CISO Tribune

Vendor comparison · 2 companies

Neo vs Promptfoo

Neo sells security for AI and agentic software across every endpoint, SaaS app, and cloud service. Promptfoo builds open-source tools for secure, reliable AI applications. CISO Tribune files both under AI model and agent security. 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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  • Neo
  • Promptfoo
Neo vs Promptfoo: Products, Customers and Funding Compared
NeoNeo sells security for AI and agentic software across every endpoint, SaaS app, and cloud service.neo.aiPromptfooPromptfoo builds open-source tools for secure, reliable AI applications.promptfoo.dev
What it sells
  • Neo Node[3][5][6]Enforces policy on the laptop, on macOS, Windows, and Linux. Decides each agent action with allow, ask, or block.
  • Neo Console[6]Starts from a customer's organization and its teams, taken from the identity provider.
  • Neoverse[1][3][5][6]The intelligence layer for AI apps and tools.
  • 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
Privately held[3]Owned by OpenAI[12]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • July 20, 2026Neo emerged from stealth with $100 million in funding from Andreessen Horowitz, Bessemer Venture Partners, Craft Ventures and Merlin Ventures.[7]
  • 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
From its own pages, the company sells mainly to organisations that need to know which AI agents run on their fleet and what each one can reach. Neo describes examples from a healthcare SaaS company and a fintech. Neo Node deploys through an MDM that the customer already runs. Neo Console takes the organization and its teams from the customer's identity provider. Neo enforces policy on laptops running macOS, Windows, and Linux, and extends the same policy to SaaS apps and cloud deployments.Not written yet
Last verified
November 9, 2026November 4, 2026

Where they overlap

  • AI model and agent security is the primary category of both Neo and Promptfoo.

Where they differ, field by field

  • Neo is also filed under Workforce AI usage security, AI governance and Software supply chain security. Promptfoo is also filed under AI firewalls and guardrails, Static application security testing and Breach simulation and automated pen-testing.
  • Neo lists Neo Node, Neo Console and Neoverse. Promptfoo lists Red Teaming and Evaluations.
  • Promptfoo is headquartered in San Francisco, United States.
  • Promptfoo was founded in 2024.
  • Neo is privately held. Promptfoo is owned by OpenAI.

What it sells: Neo

What Neo Node does[3][5][6]
Neo Node deploys through the MDM a customer already runs, with no kernel module and no reboot. Neo Node reads the whole session rather than only the command. Inside Claude Code, Neo Node reads the model, MCP servers, skills and plugins that Claude Code loads.
What Neoverse does[1][3][5][6]
Neoverse checks every extension, package, skill, and MCP server before it runs. Neoverse rates an unsigned server loaded by an agent as Unsafe on first sight.

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 Neo and Promptfoo

What do Neo and Promptfoo sell?
Neo sells Neo Node, Neo Console and Neoverse. Promptfoo sells Red Teaming and Evaluations.
Are Neo and Promptfoo in the same category?
Yes. AI model and agent security is the primary category of both on CISO Tribune.
Where are Neo and Promptfoo headquartered?
Promptfoo is headquartered in San Francisco, United States.
When were Neo and Promptfoo founded?
Promptfoo was founded in 2024.
Who owns Neo and Promptfoo?
Neo is privately held. Promptfoo is owned by OpenAI.
Who are Neo and Promptfoo sold to?
From its own pages, the company sells mainly to organisations that need to know which AI agents run on their fleet and what each one can reach.
What have Neo and Promptfoo announced recently?
July 20, 2026: Neo emerged from stealth with $100 million in funding from Andreessen Horowitz, Bessemer Venture Partners, Craft Ventures and Merlin Ventures. March 9, 2026: OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.

About Neo

Neo sells security for AI and agentic software across every endpoint, SaaS app, and cloud service. Neo sees every AI agent, app, extension, skill, and MCP server on devices, in browsers, and across SaaS apps and cloud, checks its configuration, and enforces policy before any action runs. Neo maps an organization's teams, people, endpoints, agents, MCP servers, skills, and everything they reach.[2][4][5]

Neo addresses a situation in which few teams can say which agents run on their fleet, what each one can reach, or what it did yesterday. Neo describes agents as acting with the employee's own access, so that most tools see the employee. Neo describes code, keys, and customer data reaching AI through prompts, pastes, uploads, and agent reads, with some tools training on what they receive. Neo describes MCP servers, skills, subagents, plugins, and extensions as arriving faster than anyone can review them, with already approved apps shipping new AI features without a review.[5]

Neo Node enforces policy on the laptop, on macOS, Windows, and Linux. Neo Node deploys through the MDM a customer already runs, with no kernel module and no reboot, and decides each agent action with allow, ask, or block. Neo works as a layer inside the tool, in user land with no kernel component, where Neo sees the agent's actions and decides before they run. Inside Claude Code, Neo Node reads the model, MCP servers, skills and plugins that Claude Code loads. Neo Node reads the whole session rather than only the command. On managed endpoints, the hooks of Neo keep running if switched off and come back if deleted. Neo enforces before the action runs, at the tool call in tools with a Neo connector and at launch for the rest.[5][6]

Neo Console starts from a customer's organization and its teams, taken from the identity provider. Neo Console finds settings that give an agent more reach than its work needs. Neo inventories every AI app, agent, and MCP server on each device, scopes what each can touch, and decides each action before it runs. Neo inventories every AI tool and model on devices, browsers, and SaaS, sanctioned or not, with owner, version, and publisher. Neo checks each tool's setup and version and flags drift from a customer's baseline. Neo decides every prompt, tool call, file access, and network request on the device before it runs.[4][5][6]

Neoverse is the intelligence layer for AI apps and tools, and Neoverse is publicly available. Neoverse checks every extension, package, skill, and MCP server before it runs, and Neo blocks a hijacked or malicious release fleet-wide. Neoverse rates an unsigned server loaded by an agent as Unsafe on first sight. Neoverse rates as Malicious an MCP server that copies session memory to an outside store its listing never names, and Neo blocks it by policy when the agent loads it. Neo inspects data on the device before it reaches an AI tool, stops it or points the person to the approved tool, and flags tools set to train on a customer's data.[5][6]

Neo covers ChatGPT, Claude, Gemini, Copilot, Salesforce, and every other AI app that teams sign into, with work and personal accounts kept separate. Amazon Bedrock, Cursor Cloud, GitHub Actions, and n8n sit under the same policy as the laptop. A single killswitch in Neo ends every active AI agent session in the estate, and no new session can start until the switch is lifted. Neo can end every session, running or new, the moment several agents break from normal behavior at once. Neo follows the agent inside each tool on the endpoint and into the SaaS apps and cloud deployments it acts through, with one product and one policy for all AI security and control.[1][4][5][6]

Neo on the record

Sources

Neo full record

  1. [1]Neo launches with 100m to secure ai software across the enterpriseGlobeNewswire · globenewswire.com · published July 20, 2026 · Tier A
  2. [2]neo.aiNeo · neo.ai · undated page, accessed November 9, 2026 · Tier A
  3. [3]Neo | Secure AI. From Endpoint to EverywhereNeo · undated page, accessed November 11, 2026 · Tier A
  4. [4]Platform | NeoNeo · undated page, accessed November 11, 2026 · Tier A
  5. [5]Why Neo | AI Control Starts at the EndpointNeo · undated page, accessed November 11, 2026 · Tier A
  6. [6]How It Works | NeoNeo · undated page, accessed November 11, 2026 · Tier A
  7. [7]Neo Launches With $100M for AI Software SecurityNeo · published July 20, 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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