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AI · head to head

Arize AI vs FireHydrant

Arize AI logo

Arize AI

AI

AI engineering platform for observability and evaluation of agents and LLM apps

From
Free
Rated
-
Full reviewWebsite
FireHydrant logo

FireHydrant

Logging

All-in-one incident management for alerting, on-call, and response

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arize AI the free plan caps trace spans at 25,000 per month with only 15 days of retention.; FireHydrant free tier has limited functionality with only 2 runbooks
  • They diverge on capability: Arize AI covers End-to-end tracing, FireHydrant covers Automated runbooks.

Where they differ

Only the attributes on which Arize AI and FireHydrant actually diverge.

Attributes where Arize AI and FireHydrant differ
AttributeArize AIFireHydrant
Pricing modelfreemiumsubscription
Platformsweb, apiWeb, Slack, Microsoft Teams, Mobile
CategoryAILogging
FoundedUnknown2018

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Arize AI

  • End-to-end tracing
  • Evaluation framework
  • Prompt testing and improvement
  • Alyx AI engineering agent
  • Custom dashboards
  • Data warehouse integrations

Only in FireHydrant

  • Automated runbooks
  • On-call management
  • Service catalog
  • Incident response collaboration
  • AI incident insights
  • Status pages
  • AI retrospectives

What people use each for

The jobs each tool is most often brought in to do.

Arize AI

  • Tracing and debugging production AI agentsnot FireHydrant
  • Running large-scale evaluations across traces and sessionsnot FireHydrant
  • Improving prompts before production rolloutnot FireHydrant
  • Storing and querying GenAI traces alongside a data warehousenot FireHydrant

FireHydrant

  • Manage incidents directly from Slack or Teamsnot Arize AI
  • Automate incident response with runbooksnot Arize AI
  • Triage incidents and track ownershipnot Arize AI
  • Run post-incident retrospectivesnot Arize AI
  • Communicate incidents to customers automaticallynot Arize AI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Arize AI

  • The free plan caps trace spans at 25,000 per month with only 15 days of retention.
  • Self-hosted deployment and Data Fabric integration are restricted to the custom-priced Enterprise tier.
  • Pricing beyond the $50/month Pro plan requires a custom quote, making cost planning less transparent at scale.
  • Advanced compliance features like HIPAA are only available on Enterprise.

FireHydrant

  • Free tier has limited functionality with only 2 runbooks
  • Pro plan billing is annual-only (no monthly option)
  • AI features concentrated in Enterprise tier
  • Pricing per responder can increase with team size

Pricing, plan by plan

Arize AI

Free
  • AX FreeFree
    • 25k trace spans/month
    • 1 GB storage/month
    • 15-day retention
  • AX Pro$50/month
    • 50k trace spans/month
    • 10 GB storage/month
    • 30-day retention
  • AX Enterprise$undefined/mo
    • Custom trace spans, storage, and retention
    • SaaS or self-hosted deployment
    • Managed agents and Data Fabric

FireHydrant

Free
  • FreeFree
    • Up to 10 responders
    • 2 runbooks
    • Slack and Teams chatbot
  • Pro$25/responder-month
    • 5 runbooks
    • Slack and Teams chatbot
    • 1 retrospective template
  • Enterprise$undefined/custom
    • Everything in Pro plus
    • Viewer licenses
    • Unlimited runbooks

Which should you pick?

Choose Arize AI if

  • You need end-to-end tracing.
  • You want to start without paying.
  • You work on web, api.
  • You also want evaluation framework.
Arize AI review

Choose FireHydrant if

  • You need automated runbooks.
  • You want to start without paying.
  • You work on Web, Slack, Microsoft Teams, Mobile.
  • You also want on-call management.
FireHydrant review

Questions people ask

Is Arize AI or FireHydrant better?
Neither clearly leads. Arize AI starts at Free and FireHydrant at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arize AI or FireHydrant?
Arize AI starts at Free and FireHydrant at Free.
Does Arize AI or FireHydrant run on more platforms?
Arize AI runs on web, api. FireHydrant runs on Web, Slack, Microsoft Teams, Mobile.
Can I use Arize AI for free?
Both have a free tier, so you can try either at no cost before committing.
What is Arize AI best used for?
Arize AI is most often used for tracing and debugging production ai agents, running large-scale evaluations across traces and sessions, improving prompts before production rollout, storing and querying genai traces alongside a data warehouse. Of those, tracing and debugging production ai agents and running large-scale evaluations across traces and sessions are not what FireHydrant is typically brought in for.
What can Arize AI do that FireHydrant cannot?
Arize AI covers End-to-end tracing, Evaluation framework, Prompt testing and improvement, Alyx AI engineering agent. FireHydrant covers Automated runbooks, On-call management, Service catalog, Incident response collaboration.

Answered from the vendors’ own pages

Arize AI: What does Arize AX cost?

Arize AX offers a free plan, a Pro plan at $50/month, and a custom-priced Enterprise plan, with pricing based on trace spans, storage, and retention needs.

Source
FireHydrant: What is included in the free FireHydrant plan?

The free plan supports up to 10 responders, includes 2 runbooks, Slack and Teams chatbot, 1 public status page, and basic integrations (3).

Source
Arize AI: Is there a free plan, and what are its limits?

The AX Free plan includes 25,000 trace spans and 1 GB of storage per month with 15-day retention, plus unlimited users, evaluations, and experiments.

Source
FireHydrant: How much does FireHydrant Pro cost?

FireHydrant Pro costs $25 per responder per month, billed annually. This includes 5 runbooks, unlimited status pages, and all core incident management features.

Source
Arize AI: What deployment options are available?

Free and Pro plans are SaaS-only, while Enterprise customers can choose SaaS or self-hosted deployment with custom SLAs.

Source
FireHydrant: Can I pay monthly for FireHydrant Pro?

No, the Pro plan requires annual billing to get the $25/responder/month rate. Contact sales for enterprise monthly billing options.

Source
FireHydrant: What AI features does FireHydrant offer?

FireHydrant AI is available in Enterprise plan and includes automated incident summaries, status page updates, live video transcription from Zoom and Google Meet, and triage assistance.

Source
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