Arize AX
Eval Observability
AI observability and LLM evaluation.
- Founded
- 2020
- Company
- Arize
Pairwise compare
Arize AX vs Mastra
Side-by-side comparison of Arize AX and Mastra: category, pricing, company, tags, and public links.
$50/mo
Mastra
Agent Framework
The TypeScript agent framework.
- Founded
- 2024
- Company
- Mastra AI
Side-by-side fields
Static v1 catalog signals only. Live pricing and source verification are deferred.
| Field | Arize AX | Mastra |
|---|---|---|
| One-liner | AI observability and LLM evaluation. | The TypeScript agent framework. |
| Category | Eval Observability | Agent Framework |
| Starting price / mo | $50/mo | Pricing unknown |
| Company | Arize | Mastra AI |
| Founded | 2020 | 2024 |
| GitHub | github.com/Arize-ai/phoenix | github.com/mastra-ai/mastra |
| @arizeai | @mastra_ai | |
| Tags | Observability, Evals, Enterprise | Agents, TypeScript, Open Source |
| Status | Tracked | Tracked |