Phoenix is great for local LLM tracing. AgentShield is built for governing agents in production.
Phoenix (by Arize) is an open-source LLM observability tool designed for local development and debugging. AgentShield is a cloud-hosted governance platform for monitoring AI agents in production with risk scoring and compliance.
| Feature | Phoenix | AgentShield |
|---|---|---|
| Observability | ||
| LLM Tracing | ✓ | ✓ |
| Span Visualization | ✓ | ✓ |
| Token & Cost Tracking | ✓ | ✓ |
| Production-Ready Hosting | ✗ local only | ✓ cloud-hosted |
| Risk & Safety | ||
| AI-Powered Risk Analysis | ✗ | ✓ |
| Real-Time Risk Alerts | ✗ | ✓ |
| Adversarial Testing | ✗ | ✓ 57+ scenarios |
| Governance | ||
| Human-in-the-Loop Approvals | ✗ | ✓ |
| Compliance Reports (EU AI Act) | ✗ | ✓ |
| Cost Budgets per Agent | ✗ | ✓ |
| Other | ||
| Open Source | ✓ Apache 2.0 | ✗ |
| Self-Hosting | ✓ | ✗ |
Absolutely. Phoenix is a great free tool for local development and debugging LLM traces. When you move to production, AgentShield provides the governance, risk scoring, and compliance monitoring that Phoenix was never designed for.
Use Phoenix to debug locally. Use AgentShield to govern in production.
Local tracing is just the start. Production agents need risk scoring, compliance, and approval workflows.