Prompt Security
What ChatGPT, Claude, Gemini & Grok actually say · July 2026
The verdict
Prompt Security appears in 1 AI-ranked category — best position #3 for llm security tool.
The most complete commercial coverage of the exfiltration half — DLP-style detection and redaction of PII, secrets, and proprietary data in both prompts and responses, plus injection defense for homegrown apps, agents, and MCP traffic, with SentinelOne's backing post-acquisition; near-tie with Prompt Shields below, ranked ahead because it addresses both halves of the question rather than detection only.
Where Prompt Security falls short, per the models
- Claude An enterprise platform with platform pricing and deployment overhead — overkill for a single app team that just needs an inline injection check.
Top alternatives per the models: Lakera Guard · LlamaFirewall · Microsoft Prompt Shields · NVIDIA NeMo Guardrails
Rankings are computed from what the models answer, re-polled continuously · raw reasoning shown verbatim · methodology