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Coralogix vs Langwatch

Coralogix logo

Coralogix

Logging

Continuous Log Insights and Visibility

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: Coralogix no self-hosted option; cloud-only SaaS requiring use of customer's AWS, Azure, or GCP infrastructure; Langwatch free plan limited to 50k events per month, restricting larger deployments
  • They diverge on capability: Coralogix covers Log aggregation, Langwatch covers Agent simulation testing.

Where they differ

Only the attributes on which Coralogix and Langwatch actually diverge.

Attributes where Coralogix and Langwatch differ
AttributeCoralogixLangwatch
Pricing modelusage-basedTiered subscription with usage-based overage charges
PlatformsCloud-hosted (AWS, Azure, GCP)Web, Docker, Kubernetes
CategoryLoggingMachine Learning
Founded2015Unknown

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 Coralogix

  • Log aggregation
  • Machine learning analytics
  • Alerts
  • Distributed tracing
  • API
  • Webhooks
  • REST
  • Web support

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.

Coralogix

  • Enterprises requiring infinite log retention across logs, metrics, and tracesnot Langwatch
  • Organizations with cross-signal correlation needs (logs, metrics, traces unified)not Langwatch

Langwatch

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

Where each one falls short

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

Coralogix

  • No self-hosted option; cloud-only SaaS requiring use of customer's AWS, Azure, or GCP infrastructure
  • Pricing is purely usage-based per GB with no flat-rate subscription option; suitable for unpredictable workloads but no cost ceiling

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

Coralogix

Free

No published plan breakdown. See the Coralogix review.

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 Coralogix if

  • You need log aggregation.
  • You want to start without paying.
  • You work on Cloud-hosted (AWS, Azure, GCP).
  • You also want machine learning analytics.
Coralogix 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 Coralogix or Langwatch better?
Neither clearly leads. Coralogix 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, Coralogix or Langwatch?
Coralogix starts at Free and Langwatch at Free.
Does Coralogix or Langwatch run on more platforms?
Coralogix runs on Cloud-hosted (AWS, Azure, GCP). Langwatch runs on Web, Docker, Kubernetes.
Can I use Coralogix for free?
Both have a free tier, so you can try either at no cost before committing.
What is Coralogix best used for?
Coralogix is most often used for enterprises requiring infinite log retention across logs, metrics, and traces, organizations with cross-signal correlation needs (logs, metrics, traces unified). Of those, enterprises requiring infinite log retention across logs, metrics, and traces and organizations with cross-signal correlation needs (logs, metrics, traces unified) are not what Langwatch is typically brought in for.
What can Coralogix do that Langwatch cannot?
Coralogix covers Log aggregation, Machine learning analytics, Alerts, Distributed tracing. Langwatch covers Agent simulation testing, LLM evaluation, OpenTelemetry tracing, Langy AI Engineer.

Answered from the vendors’ own pages

Coralogix: How is Coralogix pricing structured and what are the per-unit costs?

Coralogix uses usage-based pricing with no tiered plans. All customers get identical feature access. Logs cost $0.42/GB, Traces cost $0.16/GB, Metrics cost $0.06/GB (1GB = 750 active time series), and AI costs $1.50 per 1M tokens.

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
Coralogix: Is a free trial available and what does it include?

Yes, you can sign up for a free 14-day trial with no credit card required. The trial includes full feature access with a quota of 8 units.

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
Coralogix: What features are included at all pricing levels and what happens if I exceed my quota?

All accounts include 24/7 real human support, unlimited data sources, unlimited users and hosts, unlimited team members, and enterprise features like RBAC, SSO, audit trails, and compliance controls. You can pay as-you-go to exceed your daily quota up to 2X.

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
Coralogix: Do unused units roll over to the next billing period?

No, unused units or tokens expire at subscription term end with no rollover, refund, or credit options.

Source
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