Arize Phoenix
Open-source LLM evaluation and observability
Overview
Phoenix is Arize AI's open-source observability and evaluation tool for LLM applications — traces, evals, drift monitoring. Runs locally or in production; integrates with the broader Arize ML observability platform.
Pricing
Pricing shown for reference only. These figures reflect RECATOOLS research as of 20 May 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.
Use cases
ASEAN Perspective
Arize Phoenix in Southeast Asia
ASEAN-region availability and pricing notes coming soon. Drop the editorial team a note via /contact/ if you can supply local context (Singapore/Malaysia/Indonesia/Thailand/Vietnam).
Arize Phoenix is an open-source observability and evaluation toolkit for LLM and AI applications, offering tracing, prompt and RAG debugging, evals, and OpenTelemetry-based instrumentation that runs locally or self-hosted. For AI engineers it is one of the most capable free options for understanding why an LLM pipeline behaves the way it does.
It suits developers building and debugging RAG and agent systems who want vendor-neutral tracing without paying upfront; teams wanting fully managed SLAs may prefer Arize's commercial platform or rivals like LangSmith. There is a learning curve, and deep production monitoring nudges you toward the paid tier. Open-source and self-hostable, so ASEAN use and data control are straightforward.
About this listing
This entry was compiled from publicly available data including Arize Phoenix's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with Arize Phoenix unless explicitly stated.
Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.
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