Alternatives

Alternatives to Arize Phoenix

7 LLM Evals & Observability rivals, ranked by the same evidence-graded leaderboard — Arize Phoenix itself ranks #6 with a PA Score of 32/100. Every “beats Arize Phoenix on” below comes from a judged head-to-head round with cited evidence — see the methodology.

#1
Braintrust
Braintrust Data, Inc.
PA Score 38/100vs Arize Phoenix →
coverage
43.8/100
Beats Arize Phoenix on: Delegate tasks to a built-in AI assistant inside the product · Use an official CLI
#2
Cekura
Cekura
PA Score 36/100vs Arize Phoenix →
coverage
31.7/100
Beats Arize Phoenix on: Download a machine-readable API spec (OpenAPI or equivalent) · Mask or redact sensitive data before it is stored in traces
#3
W&B Weave
Weights & Biases (CoreWeave)
PA Score 35/100vs Arize Phoenix →
coverage
41.8/100
Beats Arize Phoenix on: Download a machine-readable API spec (OpenAPI or equivalent) · See cost and token usage per request, model, and time period in dashboards
#4
Helicone
Helicone, Inc.
PA Score 34/100vs Arize Phoenix →
coverage
32.4/100
Beats Arize Phoenix on: Download a machine-readable API spec (OpenAPI or equivalent) · Subscribe to events via webhooks
#5
Langfuse
Langfuse GmbH
PA Score 34/100vs Arize Phoenix →
coverage
49.4/100
Beats Arize Phoenix on: See cost and token usage per request, model, and time period in dashboards · Build custom dashboards over latency, error, cost, and eval-score metrics
#7
LangSmith
LangChain, Inc.
PA Score 23/100vs Arize Phoenix →
coverage
38.6/100
Beats Arize Phoenix on: Build custom dashboards over latency, error, cost, and eval-score metrics · Set alerts on error rates, cost spikes, or eval-score drops and get notified in Slack, PagerDuty, or email
#8
Galileo
Galileo
PA Score 19/100vs Arize Phoenix →
coverage
24.8/100
Beats Arize Phoenix on: Run evaluators continuously on live production traffic, not just offline datasets · Have an agent create a dataset, trigger an eval run programmatically, and read back the results

Full leaderboard: LLM Evals & Observability arena →