These tools competes with
Arize PhoenixvsHelicone
ML/LLM observability and evaluation platform versus LLM observability, cost tracking, request logging
Compare interactively in Explore →Choose Arize Phoenix when…
- •You need ML observability beyond just LLMs
- •RAG pipeline tracing and eval integration is required
- •You're running experiments and need a notebook-friendly tool
Choose Helicone when…
- •You want one-line LLM observability setup
- •Caching LLM responses to cut costs matters
- •You're an early-stage startup optimizing quickly
Side-by-side comparison
Field
Arize Phoenix
Helicone
Category
LLM Infrastructure
LLM Infrastructure
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Enterprise: Custom
Pro: Usage-based
GitHub Stars
⭐ 4,000
⭐ 2,500
Health
●75 — Active
●80 — Active
Arize Phoenix
Open-source observability platform for ML and LLM applications. Supports tracing, evaluation, and dataset management with a strong eval framework.
Shared Connections1 tools both integrate with
Only Arize Phoenix (1)
Helicone
Only Helicone (7)
LiteLLMOpenAI APIAnthropic APILangSmithArize PhoenixTraceloopLogfire
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