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Machine Learning · head to head

Comet ML vs Cursor

Comet ML logo

Comet ML

Machine Learning

Platform for tracking, comparing, and optimizing ML experiments

From
Free
Rated
-
Full reviewWebsite
Cursor logo

Cursor

Software Development

The AI-first code editor

From
Free
Rated
-
Full reviewWebsite

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; Cursor cannot work fully offline; AI features require internet connection
  • They diverge on capability: Comet ML covers Experiment tracking, Cursor covers AI code completion.

Where they differ

Only the attributes on which Comet ML and Cursor actually diverge.

Attributes where Comet ML and Cursor differ
AttributeComet MLCursor
Pricing modelfreemiumUnknown
PlatformsWeb, Linux, Mac, WindowsWindows, Macos, Linux
CategoryMachine LearningSoftware Development
Founded20172022

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 Cursor

  • AI code completion
  • Natural language editing
  • Codebase chat
  • Multi-file editing
  • Code generation
  • Bug fixing assistance
  • Refactoring suggestions
  • AI pair programming

What people use each for

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

Comet ML

  • LLM observability and monitoringnot Cursor
  • AI agent testing and debuggingnot Cursor
  • Experiment tracking for machine learningnot Cursor
  • Model registry and version managementnot Cursor
  • ML model training monitoringnot Cursor

Cursor

  • AI-assisted codingnot Comet ML
  • Code generationnot Comet ML
  • Bug fixingnot Comet ML
  • Refactoringnot Comet ML
  • Learning new codebasesnot Comet ML
  • Rapid prototypingnot 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

Cursor

  • Cannot work fully offline; AI features require internet connection
  • Local models require requests to route through Cursor's backend, not true localhost support
  • Free tier capped at 2,000 completions per month
  • Codebase indexing uploads code chunks to compute embeddings, with file caching handled server-side

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

Cursor

Free
  • HobbyFree
    • 2,000 completions/month
    • 50 slow premium requests
    • Basic autocomplete
  • Pro$20/month
    • Unlimited completions
    • 500 fast premium requests
    • Composer multi-file editor
  • Pro+$60/month
    • 3x Pro limits on Agent requests
    • Priority feature access
  • Teams Standard$40/user/month
    • All Individual Pro features
    • Centralized billing
    • SAML/OIDC SSO

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.
Comet ML review

Choose Cursor if

  • You need ai code completion.
  • You want to start without paying.
  • You work on Windows, Macos, Linux.
  • You also want natural language editing.
Cursor review

Questions people ask

Is Comet ML or Cursor better?
Neither clearly leads. Comet ML starts at Free and Cursor at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Comet ML or Cursor?
Comet ML starts at Free and Cursor at Free.
Does Comet ML or Cursor run on more platforms?
Comet ML runs on Web, Linux, Mac, Windows. Cursor runs on Windows, Macos, Linux.
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 Cursor is typically brought in for.
What can Comet ML do that Cursor cannot?
Comet ML covers Experiment tracking, Code versioning, Model registry, Hyperparameter optimization. Cursor covers AI code completion, Natural language editing, Codebase chat, Multi-file editing.

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.

Source
Cursor: What's included in Cursor's free tier and what are its limits?

The free Hobby plan provides 2,000 completions per month and 50 slow premium requests, with access to basic autocomplete features. Codebase-wide indexing and the Composer multi-file editor are not available on the free plan.

Source
Comet 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.

Source
Cursor: Does Cursor require an internet connection to edit code?

While Cursor can open and edit files locally, its AI features including autocomplete, chat, agents, and codebase-aware reasoning require internet access to cloud-hosted models.

Source
Comet 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.

Source
Cursor: Can I use Cursor with local models running on my machine?

Cursor can integrate with local models, but requests still route through Cursor's backend for prompt building. True localhost mode without external endpoints is not supported. The paid plan ($20+/month) is required to use local models.

Source
Comet ML: Does Comet.ml offer academic pricing?

Yes, a free Pro plan is available for academic users; verification is required via signup.

Source
Cursor: What privacy controls does Cursor offer?

Cursor offers Privacy Mode (enabled on paid Team plans) which prevents customer data from being used for model training, with zero data retention agreements with all AI providers. When disabled, Cursor may use codebase data to improve features.

Source
Cursor: What are the differences between Pro and Pro+ plans?

Pro ($20/month) includes unlimited completions and 500 fast premium requests, while Pro+ ($60/month) provides 3x those request limits, priority feature access, and extended Agent capabilities.

Source
Cursor: Does Cursor support SSO and on which plan?

SSO with SAML/OIDC is included on Teams Standard ($40/user/month) and higher plans, with full team administration and audit logs.

Source
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