Arize AX vs Galileo
Arize AX
arize.com
Galileo
galileo.aiSide by side
| Figure | Arize AX | Galileo |
|---|---|---|
| Price from | $50/mo | $100/mo |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 3 |
| Spec score · Machine Learning Model Monitoring Software | 8.3 (#6) | 7.6 (#10) |
| Spec score · Llm Monitoring | 8.4 (#10) | 7.7 (#18) |
| Spec score · AI Agent Observability Tools | 8.3 (#12) | 7.9 (#21) |
| Spec score · AI LLM Observability Tools | 8.4 (#9) | 7.9 (#18) |
| Spec score · LLM Observability Tools | 8.4 (#11) | 7.9 (#20) |
| Spec score · Model Monitoring Software | 8.4 (#11) | 7.8 (#21) |
| Evaluation | Agent-as-a-Judge learns from agent telemetry and creates scalable evaluations that surface unknown failures. | The platform offers out-of-the-box evaluations for RAG, agents, safety, and security, along with custom evaluators. |
| Purpose | Arize AX is a platform for continuous improvement of AI agents that turns production behavior into better agents. | Galileo is an observability, evaluation, and guardrail platform for GenAI and agentic applications. |
| Support | AX Free includes community troubleshooting support, AX Pro includes email support and AX Enterprise includes dedicated support. | The Pro plan includes dedicated Slack support, and Enterprise includes 24/7 support via Slack, email, or phone. |
Plans
In their own words
Arize AX
Arize AX is a platform for improving AI agents by turning production behavior into investigations, evaluations, and experiments. Signal surfaces important issues, helps identify causes, and prepares fixes for review. Managed Agents can investigate failing traces, fix repository bugs, automate recurring checks, or be created from scratch. Swarm Observability tracks status and performance across an agent swarm in real time. Agent-as-a-Judge uses telemetry to produce scalable evaluations that can surface unknown failures, while end-to-end experiments help validate changes. Integrations include OpenAI, Anthropic, Google GenAI, Amazon Bedrock, LangChain, LangGraph, LlamaIndex, CrewAI, and Vercel AI SDK; tracing follows OpenInference conventions and OpenTelemetry. AX Free costs nothing and includes 10 Signal issues/month, 25k trace spans/month, 1 GB ingestion/month, and 15-day retention. AX Pro costs $50 a month, with 25 Signal issues/month, 50k trace spans/month, 10 GB ingestion/month, and 30-day retention. Enterprise pricing is custom. Self-hosted deployment keeps observability data, authentication, APIs, and UI within customer infrastructure; air-gapped deployment is available.
Galileo
Galileo is an observability, evaluation and guardrail platform for generative AI and agentic applications. It provides ready-made evaluations for RAG, agents, safety and security, as well as custom evaluators. Observability tools analyze agent behavior to surface patterns and failure modes, while Galileo Experiments let teams evaluate datasets and prompts systematically and compare results. Evaluation scores can guide agent actions, tool access and escalation paths. Developers can use Python and TypeScript SDKs or the API, with integrations including CrewAI, Google ADK, LangChain and LangGraph, OpenAI, Microsoft Agent Framework, Strands Agents and Vercel AI SDK. Deployment options include SaaS, virtual private cloud and on-premises. The Free plan includes 5,000 traces per month, unlimited users and unlimited custom evaluations. Pro costs $100 a month, billed yearly, and includes 50,000 traces per month; pricing scales with trace volume. SSO supports OIDC and SAML only on a customer's own Galileo cluster, not the free version or hosted app.galileo.ai service.