Model Armor alternatives
Model Armor is google Cloud runtime screening of prompts and responses for any model, across clouds via REST 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 Model Armor, and every listing is checked against its official site.
Compare Model Armor and its alternatives
| Tool | Best for | Pricing | Starts at | MCP server |
|---|---|---|---|---|
| Model Armorcurrent | Security teams screening AI traffic across models and clouds | Free plan | See site | Not checked |
| Amazon Bedrock Guardrails | 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 |
| NeMo Guardrails | Engineering teams that want self-hosted, code-level control over LLM guardrails | Open source | See site | Not checked |
| Replit | Teams and founders prototyping and shipping apps fast | Paid | Core $20/month ($18 billed annually) | Official |
| v0 | Developers and product teams prototyping web apps | Free plan | Free tier, Plus $30/user/month | Not checked |
| Firecrawl | Developers feeding web data to AI apps | Free plan | Free 1,000 credits/month, paid from $16/month billed yearly | Official |
| Ollama | Developer teams running open models privately or on their own hardware | Open source | Free to run locally, cloud plans from $20/month (as of October 2026) | 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 |
| Promptitude | Teams managing prompts and content workflows | Free plan | 100K free tokens on sign-up | Not checked |
| Pydantic AI | Python teams building production agents | Open source | See site | Not checked |
The alternatives
1. Amazon Bedrock Guardrails
Configurable safety filters for generative AI apps on AWS, usable with any model via the ApplyGuardrail API.
Pricing: Paid · Best for: teams building AI apps on AWS that need central safety policies · Also covers: ai guardrails, prompt injection
2. 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
3. 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
4. Replit
Browser-based environment where Replit Agent builds and deploys apps from prompts.
Pricing: Paid, from Core $20/month ($18 billed annually) · Best for: teams and founders prototyping and shipping apps fast
5. 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
6. Firecrawl
API that turns websites into clean data for AI apps.
Pricing: Free plan, from Free 1,000 credits/month, paid from $16/month billed yearly · Best for: developers feeding web data to AI apps
7. Ollama
Run open models locally or in Ollama's cloud through one API.
Pricing: Open source, from Free to run locally, cloud plans from $20/month (as of October 2026) · Best for: developer teams running open models privately or on their own hardware
8. 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
9. Promptitude
Platform to create, test and manage prompts and connect AI to business workflows.
Pricing: Free plan, from 100K free tokens on sign-up · Best for: teams managing prompts and content workflows
10. Pydantic AI
Typed Python framework for building AI agents across many model providers.
Pricing: Open source · Best for: python teams building production agents
Frequently asked questions
What is the best alternative to Model Armor?+
Amazon Bedrock Guardrails, Azure AI Content Safety and NeMo Guardrails are the closest matches in our directory. Amazon Bedrock Guardrails: Configurable safety filters for generative AI apps on AWS, usable with any model via the ApplyGuardrail API.
Is there a free alternative to Model Armor?+
Azure AI Content Safety, NeMo Guardrails, v0 and Firecrawl have a free plan or are open source. Free plans usually cap usage or features.
Is there an open-source alternative to Model Armor?+
Yes: NeMo Guardrails, Ollama and Promptfoo.
What is Model Armor?+
Google Cloud runtime screening of prompts and responses for any model, across clouds via REST API.
More alternatives