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Software Development · head to head

Braintrust vs Coralogix

Braintrust logo

Braintrust

Software Development

The active observability platform for agents

From
Free
Rated
-
Full reviewWebsite
Coralogix logo

Coralogix

Logging

Continuous Log Insights and Visibility

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Braintrust enterprise plan pricing not published, requires custom quote; Coralogix no self-hosted option; cloud-only SaaS requiring use of customer's AWS, Azure, or GCP infrastructure

Where they differ

Only the attributes on which Braintrust and Coralogix actually diverge.

Attributes where Braintrust and Coralogix differ
AttributeBraintrustCoralogix
Pricing modelfreemiumusage-based
PlatformsWebCloud-hosted (AWS, Azure, GCP)
CategorySoftware DevelopmentLogging
FoundedUnknown2015

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 Braintrust

Nothing recorded that Coralogix does not also cover.

Only in Coralogix

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

What people use each for

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

Braintrust

  • Monitoring production AI agents for qualitynot Coralogix
  • Detecting patterns in agent failuresnot Coralogix
  • Defining quality expectations before shipping agentsnot Coralogix
  • Tracking prompts and tool calls in productionnot Coralogix

Coralogix

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

Where each one falls short

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

Braintrust

  • Enterprise plan pricing not published, requires custom quote
  • Pro plan includes 6-12 months free discount for startups only

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

Pricing, plan by plan

Braintrust

Free
  • StarterFree
    • $10 model credits monthly included
    • 1 GB processed data monthly
    • 10000 scores monthly
  • Pro$249/month
    • $249 model credits monthly included
    • 5 GB processed data monthly
    • 50000 scores monthly
  • Enterprise$null/month
    • Custom data retention and export capabilities
    • RBAC and premium support
    • On-premises or hosted solutions available

Coralogix

Free

No published plan breakdown. See the Coralogix review.

Which should you pick?

Choose Braintrust if

  • You want to start without paying.
Braintrust review

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

Questions people ask

Is Braintrust or Coralogix better?
Neither clearly leads. Braintrust starts at Free and Coralogix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Braintrust or Coralogix?
Braintrust starts at Free and Coralogix at Free.
Does Braintrust or Coralogix run on more platforms?
Braintrust runs on Web. Coralogix runs on Cloud-hosted (AWS, Azure, GCP).
Can I use Braintrust for free?
Both have a free tier, so you can try either at no cost before committing.
What is Braintrust best used for?
Braintrust is most often used for monitoring production ai agents for quality, detecting patterns in agent failures, defining quality expectations before shipping agents, tracking prompts and tool calls in production. Of those, monitoring production ai agents for quality and detecting patterns in agent failures are not what Coralogix is typically brought in for.
What can Braintrust do that Coralogix cannot?
Coralogix covers Log aggregation, Machine learning analytics, Alerts, Distributed tracing.

Answered from the vendors’ own pages

Braintrust: Does Braintrust have a free plan?

Braintrust Starter plan is free and includes $10 model credits monthly, 1 GB processed data, 10000 scores monthly, and 14-day data retention with unlimited users and projects. No credit card required.

Source
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
Braintrust: How much does the Braintrust Pro plan cost?

Braintrust Pro plan costs $249 per month and includes $249 model credits, 5 GB processed data, 50000 scores monthly, and 30-day data retention. Qualifying startups receive 6-12 months free.

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
Braintrust: What are Braintrust's overage charges?

Braintrust charges overage rates after monthly allocations: model credits beyond monthly allotment are charged at token rates, data overage is $4 per GB on Starter or $3 per GB on Pro, scores overage is $2.50 per 1000 on Starter or $1.50 per 1000 on Pro. Extended data retention beyond the included period costs $0.50 per GB per month.

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
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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