--- title: "ps-fuzz vs frai" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/prompt-security-ps-fuzz-vs-sebuzdugan-frai" tools: ["prompt-security-ps-fuzz", "sebuzdugan-frai"] --- # ps-fuzz vs frai *GraphCanon updated Aug 9, 2026* ## Verdict Pick ps-fuzz when ps-fuzz is primarily Python; frai is JavaScript; pick frai when frai is primarily JavaScript; ps-fuzz is Python. [ps-fuzz](https://www.prompt.security/fuzzer) reports 702 GitHub stars, 102 forks, and 20 open issues, last pushed Feb 16, 2026. [frai](https://frai.cc/) has 53 stars, 4 forks, and 0 open issues, last pushed Aug 5, 2026. Figures are from public GitHub metadata via [ps-fuzz's repository](https://github.com/prompt-security/ps-fuzz) and [frai's repository](https://github.com/sebuzdugan/frai). | | [ps-fuzz](/tools/prompt-security-ps-fuzz.md) | [frai](/tools/sebuzdugan-frai.md) | | --- | --- | --- | | Tagline | Test and harden system prompts for GenAI apps to ensure safety and security. | A toolkit for responsible AI development that generates model cards, risk assessments, and evals via CLI and SDK. | | Stars | 702 | 53 | | Forks | 102 | 4 | | Open issues | 20 | 0 | | Language | Python | JavaScript | | Adopt for | - | frai is an open-source toolkit that uses CLI and SDK to scan code for responsible AI development purposes, generating model cards, risk assessments, and evaluations. | | Persona | - | - | | Runtime | - | - | | License | MIT | MIT | | Categories | Developer Tools, Evaluation & Observability | Developer Tools, Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ps-fuzz](/tools/prompt-security-ps-fuzz.md) | [frai](/tools/sebuzdugan-frai.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Very active (96%) | | Days since push | 169d | 3d | | Open issues (now) | 20 | 0 | | Owner type | Organization | User | | Full report | [trust report](/tools/prompt-security-ps-fuzz/trust.md) | [trust report](/tools/sebuzdugan-frai/trust.md) | ## Decision facts: frai - **Adopt for:** frai is an open-source toolkit that uses CLI and SDK to scan code for responsible AI development purposes, generating model cards, risk assessments, and evaluations. ## Choose when ### Choose ps-fuzz if… - ps-fuzz is primarily Python; frai is JavaScript. - Tags unique to ps-fuzz: ai-fuzzer, fuzzer, generative-ai, llm-fuzzer. - When you need to methodically test system prompts in generative AI applications for potential security flaws. ### Choose frai if… - frai is primarily JavaScript; ps-fuzz is Python. - Tags unique to frai: ai-compliance, audit, bias, evaluation. - Use when you need to comply with specific safety standards in AI projects using JavaScript framework. ## When NOT to use ps-fuzz - If your project does not involve generative AI applications or does not require prompt testing for security reasons. - For tasks unrelated to the hardening and evaluation of system prompts, as ps-fuzz is specifically designed for this purpose. ## When NOT to use frai - Avoid if your development environment strictly requires non-JavaScript languages for tool integration. - Not advisable if automated governance and scanning tools are not aligned with organizational compliance policies. ## Common questions ### What is the difference between ps-fuzz and frai? ps-fuzz: Test and harden system prompts for GenAI apps to ensure safety and security.. frai: A toolkit for responsible AI development that generates model cards, risk assessments, and evals via CLI and SDK.. See the comparison table for live GitHub stats and shared categories. ### When should I choose ps-fuzz over frai? Choose ps-fuzz over frai when ps-fuzz is primarily Python; frai is JavaScript; Tags unique to ps-fuzz: ai-fuzzer, fuzzer, generative-ai, llm-fuzzer; When you need to methodically test system prompts in generative AI applications for potential security flaws. ### When should I choose frai over ps-fuzz? Choose frai over ps-fuzz when frai is primarily JavaScript; ps-fuzz is Python; Tags unique to frai: ai-compliance, audit, bias, evaluation; Use when you need to comply with specific safety standards in AI projects using JavaScript framework. ### When should I avoid ps-fuzz? If your project does not involve generative AI applications or does not require prompt testing for security reasons. For tasks unrelated to the hardening and evaluation of system prompts, as ps-fuzz is specifically designed for this purpose. ### When should I avoid frai? Avoid if your development environment strictly requires non-JavaScript languages for tool integration. Not advisable if automated governance and scanning tools are not aligned with organizational compliance policies. ### Is ps-fuzz or frai more popular on GitHub? ps-fuzz has more GitHub stars (702 vs 53). Stars measure visibility, not whether either tool fits your constraints. ### Are ps-fuzz and frai open source? Yes - both are open-source projects on GitHub (ps-fuzz: MIT, frai: MIT). ### Where can I find alternatives to ps-fuzz or frai? GraphCanon lists graph-backed alternatives at [ps-fuzz alternatives](/tools/prompt-security-ps-fuzz/alternatives) and [frai alternatives](/tools/sebuzdugan-frai/alternatives) ([ps-fuzz markdown twin](/tools/prompt-security-ps-fuzz/alternatives.md), [frai markdown twin](/tools/sebuzdugan-frai/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/prompt-security-ps-fuzz-vs-sebuzdugan-frai.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ps-fuzz or frai? ps-fuzz: Slowing. frai: 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 ps-fuzz and frai? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ps-fuzz trust report](/tools/prompt-security-ps-fuzz/trust); [frai trust report](/tools/sebuzdugan-frai/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=prompt-security-ps-fuzz`](/api/graphcanon/graph?tool=prompt-security-ps-fuzz) - 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/_