Comparison
Guardrails vs fast-llm-security-guardrails
Verdict
Pick Guardrails if guardrails offers an open-source toolkit from NVIDIA for programmers to set safety constraints in conversational systems built on large language models; pick fast-llm-security-guardrails if fast-llm-security-guardrails, also known as ZenGuard, is designed for the rapid deployment of security measures into AI agent systems to ensure they operate within defined trust constraints.
Markdown twin · Guardrails alternatives · fast-llm-security-guardrails alternatives
GraphCanon updated Sep 14, 2026
17views this month
vs
Trust & integrity
| Signal | Guardrails | fast-llm-security-guardrails |
|---|---|---|
| Maintenance | Very active (0d since push) As of Sep 11, 2026 · github_public_v1 | Slowing (222d since push) As of Sep 14, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 11, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 14, 2026 · github_public_v1 |
| OSV dependency advisories | No published findings from this source as of 2026-07-15 As of Jul 15, 2026 · osv@v1 | Published findings As of Jul 15, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- Guardrails
- Open-source toolkit for adding programmable guardrails to LLM-based conversational systems
- fast-llm-security-guardrails
- The fastest Trust Layer for AI Agents
Stars
- Guardrails
- 7.1k
- fast-llm-security-guardrails
- 155
Forks
- Guardrails
- 831
- fast-llm-security-guardrails
- 21
Open issues
- Guardrails
- 228
- fast-llm-security-guardrails
- 0
Language
- Guardrails
- Python
- fast-llm-security-guardrails
- Python
Adopt for
- Guardrails
- Guardrails offers an open-source toolkit from NVIDIA for programmers to set safety constraints in conversational systems built on large language models.
- fast-llm-security-guardrails
- fast-llm-security-guardrails, also known as ZenGuard, is designed for the rapid deployment of security measures into AI agent systems to ensure they operate within defined trust constraints.
Persona
- Guardrails
- -
- fast-llm-security-guardrails
- -
Runtime
- Guardrails
- -
- fast-llm-security-guardrails
- -
License
- Guardrails
- The Apache License, Version 2.0 allows for free use and modification provided that the original license is included in any distribution.
- fast-llm-security-guardrails
- MIT
Last pushed
- Guardrails
- Sep 10, 2026
- fast-llm-security-guardrails
- Feb 3, 2026
Categories
- Guardrails
- AI Agents, Evaluation & Observability
- fast-llm-security-guardrails
- AI Agents, Evaluation & Observability
Trust and health
Maintenance
- Guardrails
- Very active (96%)
- fast-llm-security-guardrails
- Slowing (36%)
Days since push
- Guardrails
- 0d
- fast-llm-security-guardrails
- 222d
Open issues (now)
- Guardrails
- 228
- fast-llm-security-guardrails
- 0
Stars delta
- Guardrails
- +206 (30d)
- fast-llm-security-guardrails
- +1 (30d)
Open issues delta
- Guardrails
- +23 (30d)
- fast-llm-security-guardrails
- 0 (30d)
OSV dependency advisories
- Guardrails
- No published findings from this source as of 2026-07-15
- fast-llm-security-guardrails
- Published findings
Full report
- Guardrails
- Trust report
- fast-llm-security-guardrails
- Trust report
Shared compatibility
- Python · Guardrails: Python runtime · fast-llm-security-guardrails: Python runtime
Choose Guardrails if…
- License: Guardrails is Other, fast-llm-security-guardrails is MIT.
- Requirements: Requires Python versions between 3.10 to 3.13..
- Tags unique to Guardrails: agents, generative-ai, guardrails, llm-safety.
- Guardrails ships Docker support for self-hosted deployment.
- You are working within the NVIDIA ecosystem and would benefit from its extensive support for AI applications.
When NOT to use Guardrails
- If your development does not leverage NVIDIA's technologies, using Guardrails may not provide the expected ease of integration.
- For projects that cannot use Python or require support outside of versions 3.10 to 3.13, this tool would be unsuitable.
Choose fast-llm-security-guardrails if…
- License: fast-llm-security-guardrails is MIT, Guardrails is Other.
- Tags unique to fast-llm-security-guardrails: agentic-ai, ai-agent, ai-agents, ai-runtime.
- Fast integration of privacy and security guardrails in environments where real-time evaluation and observability are critical.
When NOT to use fast-llm-security-guardrails
- If your project requires a more customizable solution than what fast-llm-security-guardrails offers in its out-of-the-box configurations.
- For teams that operate without established runtime environments like LangChain or LlamaIndex, as this may necessitate significant adaptation of ZenGuard.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (NVIDIA-NeMo/Guardrails) · observed Sep 11, 2026
- GitHub forks (NVIDIA-NeMo/Guardrails) · observed Sep 11, 2026
- Last push (NVIDIA-NeMo/Guardrails) · observed Sep 10, 2026
- License file (Other) · observed Sep 11, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (ZenGuard-AI/fast-llm-security-guardrails) · observed Sep 14, 2026
- GitHub forks (ZenGuard-AI/fast-llm-security-guardrails) · observed Sep 14, 2026
- Last push (ZenGuard-AI/fast-llm-security-guardrails) · observed Feb 3, 2026
- License file (MIT) · observed Sep 14, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: Guardrails 7.1k · fast-llm-security-guardrails 155 (synced Sep 11, 2026).
Common questions
- What is the difference between Guardrails and fast-llm-security-guardrails?
- Guardrails: Open-source toolkit for adding programmable guardrails to LLM-based conversational systems. fast-llm-security-guardrails: The fastest Trust Layer for AI Agents. See the comparison table for live GitHub stats and shared categories.
- When should I choose Guardrails over fast-llm-security-guardrails?
- Choose Guardrails over fast-llm-security-guardrails when License: Guardrails is Other, fast-llm-security-guardrails is MIT; Requirements: Requires Python versions between 3.10 to 3.13.; Tags unique to Guardrails: agents, generative-ai, guardrails, llm-safety; Guardrails ships Docker support for self-hosted deployment; You are working within the NVIDIA ecosystem and would benefit from its extensive support for AI applications.
- When should I choose fast-llm-security-guardrails over Guardrails?
- Choose fast-llm-security-guardrails over Guardrails when License: fast-llm-security-guardrails is MIT, Guardrails is Other; Tags unique to fast-llm-security-guardrails: agentic-ai, ai-agent, ai-agents, ai-runtime; Fast integration of privacy and security guardrails in environments where real-time evaluation and observability are critical.
- When should I avoid Guardrails?
- If your development does not leverage NVIDIA's technologies, using Guardrails may not provide the expected ease of integration. For projects that cannot use Python or require support outside of versions 3.10 to 3.13, this tool would be unsuitable.
- When should I avoid fast-llm-security-guardrails?
- If your project requires a more customizable solution than what fast-llm-security-guardrails offers in its out-of-the-box configurations. For teams that operate without established runtime environments like LangChain or LlamaIndex, as this may necessitate significant adaptation of ZenGuard.
- Is Guardrails or fast-llm-security-guardrails more popular on GitHub?
- Guardrails has more GitHub stars (7,101 vs 155). Stars measure visibility, not whether either tool fits your constraints.
- Are Guardrails and fast-llm-security-guardrails open source?
- Yes - both are open-source projects on GitHub (Guardrails: Other, fast-llm-security-guardrails: MIT).
- Where can I find alternatives to Guardrails or fast-llm-security-guardrails?
- GraphCanon lists graph-backed alternatives at Guardrails alternatives and fast-llm-security-guardrails alternatives (Guardrails markdown twin, fast-llm-security-guardrails 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, Guardrails or fast-llm-security-guardrails?
- Guardrails: Very active. fast-llm-security-guardrails: Slowing. 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 Guardrails and fast-llm-security-guardrails?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: Guardrails trust report; fast-llm-security-guardrails trust report.