Arize Phoenix Free Plan 2026: What's Included & What's Not
Honest breakdown of the free tier limits and features
Arize Phoenix costs Free to $1K per month as of April 2026. Pricing depends on your chosen tier, contract length, and negotiated discounts.
Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.
- Free tier: No free tier available
Yes, Arize Phoenix offers a forever free plan as of April 2026. The free tier includes 4 features with limits on usage. Paid plans start at $50/month (AX Pro). Pricing verified from 1 sources by CostBench.
Arize Phoenix's free plan is available indefinitely with no time limit.
What's Included in the Free Plan
- Fully self-hosted
- User-managed retention
- All core tracing and eval features
- Optional paid support add-on
What's NOT Included (Paid Only)
- 50k spans/month included
- 10 GB ingestion/month
- 30-day retention
- Email support
- Startup pricing available
You'll Need to Upgrade When...
- You exceed the user limit
- You need features like 50k spans/month included or 10 GB ingestion/month
- You require premium support or SLA guarantees
- You need to remove branding or watermarks
- You need advanced integrations or API access
Hidden Restrictions on Free Plan
- Arize Phoenix branding may appear on your content or communications
- Support is limited to community forums or email with longer response times
- Export options may be restricted or include watermarks
- API access is typically limited or not available
- Advanced reporting and analytics require paid plans
Free vs Paid: Which Do You Need?
Free Plan is Enough If...
- You're an individual or very small team
- You need only basic features
- You don't mind usage limits
- Branding on output is acceptable
- Community support is sufficient
You Need Paid If...
- Your team is growing beyond limits
- You need advanced features
- Professional branding is required
- You need priority support
- Integrations/API access is critical
Free vs AX Pro Plan Comparison
| Phoenix (Open Source) $0 | AX Pro $50/month | |
|---|---|---|
| Features | 4 included | 5+ included |
| Support | Community/Email | Priority Support |
| Branding | Arize Phoenix branding | Your branding |
| Best For | Teams wanting self-hosted observability | Small teams running production LLM apps |
Frequently Asked Questions
01 Is Arize Phoenix free?
Yes, Arize Phoenix offers a forever free plan with 4 core features included. However, there are limits on users and features that may require upgrading.
02 What's included in Arize Phoenix's free plan?
Arize Phoenix's free plan includes: Fully self-hosted, User-managed retention, All core tracing and eval features, Optional paid support add-on. Key limits include basic usage caps.
03 What's NOT included in Arize Phoenix's free plan?
The free plan excludes: 50k spans/month included, 10 GB ingestion/month, 30-day retention, Email support, Startup pricing available. You'll also have Arize Phoenix branding and limited support options.
04 When should I upgrade from Arize Phoenix's free plan?
Consider upgrading when: you hit user or storage limits, need features like 50k spans/month included or 10 GB ingestion/month, require premium support, or want to remove branding. The cheapest paid plan starts at $50/month.
05 Is Arize Phoenix's free plan really free forever?
Yes, Arize Phoenix's free plan is available indefinitely with no time limit. However, feature and usage limits may restrict what you can do without upgrading to a paid plan.