Comet

ML Experiment Tracking Software

Free planFree trialAPILinuxmacOSSelf-hostedWebWindows

8.0#1 of 37$19/mofirst paid tier

Overview

Comet is ranked #1 of 37 in ML experiment tracking software on Specifiction. It runs on API, Linux, macOS, Self-hosted, Web, Windows. There is a free plan. A free trial is offered. Paid plans start at $19/mo.

Comet plans and pricing

All plans

Open Source Free Free Full AI observability and agent testing feature set · agent tracing and analysis · test suites and assertions · agent playground comet.com · 28 Sept 2026

Free Cloud Free Free plan Up to 10 team members · 25k spans per month · 60-day data retention comet.com · 28 Sept 2026

MLOps Free Free Free plan 1 platform user · fair usage policy · 100GB data usage comet.com · 28 Sept 2026

Pro Cloud $19/mo Per month Up to 50 team members · 100k spans per month · 60-day data retention comet.com · 28 Sept 2026

MLOps Pro $19/mo Per user/month Up to 10 users · 1,500 training hours included · 500GB data usage comet.com · 28 Sept 2026

Enterprise Not published Custom Unlimited team members · custom usage plans · flexible deployments · dedicated support and SLAs comet.com · 28 Sept 2026

Compared on ML experiment tracking software

Free plan: Yescomet.com
Paid from: $19/user/mocomet.com
Run comparison: Yescomet.com
Artifact tracking: Yescomet.com
Dataset versioning: Yescomet.com
Model registry: Yescomet.com
Deployment options: hybridcomet.com
API and SDK access: Yescomet.com

Facts

Products: Comet says it offers two flagship product families, Opik and MLOps, on the same underlying platform.comet.com · 28 Sept 2026
Opik: Opik provides LLM observability and evaluation for generative AI applications and agentic systems.comet.com · 28 Sept 2026
Tracing: Opik traces application execution paths, including context retrieval, model responses, and tool calls.comet.com · 28 Sept 2026
Evaluation: Opik provides test suites, datasets, experiments, and built-in LLM-as-a-judge and heuristic evaluation metrics.comet.com · 28 Sept 2026
MLOps: Comet MLOps provides experiment tracking, dataset management, model registry, and model production monitoring.comet.com · 28 Sept 2026
Integrations: Opik lists integrations with more than 40 AI frameworks, model providers, and gateways, including LangChain, OpenAI, Google ADK, LangGraph, and CrewAI.comet.com · 28 Sept 2026
OpenTelemetry: Opik supports OpenTelemetry for tracking AI applications in Ruby, Java, and other languages.comet.com · 28 Sept 2026
Self-hosting: The Opik open-source version can be self-hosted, and Enterprise offers flexible deployment options.comet.com · 28 Sept 2026
Compliance: The Trust Center lists ISO 9001:2015, ISO/IEC 27001:2022, and SOC 2 Type 2 compliance.trust.comet.com · 28 Sept 2026
Enterprise access: The Enterprise plan lists single sign-on, service accounts, and view-only users.comet.com · 28 Sept 2026
Support: The pricing page lists community support for all plans, email support for paid cloud Pro and Enterprise, and dedicated support and SLAs for Enterprise.comet.com · 28 Sept 2026
Notable limits: Opik Free Cloud includes up to 10 team members, 25k spans per month, and 60-day data retention; Pro Cloud includes up to 50 team members and 100k spans per month.comet.com · 28 Sept 2026
Audience: Comet describes MLOps as designed for teams building and training machine learning models and Opik as suited to applications or agents that make LLM calls.comet.com · 28 Sept 2026
Company: Comet says it is headquartered in New York City, has offices in Tel Aviv, and launched in 2017.comet.com · 28 Sept 2026