Amazon Bedrock Guardrails alternatives
Amazon Bedrock Guardrails is configurable safety filters for generative AI apps on AWS, usable with any model via the ApplyGuardrail API. If it is not the right fit on price, features or setup, these 10 tools do a similar job. We rank them by how closely they match Amazon Bedrock Guardrails, and every listing is checked against its official site.
Compare Amazon Bedrock Guardrails and its alternatives
| Tool | Best for | Pricing | Starts at | MCP server |
|---|---|---|---|---|
| Amazon Bedrock Guardrailscurrent | Teams building AI apps on AWS that need central safety policies | Paid | See site | Not checked |
| Azure AI Content Safety | Teams on Azure and Microsoft Foundry moderating AI input and output | Free plan | See site | Not checked |
| Model Armor | Security teams screening AI traffic across models and clouds | Free plan | See site | Not checked |
| Lakera | Security teams protecting LLM apps and agents at runtime | Enterprise | See site | Not checked |
| Langfuse | Engineering teams tracing and evaluating LLM apps | Open source | Free Hobby cloud plan and free self-hosting, Core from $29/month, Pro $199/month (as of October 2026) | Official |
| NeMo Guardrails | Engineering teams that want self-hosted, code-level control over LLM guardrails | Open source | See site | Not checked |
| Promptfoo | Developer and security teams red teaming LLM apps in CI | Open source | Free open-source Community plan with 10k red team probes/month, Enterprise and On-Premise priced on request (as of October 2026) | Not checked |
| Arize AI | Teams monitoring and evaluating LLM agents in production | Free plan | Free AX plan, AX Pro $50/month, Enterprise custom (as of October 2026) | Not checked |
| Braintrust | AI product teams running evals on agents in production | Free plan | Free Starter plan, Pro $249/month, Enterprise custom (as of October 2026) | Official |
| v0 | Developers and product teams prototyping web apps | Free plan | Free tier, Plus $30/user/month | Not checked |
| Cursor | Engineering teams adopting agent-assisted coding | Free plan | Free Hobby plan, paid from $20/month (Individual), Teams $40/user/month (as of October 2026) | Not checked |
The alternatives
1. Azure AI Content Safety
Microsoft's API for detecting harmful content, prompt attacks and ungrounded output in AI apps.
Pricing: Free plan · Best for: teams on Azure and Microsoft Foundry moderating AI input and output · Also covers: ai guardrails, ai safety, content moderation
2. Model Armor
Google Cloud runtime screening of prompts and responses for any model, across clouds via REST API.
Pricing: Free plan · Best for: security teams screening AI traffic across models and clouds · Also covers: ai guardrails, prompt injection
3. Lakera
AI security for agents and workforce AI use, with runtime guardrails and red teaming.
Pricing: Enterprise · Best for: security teams protecting LLM apps and agents at runtime · Also covers: ai safety, prompt injection
4. Langfuse
Open-source LLM engineering platform for tracing, prompt management and evaluations.
Pricing: Open source, from Free Hobby cloud plan and free self-hosting, Core from $29/month, Pro $199/month (as of October 2026) · Best for: engineering teams tracing and evaluating LLM apps · Also covers: ai safety
5. NeMo Guardrails
NVIDIA's open-source toolkit for adding programmable input, dialog, retrieval and output rails to LLM apps.
Pricing: Open source · Best for: engineering teams that want self-hosted, code-level control over LLM guardrails · Also covers: ai guardrails
6. Promptfoo
Open-source CLI and platform for red teaming, scanning and evaluating LLM apps and agents.
Pricing: Open source, from Free open-source Community plan with 10k red team probes/month, Enterprise and On-Premise priced on request (as of October 2026) · Best for: developer and security teams red teaming LLM apps in CI · Also covers: ai safety
7. Arize AI
Agent observability and evaluation platform, with the open-source Phoenix for tracing and evals.
Pricing: Free plan, from Free AX plan, AX Pro $50/month, Enterprise custom (as of October 2026) · Best for: teams monitoring and evaluating LLM agents in production · Also covers: ai safety
8. Braintrust
AI observability and evals platform for tracing agents, running experiments and scoring outputs.
Pricing: Free plan, from Free Starter plan, Pro $249/month, Enterprise custom (as of October 2026) · Best for: aI product teams running evals on agents in production · Also covers: ai safety
9. v0
Vercel's AI assistant for building web apps and UIs from text prompts.
Pricing: Free plan, from Free tier, Plus $30/user/month · Best for: developers and product teams prototyping web apps
10. Cursor
AI code editor with coding agents, built by Anysphere.
Pricing: Free plan, from Free Hobby plan, paid from $20/month (Individual), Teams $40/user/month (as of October 2026) · Best for: engineering teams adopting agent-assisted coding
Frequently asked questions
What is the best alternative to Amazon Bedrock Guardrails?+
Azure AI Content Safety, Model Armor and Lakera are the closest matches in our directory. Azure AI Content Safety: Microsoft's API for detecting harmful content, prompt attacks and ungrounded output in AI apps.
Is there a free alternative to Amazon Bedrock Guardrails?+
Azure AI Content Safety, Model Armor, Langfuse and NeMo Guardrails have a free plan or are open source. Free plans usually cap usage or features.
Is there an open-source alternative to Amazon Bedrock Guardrails?+
Yes: Langfuse, NeMo Guardrails and Promptfoo.
What is Amazon Bedrock Guardrails?+
Configurable safety filters for generative AI apps on AWS, usable with any model via the ApplyGuardrail API.
More alternatives