Machine Learning · head to head
Comet ML vs Palantir Foundry
Comet ML
Machine Learning
Platform for tracking, comparing, and optimizing ML experiments
- From
- Free
- Rated
- -
Palantir Foundry
Machine Learning
Operating system for modern enterprise
- From
- On request
- Rated
- -
The short version
- Only Comet ML has a free tier, so it costs nothing to try first.
- Each has a real cost: Comet ML the free cloud tier caps data at 25,000 spans a month with 60 day retention; Palantir Foundry custom pricing model with no public information makes budgeting difficult
- They diverge on capability: Comet ML covers Experiment tracking, Palantir Foundry covers Data integration.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Comet ML and Palantir Foundry actually diverge.
| Attribute | Comet ML | Palantir Foundry |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | freemium | subscription |
| Free tier | Yes | No |
| Platforms | Web, Linux, Mac, Windows | Web |
| Founded | 2017 | 2003 |
Identical on both: 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 Comet ML
- Experiment tracking
- Code versioning
- Model registry
- Hyperparameter optimization
- Production monitoring
- PyTorch
- TensorFlow
- Keras
Only in Palantir Foundry
- Data integration
- Ontology modeling
- Pipeline builder
- Operational analytics
- Governance
- Enterprise systems
- Cloud platforms
- IoT
Both cover
- Web support
What people use each for
The jobs each tool is most often brought in to do.
Comet ML
- LLM observability and monitoringnot Palantir Foundry
- AI agent testing and debuggingnot Palantir Foundry
- Experiment tracking for machine learningnot Palantir Foundry
- Model registry and version managementnot Palantir Foundry
- ML model training monitoringnot Palantir Foundry
Palantir Foundry
- Machine learningnot Comet ML
- Data analysisnot Comet ML
- Model trainingnot Comet ML
- Predictive analyticsnot 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
Palantir Foundry
- Custom pricing model with no public information makes budgeting difficult
- Steep implementation and configuration requirements
- Requires significant technical expertise to operate effectively
- Long sales cycle typical for enterprise software
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
Palantir Foundry
On request- EnterpriseFree
- Full platform
- Custom deployment
- Enterprise support
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 Palantir Foundry if
- You need data integration.
- You also want ontology modeling.
Questions people ask
- Is Comet ML or Palantir Foundry better?
- Neither clearly leads. Comet ML starts at Free and Palantir Foundry at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Comet ML or Palantir Foundry?
- Comet ML has a free tier; the other does not. Paid plans start at Free for Comet ML and On request for Palantir Foundry.
- Does Comet ML or Palantir Foundry run on more platforms?
- Comet ML runs on Web, Linux, Mac, Windows. Palantir Foundry runs on Web.
- Can I use Comet ML for free?
- Yes. Comet ML has a free tier, so you can try it without paying. Palantir Foundry starts at On request.
- 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 Palantir Foundry is typically brought in for.
- What can Comet ML do that Palantir Foundry cannot?
- Comet ML covers Experiment tracking, Code versioning, Model registry, Hyperparameter optimization. Palantir Foundry covers Data integration, Ontology modeling, Pipeline builder, Operational analytics. Both handle Web support.
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.
SourcePalantir Foundry: What is Palantir Foundry designed for?
Palantir Foundry is an enterprise data integration and analytics platform supporting end-to-end data pipelines, covering ingestion, processing, pipeline building, monitoring, and creating analytics dashboards with both code and no-code tools.
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.
SourcePalantir Foundry: How much does Palantir Foundry cost?
Palantir Foundry uses custom pricing. No public list pricing is available. Enterprise customers and government agencies must contact Palantir directly for formal quotes and licensing terms.
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.
SourcePalantir Foundry: Who uses Palantir Foundry?
Palantir Foundry serves enterprise and government organizations needing complex data integration, analytics, and operational intelligence across large-scale data environments.
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 Palantir Foundry
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