Pick Latitude if
prompt teams who will stay on Free at $0 (20k credits, 30-day retention, unlimited seats) while they open a first trace, then Pro at $99/month when they need 100k credits or 90-day retention.
Read the Latitude pageLatitude vs Phoenix
Our take
Pick Latitude if you're on a prompt team who will stay on Free at $0 (20k credits, 30-day retention, unlimited seats) while they open a first trace, then Pro at $99/month when they need 100k credits or 90-day retention. Pick Phoenix if you're on a agent team who will self-host Phoenix for $0 (uvx arize-phoenix serve) and only open Arize AX when they want a managed cloud.
Best for
Latitude Ship a prompt and inspect the trace at a public $
Phoenix See why an agent failed and prove a fix
Free plan
Latitude $0 · 20k credits / month. 30-day retention. Unlimited seats. Slack community support
Phoenix $0 · local / Docker / Kubernetes. You bring compute. Homepage: uvx arize-phoenix serve
Lowest paid
Latitude Pro $99/mo
Phoenix AX Pro $50/mo
Runs where
Latitude Local or hosted
Phoenix Hosted
Watch out
Latitude Free is 20k credits / 30 days
Phoenix ELv2, not Apache
Last checked
Latitude 2026-10-27 · latitude.so/pricing
Phoenix 2026-10-27 · arize.com/pricing
Which one, then?
Pick Phoenix if
agent teams who will self-host Phoenix for $0 (uvx arize-phoenix serve) and only open Arize AX when they want a managed cloud.
Read the Phoenix page