# NVIDIA NeMo Guardrails - **Canonical URI:** https://www.vioscale.ai/software/nvidia-nemo-guardrails - **Category:** AI Guardrails - **Homepage:** https://github.com/NVIDIA/NeMo-Guardrails - **Also known as:** nvidia-nemo-guardrails - **Profile claimed by vendor:** no - **Last updated:** 2026-08-26T19:34:42.184Z ## Vioscale score **61.3 / 100**, confidence 34% (low). Computed 2026-09-01. _(updating — computed under an earlier model version or past its freshness window.)_ Composite of weighted, independently-sourced signals (no user reviews, no vendor payment). | Signal | Score | Weight | Contribution | Evidence present | |---|--:|--:|--:|:--:| | price_level | 100 | 0.052 | 5.2 | ✓ | | reliability | 0 | 0.073 | 0 | - | | capabilities | 91.6 | 0.084 | 7.7 | ✓ | | repo_stars | 72.6 | 0.026 | 1.9 | ✓ | | integrations | 31 | 0.09355555555555557 | 2.9 | ✓ | | dependent_projects | 0 | 0.063 | 0 | ✓ | | dev_activity | 55 | 0.094 | 5.2 | ✓ | | release_cadence | 78.3 | 0.052 | 4.1 | ✓ | | security_posture | 5 | 0.073 | 0 | - | | package_downloads | 0 | 0.136 | 0 | - | | security_score | 0 | 0.042 | 0 | - | | pricing_transparency | 80 | 0.084 | 6.7 | ✓ | | community_qa_activity | 0 | 0.063 | 0 | - | ## Pricing _As of 2026-08-21, [verify at source](https://github.com/pricing). Independently observed._ Open source · Free tier > Free, open-source ## About A Python library that protects language model-based chat applications from common vulnerabilities through modular guardrails. It supports input and output moderation, prompt injection and jailbreak detection, hallucination identification, RAG chunk validation, and integrates with multiple LLM frameworks and safety services. _Independently observed._ ## Platform & deployment - **Platforms:** CLI, Linux - **Deployment:** Cloud / SaaS, On-premise, Self-hosted ## Integrations (11) _Independently observed._ - OpenAI - LangChain - Hugging Face - vLLM - KServe - FMS - PrivateAI - Polygraf - NemoGuard - Nemotron - Patronus ## Capabilities _The capabilities that matter for AI Guardrails. "-" = undocumented, not absent._ | Capability | Supported | |---|:--:| | **Capabilities** | | | Architecture model | Open source python library | | Prompt injection and jailbreak blocking | ✓ | | Inbound pii and credit card masking redaction | ✓ | | Outbound toxicity and competitor mention blocking | ✓ | | Hallucination and topical off brand drift detection | ✓ | | Sub 50ms latency guarantees for proxy routing | ✗ | | Custom regex and deterministic denylist rulesets | ✓ | | Streaming token interception and chunked eval | ✓ | | Rag retrieval chunk poisoning defense | ✓ | | Zero data retention and prompt privacy guarantees | ✓ | | SOC2 type ii | ✗ | | ISO 27001 | ✗ | | Pricing model | Free open source | ## Release history | Version | Date | Type | |---|---|---| | [v0.23.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.23.0) | 2026-07-01 | stable | | [v0.22.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.22.0) | 2026-05-22 | stable | | [v0.21.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.21.0) | 2026-03-12 | stable | | [v0.20.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.20.0) | 2026-01-22 | stable | | [v0.19.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.19.0) | 2025-12-03 | stable | | [v0.18.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.18.0) | 2025-11-06 | stable | | [v0.17.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.17.0) | 2025-10-09 | stable | | [v0.16.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.16.0) | 2025-09-05 | stable | | [v0.15.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.15.0) | 2025-08-08 | stable | | [v0.14.1](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.14.1) | 2025-07-08 | stable | | [v0.14.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.14.0) | 2025-06-11 | stable | | [v0.13.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.13.0) | 2025-03-25 | stable | | [v0.12.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.12.0) | 2025-02-26 | stable | | [v0.11.1](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.11.1) | 2025-01-16 | stable | | [v0.11.0](https://github.com/NVIDIA-NeMo/Guardrails/releases/tag/v0.11.0) | 2024-11-19 | stable | _… and 5 earlier release(s)._ ## Security & compliance Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FNVIDIA%2FNeMo-Guardrails&per_page=100)). A count reflects scale and disclosure, not quality. ## Facts Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule. ### pricing | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | pricing.model | commercial | [link](https://github.com/NVIDIA/NeMo-Guardrails) | 2026-08-26 | 60% (medium) | | pricing.free_tier | yes | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) | | pricing.price_level | free | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) | | pricing.transparent | yes | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) | ### integrations | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | integrations.count | 11 | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) | ### security | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | security.disclosure_policy | yes | [link](https://github.com/pricing) | 2026-08-21 | 60% (medium) | | security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FNVIDIA%2FNeMo-Guardrails&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FNVIDIA%2FNeMo-Guardrails&per_page=100) | 2026-08-26 | 90% (high) | ### activity | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | activity.commits_last_30d | 55 | [link](https://github.com/NVIDIA/NeMo-Guardrails/pulse) | 2026-08-26 | 65% (medium) | ### adoption | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | adoption.github_stars | 7,016 | [link](https://github.com/NVIDIA/NeMo-Guardrails) | 2026-08-26 | 90% (high) | | adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2FNVIDIA%2FNeMo-Guardrails) | 2026-08-26 | 85% (high) | ### language | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | language.primary | Python | [link](https://github.com/NVIDIA/NeMo-Guardrails) | 2026-08-26 | 90% (high) | ### release | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | release.cadence_days | 39 | [link](https://github.com/NVIDIA/NeMo-Guardrails/releases) | 2026-08-26 | 70% (medium) | --- *Source: Vioscale (https://www.vioscale.ai/software/nvidia-nemo-guardrails). Independent, evidence-based software intelligence. Cite the canonical URI.*