Granite Guardian
Granite Guardian: A focused open-source toolkit for screening LLM risks and evaluating AI outputs. Ranked #14 of 27 in AI Content Moderation Software by our editors (7.8/10); pricing: Open source; best for LLM risk screening and evaluation.
At a glance
- Editor score7.8 / 10
- PricingOpen source
- Best forLLM risk screening and evaluation
- Paid from$0.21/unit usage-based
- Text moderationYes
- Founded1911 · Armonk, New York, United States
- Facts checked21 Sep 2026

Where it wins
- Screens prompts and responses for harmful content, bias, jailbreaks, and hallucinations
- Evaluates RAG relevance, groundedness, answers, and agentic function calls
- Supports custom criteria, local deployment, and IBM watsonx.ai integration
Where it doesn't
- Focused on text and LLM evaluation rather than general multimodal moderation
- Granite Guardian 3.8B inference is billed per 1M tokens through watsonx.ai
- Requires teams to choose and operate an API or self-hosted deployment path
Our verdict on Granite Guardian
Granite Guardian is IBM’s family of open-source risk-detection models and LoRA adapters for teams evaluating AI prompts, responses, conversations, retrieval-augmented generation, and agentic function calls. It is designed for LLM teams that need screening for harmful content, bias, profanity, violence, sexual-content risks, jailbreak attempts, hallucinations, and groundedness issues. The models are released under the Apache 2.0 license and support API and self-hosted deployment options.
According to IBM’s published pricing page, the Granite Guardian 3.8B plan costs $0.212 per 1M tokens for pay-as-you-go model inference through IBM watsonx.ai. The ecosystem also includes Ollama, vLLM, and Hugging Face, giving teams several runtime options alongside watsonx.ai. Its Bring Your Own Criteria capability lets teams define custom evaluation rules, while Think and no-think modes and LoRA adapters support different evaluation and downstream-task requirements.
Granite Guardian’s main strength is depth within LLM risk evaluation rather than breadth across every moderation format. It covers prompt and response screening, jailbreak detection, RAG context relevance, groundedness, answer relevance, and agentic function-call hallucination detection in one focused model family. That makes it a strong fit for teams building or assessing text-based AI systems, especially where custom policies and local execution matter. Teams seeking broad multimodal moderation should consider a product with a wider media scope instead.
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Granite Guardian pricing
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Granite Guardian fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | $0.21/unit usage-based |
| Text moderation | Yes |
| Image moderation | Not verified |
| Audio moderation | Not verified |
| Video moderation | Not verified |
| Custom policies | Yes |
| Human review workflow | Not verified |
| Deployment options | Hybrid |
| Deployment | Cloud, Self-hosted |
| Support | Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: IBM watsonx.ai, Ollama, vLLM, Hugging Face |
| Pricing | Open source (source) |
| Website | ibm.com |
| Facts checked | 21 Sep 2026 |
Granite Guardian integrations
Granite Guardian lists 4 integrations on its own site.
- IBM watsonx.ai
- Ollama
- vLLM
- Hugging Face
Alternatives to Granite Guardian
- Alibaba Cloud Content ModerationA broad cloud moderation API with transparent daily usage rates and no free plan.9.2
- Tencent Cloud Content SafetyA broad cloud moderation API for teams handling high-volume, multi-format content.9.0
- Huawei Cloud Content ModerationA cloud moderation service with broad media coverage and usage-based billing.8.9
See all Granite Guardian alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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