What products does Promptfoo sell?

Promptfoo sells Promptfoo Guardrails, Promptfoo MCP Proxy, Promptfoo LLM Vulnerability Scanner, and Promptfoo Code Scanning / GitHub Action.

Promptfoo

AI SecuritySan Francisco, United Statesfounded 2024acquired by OpenAIpromptfoo.dev ↗

Promptfoo is a cybersecurity company specializing in AI Security, founded in 2024 and headquartered in San Francisco, United States. It has raised $23.4M in equity across 2 priced rounds, employs about 3 people, and was acquired by OpenAI in 2026.

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updated Oct 11, 2026

Latest Promptfoo news and company activity

What Promptfoo did, dated — selected moves from the record, one per kind, newest first.

Mar 2026AcquiredOpenAI to acquire Promptfoo
Dec 2025PartnershipPromptfoo is now in the AWS Solutions Library
Oct 2025Product launchIntroducing Promptfoo++, a codeless platform for LLM
Jul 2025Funding roundPromptfoo Raises $18.4 Million Series A to Build Definitive AI Security Stack

Promptfoo products

Promptfoo funding

Promptfoo has raised $23.4M in priced equity. Its most recent round was a Series A in July 2025.

Equity raised: $23.4M2 priced rounds
Last round: Series AJul 2025

View the complete funding history

Promptfoo employees and hiring

Promptfoo has about 3 employees.

Employees: 3
Open roles: 0

See hiring trends

Promptfoo competitors

Security professionals most often compare Promptfoo against Realm Labs, VotalAI, and Privado on cybersectools.com. 12 more are in the platform, with overlap scoring.

ranked by CybersecTools comparison demand, 90 days

View all 15 competitors with overlap scores

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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security
Competitorsfull set, overlap scored
Leadershipevery exec, with roles
Customersnamed publicly, with sources
Reviews & newssentiment, coverage, cadence

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Funding, round by round, with the investors
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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in AI Security

Common questions about Promptfoo.

How much funding has Promptfoo raised?: Promptfoo has raised $23.4M in priced equity. Its most recent round was a Series A in July 2025.
How many people work at Promptfoo?: Promptfoo has about 3 employees.
Who are Promptfoo's competitors?: Security professionals most often compare Promptfoo against Realm Labs, VotalAI, and Privado on cybersectools.com. 12 more are in the platform, with overlap scoring.
What does Promptfoo do?: Promptfoo is a cybersecurity company specializing in AI Security, founded in 2024 and headquartered in San Francisco, United States.
What products does Promptfoo sell?: Promptfoo sells Promptfoo Guardrails, Promptfoo MCP Proxy, Promptfoo LLM Vulnerability Scanner, and Promptfoo Code Scanning / GitHub Action.