Machine Learning · head to head
Comet ML vs Healthchecks
Comet ML
Machine Learning
Platform for tracking, comparing, and optimizing ML experiments
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Comet ML the free cloud tier caps data at 25,000 spans a month with 60 day retention; Healthchecks free tier limited to 20 jobs, restricting scale for small teams
- They diverge on capability: Comet ML covers Experiment tracking, Healthchecks covers Ping URL monitoring.
Where they differ
Only the attributes on which Comet ML and Healthchecks actually diverge.
| Attribute | Comet ML | Healthchecks |
|---|---|---|
| Pricing model | freemium | Per-job monitoring with fixed tiers |
| Platforms | Web, Linux, Mac, Windows | Web, API |
| Category | Machine Learning | Logging |
| Founded | 2017 | 2015 |
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 Comet ML
- Experiment tracking
- Code versioning
- Model registry
- Hyperparameter optimization
- Production monitoring
- PyTorch
- TensorFlow
- Keras
Only in Healthchecks
- Ping URL monitoring
- Customizable schedules
- Event logs
- Status badges
- Email alerts
- SMS and phone alerts
- Multiple integrations
What people use each for
The jobs each tool is most often brought in to do.
Comet ML
- LLM observability and monitoringnot Healthchecks
- AI agent testing and debuggingnot Healthchecks
- Experiment tracking for machine learningnot Healthchecks
- Model registry and version managementnot Healthchecks
- ML model training monitoringnot Healthchecks
Healthchecks
- Monitoring cron jobs that run on schedulesnot Comet ML
- Alerting teams when background tasks failnot Comet ML
- Tracking Kubernetes CronJob execution healthnot Comet ML
- Monitoring Jenkins builds and deploymentsnot Comet ML
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Comet ML
- The free cloud tier caps data at 25,000 spans a month with 60 day retention
- Retention stays at 60 days even on the paid Pro plan, and extending it is a $29 per 100k spans add on
- Overage on Pro is $5 per additional 100,000 spans
- The free MLOps tier is a single user with 100 GB of storage and training hours governed by a fair usage policy
- Pro MLOps is $19 per user per month and caps the team at 10 users
Healthchecks
- Free tier limited to 20 jobs, restricting scale for small teams
- Requires explicit ping integration into each job
- No workflow orchestration or job scheduling capabilities
- SMS and phone credits consumed separately on paid plans
- Limited to ping-based detection without deep job introspection
Pricing, plan by plan
Comet ML
Free- Free CloudFree
- Up to 10 team members
- 25,000 spans per month
- 60-day data retention
- Pro Cloud$19/month
- Up to 50 team members
- 100,000 spans per month
- 60-day data retention
- MLOps FreeFree
- 1 user with fair usage policy
- Experiment tracking
- Dataset management
- MLOps Pro$19/user/month
- Up to 10 users
- 1,500 training hours included
- 500GB storage included
Healthchecks
Free- HobbyistFree
- Monitor 20 jobs
- 100 log entries per job
- Email alerts
- Supporter$5/month
- Monitor 20 jobs
- 100 log entries per job
- Support the service financially
- Business$20/month
- Monitor 100 jobs
- 1000 log entries per job
- 50 SMS and WhatsApp credits
- Business Plus$80/month
- Monitor 1000 jobs
- 1000 log entries per job
- 500 SMS and WhatsApp credits
Which should you pick?
Choose Comet ML if
- You need experiment tracking.
- You want to start without paying.
- You work on Web, Linux, Mac, Windows.
- You also want code versioning.
Choose Healthchecks if
- You need ping url monitoring.
- You want to start without paying.
- You work on Web, API.
- You also want customizable schedules.
Questions people ask
- Is Comet ML or Healthchecks better?
- Neither clearly leads. Comet ML starts at Free and Healthchecks at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Comet ML or Healthchecks?
- Comet ML starts at Free and Healthchecks at Free.
- Does Comet ML or Healthchecks run on more platforms?
- Comet ML runs on Web, Linux, Mac, Windows. Healthchecks runs on Web, API.
- Can I use Comet ML for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Comet ML best used for?
- Comet ML is most often used for llm observability and monitoring, ai agent testing and debugging, experiment tracking for machine learning, model registry and version management. Of those, llm observability and monitoring and ai agent testing and debugging are not what Healthchecks is typically brought in for.
- What can Comet ML do that Healthchecks cannot?
- Comet ML covers Experiment tracking, Code versioning, Model registry, Hyperparameter optimization. Healthchecks covers Ping URL monitoring, Customizable schedules, Event logs, Status badges.
Answered from the vendors’ own pages
Comet ML: Does Comet.ml offer a free plan?
Yes, Comet.ml offers free tiers for both Opik (cloud observability) and MLOps platforms. Free Cloud Opik includes up to 10 team members and 25,000 spans/month. Free MLOps tier is limited to 1 user.
SourceHealthchecks: What does the free Hobbyist plan include?
The Hobbyist plan ($0/month) includes monitoring for 20 jobs, 100 log entries per job, and email alerts with no credit card required.
SourceComet ML: How many team members can use the free Comet.ml tier?
Free Cloud supports up to 10 team members. The Pro Cloud plan supports up to 50 team members at $19/month.
SourceHealthchecks: What is the difference between Business and Business Plus?
Business ($20/month) monitors 100 jobs with 50 SMS credits. Business Plus ($80/month) monitors 1000 jobs with 500 SMS credits and priority support.
SourceComet ML: What is a span in Comet.ml pricing?
A span represents a single tracked operation such as model requests or function calls. Free Cloud tier includes 25,000 spans per month.
SourceHealthchecks: Do nonprofits and open-source projects get special pricing?
Yes, open-source projects and nonprofits receive the Business plan at no cost.
SourceComet ML: Does Comet.ml offer academic pricing?
Yes, a free Pro plan is available for academic users; verification is required via signup.
SourceRelated pages
More on Healthchecks
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