Comparison · Open-source LLM eval
AgentShield vs
Phoenix (Arize OSS)
Phoenix is the open-source eval/observability tool from Arize. Excellent for ML evaluation. AgentShield is governance for production agents.
Feature
AgentShield
Phoenix (Arize OSS)
Mode
Runtime governance
Offline eval
Pre-execution blocking
Yes
No
Compliance
Auto reports
DIY
Choose AgentShield when:
- Production runtime guardrails (Phoenix is offline eval)
- Hosted: no infra to run
- Audit-ready compliance reports
Choose Phoenix (Arize OSS) when:
- You're doing offline LLM evaluation
- Self-host is non-negotiable
Try it before deciding.
Run the Stress Test on your agent. 30 seconds. No signup. See if AgentShield fits your stack.