CISO Tribune

Vendor comparison · 2 companies

AIShield vs Promptfoo

AIShield provides security for AI/ML models and GenAI applications, addressing vulnerabilities like prompt injections, jailbreaks and data leaks. Promptfoo builds open-source tools for secure, reliable AI applications. CISO Tribune files both under AI model and agent security and AI firewalls and guardrails. 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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  • AIShield
  • Promptfoo
AIShield vs Promptfoo: Products, Customers and Funding Compared
AIShieldAIShield provides security for AI/ML models and GenAI applications, addressing vulnerabilities like prompt injections, jailbreaks and data leaks.boschaishield.comPromptfooPromptfoo builds open-source tools for secure, reliable AI applications.promptfoo.dev
What it sells
  • AIShield AISpectraScans AI/ML models and notebooks and performs red teaming of ML and LLM systems to find vulnerabilities such as adversarial attacks, model theft, data poisoning, prompt injections and jailbreaks.
  • AIShield Guardian ML FirewallDetects and mitigates adversarial threats such as extraction, evasion and poisoning against deployed machine learning applications, integrating with tools like Splunk and Sentinel.
  • AIShield Guardian GenAI GuardrailsFilters inputs and outputs of generative AI applications and LLMs to mitigate prompt injection, jailbreaks, sensitive data exposure and bias, with PII anonymization.
  • 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
From its own pages, AIShield designs AISpectra for security and product teams, and AISpectra uncovers vulnerabilities like prompt injections and jailbreaks. AISpectra is designed for developers and security teams and integrates into their workflows. AISpectra is tailored for Security, MLOps and Data Science teams. Guardian is aimed at organisations deploying LLM-powered chatbots, algorithmic trading models or AI-driven automation systems. Guardian supports cloud, hybrid and on-premises deployments, including SaaS and Bring Your Own Cloud.Not written yet
Last verified
October 28, 2026November 4, 2026

Where they overlap

  • AI model and agent security is the primary category of both AIShield and Promptfoo; both are also filed under AI firewalls and guardrails.

Where they differ, field by field

  • AIShield is also filed under AI governance. Promptfoo is also filed under Static application security testing and Breach simulation and automated pen-testing.
  • AIShield lists AIShield AISpectra, AIShield Guardian ML Firewall and AIShield Guardian GenAI Guardrails. 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 AIShield under AI model and agent security, AI firewalls and guardrails, and AI governance, with AI model and agent security as its primary category. CISO Tribune files Promptfoo under AI model and agent security, AI firewalls and guardrails, Static application security testing, and Breach simulation and automated pen-testing, also with AI model and agent security as primary. Both companies sell red teaming of AI systems, though AIShield also sells runtime protection while Promptfoo sells evaluations that run in CI workflows.

AIShield sells AISpectra, which scans models and notebooks and red teams ML and LLM systems, plus Guardian ML Firewall and Guardian GenAI Guardrails for deployed applications. Guardian GenAI Guardrails filters inputs and outputs of generative AI applications, with PII anonymization. AIShield sends attack telemetry to SIEM and SOAR tools such as Splunk and Microsoft Sentinel, and it is available on the AWS and Azure marketplaces. Promptfoo sells Red Teaming, which creates thousands of context-aware attacks tailored to the customer's application, and Evaluations, which can be integrated into a CircleCI pipeline. Its open-source Community version includes up to 10k probes per month at no charge, and enterprise customers can purchase additional probes. Promptfoo also offers real estate plugins that map reports to Fair Housing Act and ECOA requirements.

Promptfoo is headquartered in San Francisco, United States, was founded in 2024, and is owned by OpenAI. OpenAI announced the acquisition on March 9, 2026. Promptfoo says its contributors come from companies like OpenAI, Google, Microsoft, and Amazon. AIShield states its product rests on research over four years and over 45 patents.

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 AIShield and Promptfoo

What do AIShield and Promptfoo sell?
AIShield sells AIShield AISpectra, AIShield Guardian ML Firewall and AIShield Guardian GenAI Guardrails. Promptfoo sells Red Teaming and Evaluations.
Are AIShield and Promptfoo in the same category?
Yes. AI model and agent security is the primary category of both on CISO Tribune.
Where are AIShield and Promptfoo headquartered?
Promptfoo is headquartered in San Francisco, United States.
When were AIShield and Promptfoo founded?
Promptfoo was founded in 2024.
Who owns AIShield and Promptfoo?
Promptfoo is owned by OpenAI.
Who are AIShield and Promptfoo sold to?
From its own pages, AIShield designs AISpectra for security and product teams, and AISpectra uncovers vulnerabilities like prompt injections and jailbreaks.
What have AIShield 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 AIShield

AIShield provides security for AI/ML models and GenAI applications, addressing vulnerabilities like prompt injections, jailbreaks and data leaks. AIShield is a full-stack security product, based on technical research over four years and over 45 patents, that defends AI-based application workloads across on-prem, cloud and edge environments. AISpectra is designed to keep AI/ML models and LLM applications secure throughout development. AISpectra covers AI models and LLM applications at every stage, from development to testing and training. AIShield Guardian is designed to provide real-time security to live AI/ML and Generative AI applications.[2][3][4][6][8][10]

AIShield states that traditional security measures fail to address AI-specific risks like adversarial attacks and data leakage. AIShield states that after deployment, the lack of an AI Firewall and real-time monitoring leaves AI models and LLM applications vulnerable to threats including prompt injection and data leakages. Guardian offers protection for deployments of LLM-powered chatbots, algorithmic trading models and AI-driven automation systems.[4]

AISpectra automates model and notebook discovery and performs vulnerability assessments for AI supply chain security. AISpectra is an AI model scanner that provides discovery and vulnerability assessment for AI systems. AISpectra scans repositories to identify models, notebooks and artifacts. AISpectra protects against embedded malicious code, outdated or unsafe libraries and PIIs. AISpectra identifies issues such as hardcoded secrets, model serialization attacks and unsafe operations. AISpectra offers customizable scanning policies to align with organizational security standards. AISpectra tracks repository changes for version control. AISpectra supports third-party and proprietary models. AISpectra generates reports tied to industry benchmarks like OWASP and MITRE ATLAS.[1][2][4][6]

AISpectra performs automated red teaming for ML, uncovering vulnerabilities like adversarial attacks, model theft and data poisoning. AISpectra uses real-time simulations and detailed reports to secure AI assets throughout the ML development lifecycle. AISpectra maps AI models, pipelines and artifacts. AISpectra detects risks like model theft, evasion attacks and inference vulnerabilities. AISpectra applies automated red teaming to LLM security, uncovering vulnerabilities like prompt injections and jailbreaks. AISpectra employs static and dynamic queries, including human-crafted prompts, to uncover vulnerabilities. AISpectra uses a library of over 50,000 attack scenarios. AISpectra covers adversarial and non-adversarial scenarios, from prompt injections to data leakage. AISpectra assigns a threat posture score, categorizes vulnerabilities by severity and provides recommendations. AISpectra ties vulnerabilities to frameworks like MITRE ATLAS, OWASP and the EU AI Act.[1][2][4][7][8]

AISpectra is offered as SaaS, in the customer cloud or on-premises, with features like SSO and data retention. AISpectra works on AIShield Cloud (SaaS), on customer cloud instances or in on-premise environments. AISpectra integrates with a cloud-based UI, API and CI/CD pipelines and produces customizable reports in JSON or SARIF format. AISpectra provides dashboards that categorize attacks by severity and give actionable steps. AISpectra supports OWASP, MITRE ATLAS, the EU AI Act and NIST guidelines for regulatory standards.[4][7]

AIShield is available on the AWS and Azure marketplaces. AIShield vulnerability scanning covers attacks such as theft, poisoning, evasion and inference for computer vision, tabular classification and time-series forecasting models, with APIs and dashboards. AIShield supports 200+ attack types across 20+ types of models and data type variations. AIShield provides an SDK and APIs that integrate into ML workflows such as AWS Sagemaker and Azure ML. AIShield integrates with monitoring platforms like WhyLabs and confidential computing platforms like Fortanix. AIShield sends attack telemetry to SIEM/SOAR tools like Splunk and Microsoft Sentinel through preconfigured connectors. AIShield provides reference implementations with a python SDK.[3]

Guardian ML Firewall detects and mitigates adversarial threats like extraction, evasion and poisoning against Machine Learning applications. Guardian provides runtime security for Machine Learning (ML) applications and acts as a firewall against adversarial threats. Guardian ML Firewall generates threat-informed defenses and simulates attacks. Guardian ML Firewall monitors for threats in real time and mitigates risks automatically without interrupting workflows. Guardian ML Firewall keeps input-output data pipelines untampered by blocking malicious manipulations. Guardian ML Firewall integrates with Splunk, IBM QRadar, MS Sentinel and Amazon Security Lake for centralized monitoring and threat hunting. Guardian provides continuous security for ML deployments across cloud and edge environments.[1][2][9]

Guardian provides security for Generative AI (GenAI) applications and LLMs, mitigating risks like prompt injection attacks, jailbreaks and sensitive data exposure. Guardian safeguards AI inputs and outputs with customizable content controls, including bias detection and PII anonymization. Guardian supports 75+ configurable policies, including topic filtering and compliance with PII regulations. Guardian blocks prompt injection, detects invisible text and redacts sensitive information dynamically. Guardian blocks toxic language, competitor mentions and sensitive information. Guardian configures and enforces role-specific access controls and content guidelines. Guardian tracks API interactions, identifying and mitigating risks as they occur. Guardian operates in Audit Mode (Out-of-Band), for monitoring without affecting traffic flow to the target LLM, and in Block Mode (In-Sync), for real-time protection with traffic orchestration. Guardian covers text and image-based inputs and outputs. Guardian integrates with orchestration frameworks like CrewAI, Phidata and Microsoft Autogen for AI-driven workflows. Guardian connects with SIEM tools like Splunk, IBM QRadar and Microsoft Sentinel. Guardian supports cloud, hybrid and on-premises deployments, including SaaS and Bring Your Own Cloud (Docker, Kubernetes). Guardian receives automatic updates for SaaS deployments and monthly updates for self-hosted environments, with disaster recovery support and configurable RTO and RPO.[1][3][6][7][9][10]

AIShield on the record

Sources

AIShield full record

  1. [1]boschaishield.comAIShield · boschaishield.com · undated page, accessed October 28, 2026 · Tier A
  2. [2]AIShield | Leading Gartner-Recognized AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  3. [3]Secure Your AI Models: AIShield AISpectra | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  4. [4]AISpectra – Advanced AI/ML Security with Automated Discovery, Scanning & Compliance | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  5. [5]AIShield Guardian – Advanced Security for Generative AI & ML Models, Real-Time Protection | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  6. [6]AISpectra AI Model Scanner - Secure, Scan, and Scale AI Systems | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  7. [7]AISpectra ML Red Teaming – Secure Your ML Systems with Advanced AI Security and Adversarial Attack Testing. | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  8. [8]Secure LLMs with AISpectra LLM Red Teaming - Automated LLM Threat Defense | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  9. [9]AIShield Guardian – ML Firewall | Real-Time Defense for ML Applications | AI Security SolutionsAIShield · undated page, accessed November 10, 2026 · Tier A
  10. [10]Secure Your Generative AI with AIShield Guardian - Advanced Guardrails & Real-Time Monitoring | AI Security SolutionsAIShield · 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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