Arize Phoenix vs Galileo
Arize Phoenix vs Galileo: side-by-side comparison of two evaluation & observability platforms systems — architecture, taxonomy, license, pricing, MCP/A2A support, and direct edges.
Cost & capability
| Arize Phoenix | Galileo | |
|---|---|---|
| Cost tier | searched not found | searched not found |
| $/Mtok input | searched not found | searched not found |
| $/Mtok output | searched not found | searched not found |
Where they differ (4)
Rows where both sides have data and the values disagree — the shortlist of dimensions that actually distinguish these two systems.
| Arize Phoenix | Galileo | |
|---|---|---|
| Type | OSS LLM tracing + eval | Eval + observability + guardrails |
| Created | 2023 | 2021 |
| License | Elastic 2.0 | searched not found |
| Funding | searched not found | $87.6M total raised through Series B 2024-06 ($45M, Scale Venture Partners led). |
At a glance
| Arize Phoenix | Galileo | |
|---|---|---|
| Section | Evaluation & observability platforms | Evaluation & observability platforms |
| Tier | T1 | T1 |
| Type | OSS LLM tracing + eval | Eval + observability + guardrails |
| Created | 2023 | 2021 |
| Latest release | searched not found | searched not found |
| License | Elastic 2.0 | searched not found |
| GitHub | searched not found | searched not found |
| Pricing | searched not found | searched not found |
| Funding | searched not found | $87.6M total raised through Series B 2024-06 ($45M, Scale Venture Partners led). |
| Deployment | searched not found | searched not found |
| API surface | searched not found | searched not found |
| Multi-tenancy | searched not found | searched not found |
| MCP | searched not found | searched not found |
| A2A | searched not found | searched not found |
| OpenTelemetry | searched not found | searched not found |
| Optimised for | searched not found | searched not found |
| Anti-fit | searched not found | searched not found |
Taxonomy
| Axis | Arize Phoenix | Galileo |
|---|---|---|
| storage | n/a | n/a |
| retrieval | n/a | n/a |
| persistence | n/a | n/a |
| update | n/a | n/a |
| unit | n/a | n/a |
| governance | n/a | n/a |
| conflict | n/a | n/a |
Pros & cons
Arize Phoenix
Pros: searched not found
Cons: searched not found
Galileo
Pros: searched not found
Cons: searched not found