Why Arize AI matters
Dynatrace agrees to acquire Arize for $915M in cash and stock on August 13, 2026, with closing expected within Dynatrace's next two fiscal quarters subject to approvals. Arize raised a $70M Series C led by Adams Street Partners in February 2025, with M12, Datadog and PagerDuty participating. Its open source Phoenix tracing project has 11,500 GitHub stars as of September 2026.
The numberDynatrace agreed to acquire Arize for $915M in cash and stock on August 13, 2026
On The Agentic 80
Listed under Agent frameworks and infrastructure. What agents are built on: orchestration, tools, memory, evals, sandboxes.
Quick answers
- What does Arize AI do?
- Observability and evaluation software for LLM apps and agents, via open source Phoenix and Arize AX. Dynatrace agrees to acquire Arize for $915M in cash and stock on August 13, 2026, with closing expected within Dynatrace's next two fiscal quarters subject to approvals.
- What AI capabilities does Arize AI offer?
- Arize AI offers Phoenix, an open source toolkit for tracing, evaluating, and debugging LLM applications, and Arize AX, a hosted platform for production monitoring. Teams log traces, score model outputs, compare prompts and experiments, and track quality, latency, and cost for apps and agents. The products support evaluation and observability rather than end-user chat.
- Why is Arize AI on The Agentic 80?
- Arize AI is listed under Agent frameworks and infrastructure. What agents are built on: orchestration, tools, memory, evals, sandboxes. Dynatrace agreed to acquire Arize for $915M in cash and stock on August 13, 2026.
- Where is Arize AI based, and who owns it?
- Arize AI is based in Berkeley, CA, was founded in 2020 and is pending acquisition by Dynatrace ($915M, announced Aug 2026).