--- title: "PROMPTPurify vs AI-Infra-Guard" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/securelayer7-promptpurify-vs-tencent-ai-infra-guard" tools: ["securelayer7-promptpurify", "tencent-ai-infra-guard"] --- # PROMPTPurify vs AI-Infra-Guard *GraphCanon updated Aug 9, 2026* ## Verdict Pick PROMPTPurify if pROMPTPurify, licensed under MIT, provides an ai-safety solution with a focus on jailbreak-detection and prompt-injection-protection for LLM applications without relying on regex or signatures; pick AI-Infra-Guard if aI-Infra-Guard is designed for organizations looking to secure their AI infrastructures comprehensively through various scanning and evaluation tools. [PROMPTPurify](https://anton.securelayer7.net) reports 75 GitHub stars, 20 forks, and 0 open issues, last pushed May 31, 2026. [AI-Infra-Guard](https://tencent.github.io/AI-Infra-Guard/) has 4.3k stars, 419 forks, and 13 open issues, last pushed Jul 28, 2026. Figures are from public GitHub metadata via [PROMPTPurify's repository](https://github.com/securelayer7/PROMPTPurify) and [AI-Infra-Guard's repository](https://github.com/Tencent/AI-Infra-Guard). | | [PROMPTPurify](/tools/securelayer7-promptpurify.md) | [AI-Infra-Guard](/tools/tencent-ai-infra-guard.md) | | --- | --- | --- | | Tagline | Prompt-injection guardrail for LLM applications | A full-stack AI Red Teaming platform securing AI ecosystems | | Stars | 75 | 4,316 | | Forks | 20 | 419 | | Open issues | 0 | 13 | | Language | TypeScript | Python | | Adopt for | PROMPTPurify, licensed under MIT, provides an ai-safety solution with a focus on jailbreak-detection and prompt-injection-protection for LLM applications without relying on regex or signatures. | AI-Infra-Guard is designed for organizations looking to secure their AI infrastructures comprehensively through various scanning and evaluation tools. | | Persona | - | - | | Runtime | - | - | | License | MIT | Apache-2.0 | | Categories | Evaluation & Observability, LLM Frameworks | Evaluation & Observability, LLM Frameworks | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [PROMPTPurify](/tools/securelayer7-promptpurify.md) | [AI-Infra-Guard](/tools/tencent-ai-infra-guard.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Very active (96%) | | Days since push | 70d | 0d | | Open issues (now) | 0 | 13 | | Full report | [trust report](/tools/securelayer7-promptpurify/trust.md) | [trust report](/tools/tencent-ai-infra-guard/trust.md) | ## Decision facts: PROMPTPurify - **Pricing:** freemium - The SDK and model weights of PROMPTPurify come under the MIT license, allowing free usage. However, the full extent of features or services might require a premium setup. - **Requirements:** - This tool is built with TypeScript.; - Ensure familiarity with TypeScript for efficient integration. - **Adopt for:** PROMPTPurify, licensed under MIT, provides an ai-safety solution with a focus on jailbreak-detection and prompt-injection-protection for LLM applications without relying on regex or signatures. ## Decision facts: AI-Infra-Guard - **Adopt for:** AI-Infra-Guard is designed for organizations looking to secure their AI infrastructures comprehensively through various scanning and evaluation tools. ## Choose when ### Choose PROMPTPurify if… - PROMPTPurify is primarily TypeScript; AI-Infra-Guard is Python. - License: PROMPTPurify is MIT, AI-Infra-Guard is Apache-2.0. - Pricing: The SDK and model weights of PROMPTPurify come under the MIT license, allowing free usage. However, the full extent of features or services might require a premium setup.. - Requirements: - This tool is built with TypeScript.; - Ensure familiarity with TypeScript for efficient integration.. - Tags unique to PROMPTPurify: ai safety, ai-firewall, ai-security, application-security. - - When you require compact model solutions that outperform larger open-source guards. ### Choose AI-Infra-Guard if… - AI-Infra-Guard is primarily Python; PROMPTPurify is TypeScript. - License: AI-Infra-Guard is Apache-2.0, PROMPTPurify is MIT. - Tags unique to AI-Infra-Guard: agent-security, ai-red-teaming, llm-evaluation, security-tools. - AI-Infra-Guard ships Docker support for self-hosted deployment. - If you need advanced LLM jailbreak evaluation capabilities specific to the vulnerabilities identified by Tencent's research, consider using AI-Infra-Guard. ## When NOT to use PROMPTPurify - - Avoid using PROMPTPurify if your project requires regex or signature-based methods for security purposes, as this tool does not support them. - - Do not use it if you are looking for comprehensive AI-security solutions that extend beyond prompt injection and jailbreak detection. ## When NOT to use AI-Infra-Guard - Avoid if you are looking exclusively for a tool that focuses solely on the runtime behavior of LLMs without broader infrastructural scanning capabilities. - Not recommended when your primary focus is on network-level security rather than comprehensive AI infrastructure security assessments and evaluations. ## Common questions ### What is the difference between PROMPTPurify and AI-Infra-Guard? PROMPTPurify: Prompt-injection guardrail for LLM applications. AI-Infra-Guard: A full-stack AI Red Teaming platform securing AI ecosystems. See the comparison table for live GitHub stats and shared categories. ### When should I choose PROMPTPurify over AI-Infra-Guard? Choose PROMPTPurify over AI-Infra-Guard when PROMPTPurify is primarily TypeScript; AI-Infra-Guard is Python; License: PROMPTPurify is MIT, AI-Infra-Guard is Apache-2.0; Pricing: The SDK and model weights of PROMPTPurify come under the MIT license, allowing free usage. However, the full extent of features or services might require a premium setup.; Requirements: - This tool is built with TypeScript.; - Ensure familiarity with TypeScript for efficient integration.; Tags unique to PROMPTPurify: ai safety, ai-firewall, ai-security, application-security; - When you require compact model solutions that outperform larger open-source guards. ### When should I choose AI-Infra-Guard over PROMPTPurify? Choose AI-Infra-Guard over PROMPTPurify when AI-Infra-Guard is primarily Python; PROMPTPurify is TypeScript; License: AI-Infra-Guard is Apache-2.0, PROMPTPurify is MIT; Tags unique to AI-Infra-Guard: agent-security, ai-red-teaming, llm-evaluation, security-tools; AI-Infra-Guard ships Docker support for self-hosted deployment; If you need advanced LLM jailbreak evaluation capabilities specific to the vulnerabilities identified by Tencent's research, consider using AI-Infra-Guard. ### When should I avoid PROMPTPurify? - Avoid using PROMPTPurify if your project requires regex or signature-based methods for security purposes, as this tool does not support them. - Do not use it if you are looking for comprehensive AI-security solutions that extend beyond prompt injection and jailbreak detection. ### When should I avoid AI-Infra-Guard? Avoid if you are looking exclusively for a tool that focuses solely on the runtime behavior of LLMs without broader infrastructural scanning capabilities. Not recommended when your primary focus is on network-level security rather than comprehensive AI infrastructure security assessments and evaluations. ### Is PROMPTPurify or AI-Infra-Guard more popular on GitHub? AI-Infra-Guard has more GitHub stars (4,316 vs 75). Stars measure visibility, not whether either tool fits your constraints. ### Are PROMPTPurify and AI-Infra-Guard open source? Yes - both are open-source projects on GitHub (PROMPTPurify: MIT, AI-Infra-Guard: Apache-2.0). ### Where can I find alternatives to PROMPTPurify or AI-Infra-Guard? GraphCanon lists graph-backed alternatives at [PROMPTPurify alternatives](/tools/securelayer7-promptpurify/alternatives) and [AI-Infra-Guard alternatives](/tools/tencent-ai-infra-guard/alternatives) ([PROMPTPurify markdown twin](/tools/securelayer7-promptpurify/alternatives.md), [AI-Infra-Guard markdown twin](/tools/tencent-ai-infra-guard/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/securelayer7-promptpurify-vs-tencent-ai-infra-guard.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, PROMPTPurify or AI-Infra-Guard? PROMPTPurify: Steady. AI-Infra-Guard: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for PROMPTPurify and AI-Infra-Guard? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [PROMPTPurify trust report](/tools/securelayer7-promptpurify/trust); [AI-Infra-Guard trust report](/tools/tencent-ai-infra-guard/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=securelayer7-promptpurify`](/api/graphcanon/graph?tool=securelayer7-promptpurify) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_