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FireHydrant vs Langwatch

FireHydrant logo

FireHydrant

Logging

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

From
Free
Rated
-
Full reviewWebsite
Langwatch logo

Langwatch

Machine Learning

LLM engineering platform for testing and evaluating AI agents in production

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: FireHydrant free tier has limited functionality with only 2 runbooks; Langwatch free plan limited to 50k events per month, restricting larger deployments
  • They diverge on capability: FireHydrant covers Automated runbooks, Langwatch covers Agent simulation testing.

Where they differ

Only the attributes on which FireHydrant and Langwatch actually diverge.

Attributes where FireHydrant and Langwatch differ
AttributeFireHydrantLangwatch
Pricing modelsubscriptionTiered subscription with usage-based overage charges
PlatformsWeb, Slack, Microsoft Teams, MobileWeb, Docker, Kubernetes
CategoryLoggingMachine Learning
Founded2018Unknown

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 FireHydrant

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

Only in Langwatch

  • Agent simulation testing
  • LLM evaluation
  • OpenTelemetry tracing
  • Langy AI Engineer
  • Governance controls
  • Multiple deployment options
  • Framework support

What people use each for

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

FireHydrant

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

Langwatch

  • Continuous testing of AI agents before production deploymentnot FireHydrant
  • Automated test creation from product requirementsnot FireHydrant
  • LLM response quality evaluation and scoringnot FireHydrant
  • Production agent monitoring and cost trackingnot FireHydrant
  • Governance and access control for AI systemsnot FireHydrant

Where each one falls short

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

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

Langwatch

  • Free plan limited to 50k events per month, restricting larger deployments
  • Pricing in EUR may complicate budgeting for US-based teams
  • Usage-based overage model can create unpredictable costs
  • Self-hosted option requires DevOps expertise

Pricing, plan by plan

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

Langwatch

Free
  • DeveloperFree
    • 50k events per month
    • 14-day data access
    • 2 users
  • Growth$29/month
    • 200k events per month included
    • 5 EUR per 100k additional events
    • 30-day data retention
  • Enterprise$undefined/custom
    • Custom event limits
    • Hybrid, self-hosted or on-premises deployment
    • Custom SSO and RBAC

Which should you pick?

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

Choose Langwatch if

  • You need agent simulation testing.
  • You want to start without paying.
  • You work on Web, Docker, Kubernetes.
  • You also want llm evaluation.
Langwatch review

Questions people ask

Is FireHydrant or Langwatch better?
Neither clearly leads. FireHydrant starts at Free and Langwatch at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FireHydrant or Langwatch?
FireHydrant starts at Free and Langwatch at Free.
Does FireHydrant or Langwatch run on more platforms?
FireHydrant runs on Web, Slack, Microsoft Teams, Mobile. Langwatch runs on Web, Docker, Kubernetes.
Can I use FireHydrant for free?
Both have a free tier, so you can try either at no cost before committing.
What is FireHydrant best used for?
FireHydrant is most often used for manage incidents directly from slack or teams, automate incident response with runbooks, triage incidents and track ownership, run post-incident retrospectives. Of those, manage incidents directly from slack or teams and automate incident response with runbooks are not what Langwatch is typically brought in for.
What can FireHydrant do that Langwatch cannot?
FireHydrant covers Automated runbooks, On-call management, Service catalog, Incident response collaboration. Langwatch covers Agent simulation testing, LLM evaluation, OpenTelemetry tracing, Langy AI Engineer.

Answered from the vendors’ own pages

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
Langwatch: Is there a permanent free tier?

Yes, Langwatch's Developer plan is free forever with 50k events per month, 14-day data access, 2 users, and no credit card required. It is specifically designed for individual developers prototyping AI applications.

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
Langwatch: What is Langy and how does it save time?

Langy is an AI-powered tool that automates test creation. It converts product requirements into test scenarios, runs simulations, scores results, and generates pull requests with fixes in a median of 14 minutes.

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
Langwatch: What frameworks does Langwatch support?

Langwatch works with LangGraph, LangChain, CrewAI, OpenAI Agents, AWS Bedrock, Azure OpenAI, Vertex AI, and other major LLM frameworks and platforms.

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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