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Machine Learning · head to head

Langwatch vs JMP

Langwatch logo

Langwatch

Machine Learning

LLM engineering platform for testing and evaluating AI agents in production

From
Free
Rated
-
Full reviewWebsite
JMP logo

JMP

Machine Learning

Statistical discovery software from SAS

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Langwatch free plan limited to 50k events per month, restricting larger deployments; JMP pricing information not published on main website; requires following purchase or trial links to view rates
  • They diverge on capability: Langwatch covers Agent simulation testing, JMP covers Interactive statistics.

Where they differ

Only the attributes on which Langwatch and JMP actually diverge.

Attributes where Langwatch and JMP differ
AttributeLangwatchJMP
Pricing modelTiered subscription with usage-based overage chargessubscription
PlatformsWeb, Docker, KubernetesMac, Windows
FoundedUnknown1976

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

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 Langwatch

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

Only in JMP

  • Interactive statistics
  • Dynamic visualization
  • Design of experiments
  • Predictive modeling
  • Quality control
  • SAS
  • Python
  • R

What people use each for

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

Langwatch

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

JMP

  • Machine learningnot Langwatch
  • Data analysisnot Langwatch
  • Model trainingnot Langwatch
  • Predictive analyticsnot Langwatch

Where each one falls short

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

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

JMP

  • Pricing information not published on main website; requires following purchase or trial links to view rates
  • No publicly listed pricing tiers or feature comparison by cost

Pricing, plan by plan

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

JMP

Free
  • TrialFree
    • 30-day trial
    • Full features
  • JMP$1785/year
    • Core JMP
    • Standard features

Which should you pick?

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

Choose JMP if

  • You need interactive statistics.
  • You want to start without paying.
  • You work on Mac, Windows.
  • You also want dynamic visualization.
JMP review

Questions people ask

Is Langwatch or JMP better?
Neither clearly leads. Langwatch starts at Free and JMP at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Langwatch or JMP?
Langwatch starts at Free and JMP at Free.
Does Langwatch or JMP run on more platforms?
Langwatch runs on Web, Docker, Kubernetes. JMP runs on Mac, Windows.
Can I use Langwatch for free?
Both have a free tier, so you can try either at no cost before committing.
What is Langwatch best used for?
Langwatch is most often used for continuous testing of ai agents before production deployment, automated test creation from product requirements, llm response quality evaluation and scoring, production agent monitoring and cost tracking. Of those, continuous testing of ai agents before production deployment and automated test creation from product requirements are not what JMP is typically brought in for.
What can Langwatch do that JMP cannot?
Langwatch covers Agent simulation testing, LLM evaluation, OpenTelemetry tracing, Langy AI Engineer. JMP covers Interactive statistics, Dynamic visualization, Design of experiments, Predictive modeling.

Answered from the vendors’ own pages

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
JMP: How much does JMP cost?

JMP pricing is not displayed on the main website. The site offers options to Try JMP for free or Buy JMP, but specific pricing details are not visible until users follow the purchase or trial links. Exact costs and licensing options must be obtained through the purchase flow.

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
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
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