How PromptGuard compares
We wrote these, so read them accordingly. Every claim about another product comes from their own public material with the date it was read, each page says where the other option is the better choice, and our own figures are the same ones the rest of this site renders.
- PromptGuard vs Lakera Guard
Lakera Guard is the best-known runtime firewall in this category and is now part of Check Point. It is a strong product with real threat-intelligence behind it. The two differences that decide most evaluations are where the software is allowed to run and whether the numbers you are quoted can be checked.
Sources read between 11 August 2026 and 16 October 2026Read the comparison → - PromptGuard vs Amazon Bedrock Guardrails
Bedrock Guardrails is already in the console if you are on Bedrock, and for a single-cloud application that is a real advantage, there is nothing to add and nothing to integrate. The question is what happens when the application stops being single-cloud, or when the model you want is not one Bedrock serves.
Sources read 11 August 2026Read the comparison → - PromptGuard vs Open-source guardrails
The open-source guardrail libraries are good, genuinely free, and the right answer for a lot of projects. We would rather say that plainly than pretend otherwise. What they are not is a maintained detection service: you own the model updates, the evasion coverage, the latency budget and the on-call. The common end state in this market is layered, cheap deterministic checks in the application, a maintained firewall at the gateway.
Sources read 11 August 2026Read the comparison → - PromptGuard vs LiteLLM
LiteLLM is an open-source AI gateway: one OpenAI-format API in front of 100+ LLM providers, with virtual keys, spend tracking and load balancing. Its guardrails either run its own content filter, which matches regex patterns and keyword lists, or hand each request to a guardrail provider you configure. PromptGuard is one of those providers. So the useful question is not which one to pick but which layer does which job: LiteLLM routes and meters, PromptGuard decides whether a prompt or a response is an attack or a leak.
Sources read 16 October 2026Read the comparison → - PromptGuard vs Portkey
Portkey is an AI gateway with guardrails built in, and since 29 May 2026 part of Palo Alto Networks. Its built-in checks are deterministic ones, such as regex, JSON schema and allowed models, plus LLM-based checks for moderation, language, PII and gibberish, and a catalogue of partner security vendors. Routing traffic and detecting attacks are different jobs, and the common setup runs both: Portkey routes, retries and logs, and a security layer decides what is an attack or a leak. We maintain a Portkey guardrail plugin for exactly that.
Sources read 16 October 2026Read the comparison →
Each comparison dates every source it cites. Think we have something wrong? Tell us and we will correct it.
One engine in front of the AI you buildand the AI your people use
Your applications swap a base URL, no code change, and are protected in under 2 minutes. On your people's devices, an agent inspects the AI tools it covers and names the ones it does not. Every request is judged before it reaches the provider, in our cloud or entirely inside your network.