Quick Answer
Last verified:
High confidence

Phoenix (Arize) costs Free to $50 per month as of August 2026, with 3 plans available including a free tier. Plans: AX Free (free), and AX Pro at $50/month. Enterprise pricing is available on request. 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: Yes

Phoenix (Arize) offers 3 pricing tiers: AX Free, AX Pro, AX Enterprise. A free plan is available. Paid plans include AX Pro at $50/month.

Last verified: | Sources: 1 pricing pages and reviews
Know Before You Buy — Try Phoenix (Arize) Free

Phoenix (Arize) lists $0-$50/month, but hidden costs like implementation and support add to the total as of August 2026. Key hidden costs: self-hosting devops bandwidth, paid support add-on (phoenix), overage charges for trace spans (arize ax pro). Verified from 1 sources by CostBench.

Hidden Costs Breakdown

1

Self-Hosting DevOps Bandwidth

medium implementation

Implementation costs for the open-source Phoenix platform involve the necessary DevOps bandwidth to run and manage servers for spans, ingestion, projects, and data retention.

industry

One source indicates that beyond the included 50,000 trace spans per month and 10 GB ingestion per month, additional spans are billed at $0.0008 per span, and additional data at $3 per GB.

2

Paid Support Add-on (Phoenix)

low support

A paid support add-on is available separately for the open-source Phoenix platform.

industry

A paid support add-on is available separately.

3

Overage Charges for Trace Spans (Arize AX Pro)

high overage

For the AX Pro plan, exceeding the included 50,000 trace spans per month leads to additional costs, billed at $0.0008 per span.

industry

One source indicates that beyond the included 50,000 trace spans per month and 10 GB ingestion per month, additional spans are billed at $0.0008 per span, and additional data at $3 per GB.

4

Overage Fees

high overage

For Arize AX Pro, overage fees are $10 per million spans over the included limit and $3 per GB of payload beyond the allotted data ingestion.

industry

For instance, a workload of 50 million spans generating approximately 250 GB of telemetry could incur an additional $450 in data overages alone, on top of span overages.

5

Scaling Costs

high implementation

Enterprise pricing for Arize AX typically starts around $50,000 per year and can escalate to $100,000 or more for larger deployments or when monitoring numerous models.

industry

Scaling Costs: Enterprise pricing for Arize AX typically starts around $50,000 per year and can escalate to $100,000 or more for larger deployments or when monitoring numerous models.

6

Setup and Integration Time

high implementation

Buyers have noted a "steep learning curve" and that "setup and integration into existing systems can take some time," implying significant internal labor costs for implementation and configuration.

industry

Setup and Integration Time: Buyers have noted a "steep learning curve" and that "setup and integration into existing systems can take some time," implying significant internal labor costs for implementation and configuration.

7

Supplementary Tooling

medium addon

Teams requiring extensive pre-production simulation and experimentation capabilities may need to invest in additional tools, leading to further costs.

industry

Teams requiring extensive pre-production simulation and experimentation capabilities may need to invest in additional tools, leading to further costs.

8

New Enhancements Fees

high addon

Arize's terms of service indicate that access to certain new enhancements or features may require "the payment of additional fees," determined at Arize's sole discretion.

industry

New Enhancements: Arize's terms of service indicate that access to certain new enhancements or features may require "the payment of additional fees," determined at Arize's sole discretion.

Frequently Asked Questions

01 What hidden costs should I budget for with Phoenix (Arize)?

Beyond the license fee, budget for: Overage Charges for Trace Spans (Arize AX Pro) ($0.0008 per span); Overage Fees ($10 per million spans, $3 per GB of payload); Scaling Costs ($50,000 per year). Exact totals depend on your deployment size and negotiated terms.

02 Does Phoenix (Arize) charge for implementation?

Phoenix (Arize) implementation is not included in the license cost. Implementation costs for the open-source Phoenix platform involve the necessary DevOps bandwidth to run and manage servers for spans, ingestion, projects, and data retention..

03 How much does Phoenix (Arize) support cost?

A paid support add-on is available separately for the open-source Phoenix platform..

04 Are there overage or storage costs with Phoenix (Arize)?

For the AX Pro plan, exceeding the included 50,000 trace spans per month leads to additional costs, billed at $0.0008 per span. Estimated impact: $0.0008 per span.

05 What add-ons cost extra with Phoenix (Arize)?

Add-on pricing for Phoenix (Arize) varies by feature. The sourced cost breakdown above lists any verified add-on costs we have.

Now You Know the Real Cost — Try Phoenix (Arize) Free

Check current Phoenix (Arize) pricing

Prices and terms change; verify against the live pricing page.

See Phoenix (Arize) Pricing