Arize Phoenix vs HockeyStack
Updated June 2026 · A structured head-to-head comparison.
Open-source LLM tracing and evaluation
AI revenue analytics and attribution.
The verdict
Both Arize Phoenix and HockeyStack are credible ai machine learning tools, and the right pick comes down to your priorities.
Choose Arize Phoenix if you want a lower starting price (free – $50/mo), a free plan to start on and broader platform coverage. Open-source LLM tracing and evaluation
Choose HockeyStack if you'd rather have a higher overall rating (4.7/5). AI revenue analytics and attribution.
Arize Phoenix vs HockeyStack: side by side
| Dimension | Arize Phoenix | HockeyStack |
|---|---|---|
| Starting price | Free – $50/moWinner | Custom |
| Free plan | YesWinner | No |
| Pricing model | Open source | Subscription |
| Best for | Developers, Ai Teams | Marketing Teams, Enterprise |
| Platforms | Api, Self Hosted, WebWinner | Web |
| Rating | 4.4/5 | 4.7/5Winner |
Arize Phoenix key facts
- Vendor
- Arize AI
- Pricing
- Open source — Free – $50/mo
- Free tier
- Yes
- Platforms
- Api, Self Hosted, Web
- Best for
- Developers, Ai Teams
- Editor rating
- 4.4 / 5
- Founded
- 2020
- Headquarters
- Berkeley, USA
HockeyStack key facts
- Vendor
- HockeyStack
- Pricing
- Subscription — Custom
- Free tier
- No
- Platforms
- Web
- Best for
- Marketing Teams, Enterprise
- Editor rating
- 4.7 / 5
- Founded
- 2020
- Headquarters
- San Francisco, CA, USA
Frequently asked questions
Is Arize Phoenix better than HockeyStack?
Neither is universally better — HockeyStack edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is Arize Phoenix or HockeyStack cheaper?
Arize Phoenix is the more affordable of the two to get started, at free – $50/mo. Arize Phoenix starts at free – $50/mo; HockeyStack starts at custom.
Can Arize Phoenix replace HockeyStack?
Yes for most teams — both are ai machine learning tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.