CloudMatos Prompt Firewall vs Lunar.dev AI Gateway: Side-by-Side Comparison (2026)

CloudMatos Prompt Firewall: Firewall for LLM systems preventing prompt injection, data leaks & jailbreaks. built by CloudMatos. Core capabilities include Prompt validation and sanitization, Response scrubbing and data redaction, Real-time threat detection with jailbreak signatures..

Lunar.dev AI Gateway: API gateway for managing, securing, and observing outbound LLM traffic. built by Lunar.dev. Core capabilities include Rate limiting for LLM API calls per user, app, or agent, Priority queue for AI workloads to manage request urgency, Data sanitization to redact sensitive data from prompts and tool inputs..

Both serve the LLM Guardrails market but differ in approach, feature depth, and target audience.

CloudMatos Prompt Firewall differentiates with Prompt validation and sanitization, Response scrubbing and data redaction, Real-time threat detection with jailbreak signatures. Lunar.dev AI Gateway differentiates with Rate limiting for LLM API calls per user, app, or agent, Priority queue for AI workloads to manage request urgency, Data sanitization to redact sensitive data from prompts and tool inputs.

CloudMatos Prompt Firewall is developed by CloudMatos. Lunar.dev AI Gateway is developed by Lunar.dev. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

CloudMatos Prompt Firewall integrates with OpenTelemetry, CloudMatos CNAPP, SIEM/SOC systems, OpenAI, Anthropic and 7 more. Lunar.dev AI Gateway integrates with OpenAI, Claude (Anthropic), Gemini (Google). Check integration compatibility with your existing security stack before deciding.

CloudMatos Prompt Firewall and Lunar.dev AI Gateway serve similar LLM Guardrails use cases: both are LLM Guardrails tools, both cover LLM Security, Prompt Injection. Key differences: CloudMatos Prompt Firewall is Commercial while Lunar.dev AI Gateway is Free. Review the feature comparison above to determine which fits your requirements.