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    3. Comet ML

    Comet ML

    To empower developers and teams to achieve business value with AI by providing the infrastructure needed to develop, evaluate, and improve modern AI applications.

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    At a Glance

    1Tool Listed
    4Products
    19Tool Views
    6Capabilities
    Discussions
    New York, NYHeadquarters
    2017Est.
    200Employees
    $74.8MRaised
    Focus Areas
    LLM Evaluations
    Observability Platforms
    LLM Orchestration
    Connect
    Latest News
    Interview with CEO Gideon Mendels on future of ML developmentMar 18, 2026
    Comet Joins Amazon SageMaker Partner AI AppsDec 4, 2024
    Markets
    • Enterprise AI teams
    • Startups
    • Machine Learning Engineers
    • Data Scientists

    AI Tools by Comet ML

    (1)
    View Opik
    Opik tool icon

    Opik

    Open Source LLM Evaluation Platform

    LLM EvaluationsObservabilityLLM Orchestration

    Discussions

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    Latest News

    03/18/2026

    Interview with CEO Gideon Mendels on future of ML development

    AI Today Podcast
    12/04/2024

    Comet Joins Amazon SageMaker Partner AI Apps

    Comet Press Release
    12/02/2024

    Comet Launches Opik, an Open Source LLM Evaluation Platform

    Comet Press Release
    10/01/2024

    Comet reaches record $17M revenue and 200 employees

    Technology Magazine

    Products & Services

    4
    Comet MLOps
    2018

    Core platform for experiment tracking, dataset versioning, and model management for traditional ML.

    Opik
    2024-12

    Open-source LLM observability and evaluation platform for GenAI applications and agents.

    Kangas
    2022-10

    Open-source tool for exploring and debugging large-scale visual and tabular datasets.

    Model Production Monitoring (MPM)
    2021

    Tooling for monitoring model performance, data drift, and custom metrics in production.

    Market Position

    Comet positions itself as the unified infrastructure layer for the entire AI lifecycle, bridging the gap between training and production with a focus on reproducibility and engineering discipline.

    Leadership

    Founders

    GM

    Gideon Mendels

    Co-founder and CEO. Former computer scientist and ML researcher. Co-founded GroupWize (NLP platform). Previously worked at Google on hate speech and deception detection and at Columbia University.

    NL

    Nimrod Lahav

    Co-founder and CTO. Former computer scientist and software engineer. Co-founded GroupWize. Held engineering leadership roles at Wix, VMware, and Amdocs.

    Executive Team

    GM

    Gideon Mendels

    CEO & Co-founder

    ML researcher and entrepreneur; former Google engineer and GroupWize co-founder.

    NL

    Nimrod Lahav

    CTO & Co-founder

    Software engineering leader; former Wix and VMware engineer; GroupWize co-founder.

    Board of Directors

    AN
    Alex Niehenke
    Board Member (Partner at Scale Venture Partners)
    MC
    Mackey Craven
    Board Member (Partner at OpenView)

    Founding Story

    Founded by Gideon Mendels and Nimrod Lahav after their experience running GroupWize, where they managed complex NLP models. They realized that AI development lacked the rigorous engineering infrastructure of traditional software, leading them to build Comet to treat AI as an engineering discipline.

    Business Model

    Revenue
    $17M ARR (as of late 2024)

    Revenue Model

    SaaS subscription with tiered cloud plans and custom enterprise licensing.

    Pricing Tiers

    OSS (Open Source)
    $0

    Free, self-hosted via GitHub with full feature set.

    Free Cloud
    $0

    Up to 10 team members, 25k spans/month, 60-day retention.

    Pro Cloud
    $19/month

    Up to 50 team members, 100k spans/month; customizable limits.

    Enterprise
    Custom

    Unlimited members, SSO, dedicated support, custom deployments.

    Private

    Target Markets

    Industries & Segments
    • Enterprise AI teams
    • Startups
    • Machine Learning Engineers
    • Data Scientists
    Use Cases
    • Building and debugging LLM applications
    • Comparing ML experiment results
    • Monitoring production model performance
    • Managing dataset lineage
    • Optimizing AI agents
    Notable Customers
    • Uber
    • Netflix
    • Etsy
    • Zappos

    Quick Facts

    Headquarters
    New York, NY
    Founded
    2017
    Entity Type
    Inc.
    Employees
    200
    Total Funding
    $74.8M
    Investors
    Scale Venture Partners, OpenView Venture Partners
    Office Locations
    New York City
    Tel Aviv

    Funding History

    Series B$50M
    2021-11-18
    OpenView Venture Partners
    Series A$13M
    2021-04-01
    Scale Venture Partners
    Venture Round$4.5M
    2020-04-01
    Two Sigma Ventures

    History & Milestones

    2024-12

    Launched Opik, an open-source LLM evaluation platform, and joined Amazon SageMaker Partner AI Apps.

    2022-10

    Launched Kangas, an open-source smart data-exploration tool.

    2021-01

    Acquired Stakion to enhance model production monitoring capabilities.

    2021-04

    Raised $13M Series A led by Scale Venture Partners.

    2021-11

    Raised $50M Series B led by OpenView Venture Partners.

    Key Capabilities

    6
    Experiment tracking
    Model production monitoring
    Dataset versioning
    LLM observability & tracing
    Data drift detection
    Collaborative dashboards

    Integrations & Partnerships

    Platform Integrations

    • PyTorch
    • TensorFlow
    • Scikit-learn
    • Hugging Face
    • LangChain
    • OpenTelemetry

    Key Partnerships

    Amazon SageMaker
    Snowflake
    Google Cloud

    Connect

    Website
    comet.com
    GitHub
    comet-ml
    LinkedIn
    comet-ml

    AI Topics

    3

    Comet ML focuses on these topics:

    LLM Evaluations(1)
    Observability Platforms(1)
    LLM Orchestration(1)
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