# Fiddler Guardrails vs Starseer AI Gateway: side-by-side comparison (2026)

[Fiddler Guardrails](https://cybersectools.com/tools/fiddler-guardrails) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Fiddler AI](https://cybersectools.com/companies/fiddler-ai). [Starseer AI Gateway](https://cybersectools.com/tools/starseer-ai-gateway) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Starseer](https://cybersectools.com/companies/starseer). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Fiddler Guardrails | Starseer AI Gateway |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | LLM Guardrails | LLM Guardrails |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Fiddler AI | Starseer |
| Headquarters | – | – |

### Use cases and capabilities

| | Fiddler Guardrails | Starseer AI Gateway |
|---|---|---|
| Content Filtering | Yes | – |
| Generative AI | Yes | Yes |
| AI Gateway | – | Yes |
| Prompt Injection | – | Yes |
| LLM Security | – | Yes |
| AI Governance | – | Yes |
| AI Compliance | – | Yes |
| GenAI Security | – | Yes |
| Gateway | – | Yes |
| Agentic AI Security | – | Yes |
| Shadow AI | – | Yes |

### Core features

**Fiddler Guardrails**

9 features listed. Sign in on the page to see them.

**Starseer AI Gateway**

3 features listed. Sign in on the page to see them.

### Integrations

**Fiddler Guardrails**

7 integrations listed. Sign in on the page to see them.

**Starseer AI Gateway**

1 integration listed. Sign in on the page to see them.

## Fiddler Guardrails vs Starseer AI Gateway FAQ

Common questions when comparing Fiddler Guardrails vs Starseer AI Gateway for LLM guardrails.

### What is the difference between Fiddler Guardrails and Starseer AI Gateway?

**Fiddler Guardrails**: Guardrails for protecting LLM and agentic applications from harmful content. Built by Fiddler AI.

**Starseer AI Gateway**: Built by Starseer.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Fiddler Guardrails and Starseer AI Gateway?

**Fiddler Guardrails** is made by Fiddler AI. **Starseer AI Gateway** is made by Starseer. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Fiddler Guardrails a good alternative to Starseer AI Gateway?

Often, yes. Fiddler Guardrails and Starseer AI Gateway are both LLM Guardrails products, and both cover Generative AI. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Fiddler Guardrails vs SlashLLM](https://cybersectools.com/compare/fiddler-guardrails-vs-slashllm)
- [Fiddler Guardrails vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/fiddler-guardrails-vs-portkey-guardrails-for-bedrock)
- [Fiddler Guardrails vs RealmGuard](https://cybersectools.com/compare/fiddler-guardrails-vs-realm-labs-platform)
- [Starseer AI Gateway vs SlashLLM](https://cybersectools.com/compare/slashllm-vs-starseer-ai-gateway)
- [Starseer AI Gateway vs Portkey Guardrails for Bedrock](https://cybersectools.com/compare/portkey-guardrails-for-bedrock-vs-starseer-ai-gateway)
- [Starseer AI Gateway vs RealmGuard](https://cybersectools.com/compare/realm-labs-platform-vs-starseer-ai-gateway)

## Alternatives to each

- [See all Fiddler Guardrails alternatives](https://cybersectools.com/alternatives/fiddler-guardrails)
- [See all Starseer AI Gateway alternatives](https://cybersectools.com/alternatives/starseer-ai-gateway)

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Source: https://cybersectools.com/compare/fiddler-guardrails-vs-starseer-ai-gateway

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More on Fiddler Guardrails and Starseer AI Gateway: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md