnode Platform inspects nested model and tool calls with their arguments and results. Dreadnode Platform traces connect findings back to the execution that produced them. Dreadnode Platform users can query traces to investigate failures and compare latency, token usage, and cost. Runtime policies in the Dreadnode Platform restrict tool access and check proposed actions against scope, and they allow, block, or request approval.[4]

Dreadnode offers AI red teaming across AI systems in production today, from traditional machine learning models to multi-agent systems. Dreadnode offers web application penetration testing with 83 attack technique playbooks. Dreadnode describes an autonomous pentester with a built-in headless browser and 84 skills. Dreadnode agents run network discovery and Active Directory assessments, connected to attack-path analysis and C2 tools. Dreadnode's authored capabilities cover web, AI, network, reverse engineering, and forensics.[2][3][4]

Dreadnode can be deployed on a customer's infrastructure, with application records, execution evidence, and capability artifacts in data stores the customer controls. Dreadnode runs on an existing Kubernetes cluster or on an embedded cluster on a dedicated VM, and offline installation bundles support air-gapped deployments. Dreadnode routes inference to approved providers or to models a customer hosts itself. Dreadnode offers on-prem deployment with the Enterprise plan. Dreadnode states that all evaluation, training, Worlds, and AI red teaming data stays within a customer's organization environment. Dreadnode SaaS meters workloads against a shared organization credit balance. Dreadnode stores secret values without returning them in normal API reads and injects them only into the remote runtimes and evaluations a user selects.[3][4][5][6][7]

Dreadnode treats organizations as an ownership boundary, and workspaces as the main collaboration boundary inside an organization. In SaaS mode, creating or updating workspaces on Dreadnode requires a Pro plan or higher. Dreadnode is SOC 2, ISO 27001:2022, and ISO 27701 compliant. Dreadnode charges a one-time annual fee that varies based on deployment requirements, SLAs, and custom work. Dreadnode built an initial suite of ER-Spatial security tasks during a cyber eval engagement for a tier 1 frontier model provider.[3][4][5][8][9][10][11]

Dreadnode on the record

Sources

Dreadnode full record

  1. [1]Dreadnode v2 security agent infrastructure platformDreadnode · dreadnode.io · published March 24, 2026 · Tier A
  2. [2]dreadnode.ioDreadnode · dreadnode.io · undated page, accessed November 6, 2026 · Tier A
  3. [3]Dreadnode — AI Infrastructure for CybersecurityDreadnode · undated page, accessed November 10, 2026 · Tier A
  4. [4]The Dreadnode PlatformDreadnode · undated page, accessed November 10, 2026 · Tier A
  5. [5]Pricing | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A
  6. [6]Credits | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A
  7. [7]Secrets | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A
  8. [8]Organizations | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A
  9. [9]Workspaces | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A
  10. [10]Projects | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A
  11. [11]Beyond the Terminal: Offensive Security Evals for Embodied Reasoning | DreadnodeDreadnode · undated page, accessed November 10, 2026 · Tier A

Promptfoo full record

  1. [1]PressPromptfoo · promptfoo.dev · undated page, accessed November 4, 2026 · Tier A
  2. [2]promptfoo.devPromptfoo · promptfoo.dev · undated page, accessed November 4, 2026 · Tier A
  3. [3]About Promptfoo | AI Security Experts | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  4. [4]Build Secure AI Applications | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  5. [5]Pricing | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  6. [6]Setting up Promptfoo with CircleCI | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  7. [7]Testing prompts with Jest and Vitest | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  8. [8]Finding LLM Jailbreaks with Burp Suite | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  9. [9]SharePoint Integration | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  10. [10]Langfuse integration | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  11. [11]AI Security for Real Estate | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  12. [12]OpenAI acquires Promptfoo to secure its AI agents | TechCrunchTechCrunch · published March 9, 2026 · Tier B
  13. [13]OpenAI Buying AI Security Startup Promptfoo to Safeguard AI Agents - BloombergBloomberg · published March 9, 2026 · Tier B

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