Top Promptfoo Alternatives for 2026
While Promptfoo is known for red teaming, many teams are looking for alternatives that offer not a runtime guardrail or better pricing. Here are the top competitors to consider.
TOP RATED ALTERNATIVE
GuardionAI
The only AI runtime security platform built specifically for Agentic AI, with sub-50ms latency and deep tool-call inspection.
Why it's better than Promptfoo
Full Agent Lifecycle
Not just prompt injection — we secure the intent, tool calls, retrieval, and output.
Sub-50ms Latency
Optimized for production workloads where every millisecond counts.
Compliance Ready
SOC 2, ISO 42001, and GDPR templates included out of the box.
Zero Instrumentation or Code Install
Deploy as a gateway in minutes.
Lakera
A focused runtime security layer protecting against prompt injection, PII leakage, and hallucinations via API.
Usage-based / Quote
Runtime LLM Guardrails
Meta (Llama Guard)
A set of LLM safeguards designed to detect violating content across multiple use cases. Model-based guardrail.
Open Source
Content Safety
Lasso Security
A GenAI-first platform focused on protecting LLM interactions, offering a secured gateway, browser integrations, and specialized protection for AI agents via MCP.
Custom Quote
LLM Interaction & Agent Security