Comet

Open-source platform for tracing, evaluating, and monitoring large language model applications and AI agents

Vendor
Comet
Also known as
comet

Available worldwide

What is Comet?

An observability and evaluation platform that provides comprehensive tracing for LLM applications, RAG systems, and agentic workflows, with built-in support for experiments, evaluations, prompt management, and production dashboards. Designed to cover the full lifecycle from development through production deployment.

Independently observed

Comet pricing

Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.

Pricing as of verify at live pricing ↗Independently observed
HybridFree tier

Free tier available; open-source self-hosted option under Apache-2.0; enterprise plans available

Free Tier

Free
Free

No credit card required, generous free tier for individual use

Open Source Self-Hosted

-

Apache-2.0 licensed, deployable on Kubernetes with Helm

What Comet does

The capabilities that matter for experiment tracking, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

Capabilities
Deployment model
Self hosted
Open source
✓
Metrics and artifact logging
✓
Native hyperparameter sweeps
-
Run comparison diffing
-
Model registry bundled
-
Data versioning integration
-
Distributed multi node tracking
-
Team collaboration workspaces
✓
LLM genai eval tracking
✓
RBAC governance
-
SOC2
-
Pricing model
Open source self host
Independently observed

Platform & deployment

Independently observed
Platforms
  • CLI
  • Web
Deployment
  • Cloud / SaaS
  • Hybrid
  • Self-hosted

Integrations (4)

Independently observed
  • LangChain
  • OpenAI
  • Claude Code
  • Codex

Comet FAQ

Common questions about Comet, answered from independent, dated evidence.

What is Comet?

A platform that helps developers trace agent execution, evaluate performance with automated metrics, and monitor systems in production. It provides experiment management, dataset handling, and tools to identify and fix agent failures before users encounter them. It is indexed under Experiment Tracking.

Source: https://www.comet.com

Is Comet free?

Comet offers a free tier, so you can start without paying. Paid plans are also available: Free Tier and Open Source Self-Hosted. Pricing changes often, so verify at source before relying on it.

Source: https://www.comet.com

What platforms does Comet support?

We have confirmed browser-based access to Comet. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.

Source: https://www.comet.com

Can Comet be self-hosted?

Yes. Comet can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.

Source: https://www.comet.com

What does Comet integrate with?

We have confirmed 4 integrations for Comet, including LangChain, OpenAI, Claude Code and Codex. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://www.comet.com

What security certifications does Comet have?

We have independently confirmed GDPR for Comet. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Comet not holding them. Always confirm compliance directly before you rely on it.

Source: https://www.comet.com/site/privacy-policy-ccpa/

Comet alternatives

Other experiment tracking we track, ranked by the same independent score.

All Comet alternatives, ranked →

Compare Comet

Side by side against other experiment tracking, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Comet, not the verdict.

Balanced composite 52 / 100
low · 5%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Capabilities670.085.4✓
Integrations510.052.8✓
Stars00.050.0-
Dependent projects00.050.0-
Development activity00.140.0-
Release cadence00.080.0-
Security posture50.120.0-
Package downloads00.040.0-
Security score00.050.0-
Developer Q&A activity00.140.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Content

AttributeValueEvidence
Faq6 itemsmediumsource · 2026-09-10 · 62%

Features

AttributeValueEvidence
CapabilitiesOpen source: Yes · Pricing model: open-source-self-host · Deployment model: self-hosted · Llm genai eval tracking: Yes · Metrics and artifact logging: Yes · Team collaboration workspaces: Yesmediumsource · 2026-09-28 · 60%

Integrations

AttributeValueEvidence
Count60mediumsource · 2026-08-19 · 60%

Market

AttributeValueEvidence
AvailabilityPrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: …highsource · 2026-08-19 · 75%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-09-28 · 60%
Modelopen_sourcemediumsource · 2026-09-28 · 60%
Price levelfreemediumsource · 2026-09-28 · 60%
TransparentYesmediumsource · 2026-09-28 · 60%

Security

AttributeValueEvidence
GdprYeshighsource · 2026-08-19 · 75%
Still deciding?

Is Comet the right choice for you?

Tell us the job, the constraints and what you weigh most, and we will rank Comet against the rest of the experiment tracking we index, using the same dated evidence weighted your way.

Free to run, no account needed to start. How the evaluation works

For the makers of Comet

Is this your product?

This profile was built from public sources without asking you. You can take the badge below and use it anywhere, and you can claim the profile to correct anything we got wrong. Both are free, and neither moves Comet up or down: nobody can buy rank here, including you.

Take the badge

Live, always current, and free to use on your own site. It shows Comet's independent score and links back to this profile.

Comet, verified on vioscaleAI
HTML
<a href="https://www.vioscale.ai/software/comet" target="_blank" rel="noopener">
  <img src="https://www.vioscale.ai/badge/software/comet.svg" alt="Comet, verified on vioscaleAI" width="330" height="76" loading="lazy" />
</a>
Markdown, for a README →
Markdown
[![Comet, verified on vioscaleAI](https://www.vioscale.ai/badge/software/comet.svg)](https://www.vioscale.ai/software/comet)

Claim the profile

Verify you control the domain, then point us at the pages that state the facts about Comet and add your own description and media. Free, and it does not change the score.

  • Correct anything wrong, with evidence
  • Point our crawler at the pages that matter
  • Write your own description and add media
Claim Comet

Not the owner? How vendor profiles work

For AI & developers

This profile is machine-readable and citable. Fetch it as JSON, Markdown, or GraphQL, or via MCP.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

Last updated . Canonical URI: https://www.vioscale.ai/software/comet.