vigil-llm vs promptfoo

Common questions

What is the difference between vigil-llm and promptfoo?

vigil-llm: Detect prompt injections and other risky inputs in LLMs. promptfoo: Test prompts, agents, and RAGs. Compare performance of various LLMs.. See the comparison table for live GitHub stats and shared categories.

When should I choose vigil-llm over promptfoo?

Choose vigil-llm over promptfoo when vigil-llm is primarily Python; promptfoo is TypeScript; License: vigil-llm is Apache-2.0, promptfoo is MIT; Vigil and PromptFoo both evaluate LLM inputs, but they do so from different perspectives: security vs. quality/red-teaming; Tags unique to vigil-llm: adversarial-attacks, large-language-models, llm-security, prompt-injection; When deploying large language models that require high levels of input security, vigil-llm can be employed to detect maliciously crafted inputs intended to manipulate model behavior.

When should I choose promptfoo over vigil-llm?

Choose promptfoo over vigil-llm when promptfoo is primarily TypeScript; vigil-llm is Python; License: promptfoo is MIT, vigil-llm is Apache-2.0; Requirements: Requires Node.js >=22.22.0, with Node.js 24 LTS recommended.; API keys for most LLM providers are required and should be set as environment variables.; Vigil and PromptFoo both evaluate LLM inputs, but they do so from different perspectives: security vs. quality/red-teaming; Tags unique to promptfoo: ci, ci-cd, cicd, evaluation; When you need to compare the performance of various LLMs such as GPT, Claude, Gemini, DeepSeek, and more.

When should I avoid vigil-llm?

If your application does not require high security against malicious inputs or if the risks of prompt injection are minimal due to controlled input sources, vigil-llm might be unnecessary. For projects that focus on optimizing output speed rather than input robustness, other tools might be more appropriate as vigil-llm could add significant processing overhead.

When should I avoid promptfoo?

If you are working with languages other than TypeScript, as Promptfoo is specifically designed for TypeScript environments. When you do not need to compare multiple LLMs and only require a simple prompt testing tool without advanced features like red teaming.

Is vigil-llm or promptfoo more popular on GitHub?

promptfoo has more GitHub stars (25,251 vs 496). Stars measure visibility, not whether either tool fits your constraints.

Are vigil-llm and promptfoo open source?

Yes - both are open-source projects on GitHub (vigil-llm: Apache-2.0, promptfoo: MIT).

Where can I find alternatives to vigil-llm or promptfoo?

GraphCanon lists graph-backed alternatives at vigil-llm alternatives and promptfoo alternatives (vigil-llm markdown twin, promptfoo markdown twin), 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 mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.

Which is better maintained, vigil-llm or promptfoo?

vigil-llm: Dormant. promptfoo: 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 vigil-llm and promptfoo?

GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: vigil-llm trust report; promptfoo trust report.