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ML Operations

Comet

Experiment management and the open source Opik LLM observability tool

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About Comet

Comet sells experiment management for ML teams, including tracking, artifact and dataset management, a model registry and production monitoring. It also develops Opik, an open source platform for tracing, evaluating and monitoring LLM applications and agents.

Common use cases

  • Comparing training runs
  • Debugging LLM agents
  • Model versioning
  • Evaluating prompts

Social listening

What people are saying about Comet

PeerSpot reviewers value Comet's experiment visibility, reproducibility and support, and buyers typically plan for dashboard performance, scaling and cost.

What stands out

  • Reviewers say it keeps experiment results and model metrics in one place, easing comparison and sharing.
  • Users report time savings and improved reproducibility.

Things to consider

  • Worth testing dashboard performance and run filtering with many experiments.
  • Worth confirming scalability, stability and security requirements.
  • Worth modeling cost and reviewing AI agent summaries for accuracy.
Sources (1)

Themes summarized from public reviews, community discussion and press coverage as of November 2026. They reflect public discussion, not a rating or an endorsement by AI Connect.

Products and services

Comet Experiment Management

Tracking of experiments, artifacts, datasets and model versions.

Opik

Open source LLM and agent observability with tracing and evaluations.

Pricing and editions. Opik is free to self-host, with a paid cloud tier and custom enterprise pricing, per a third-party article.

Key features

  • Experiment tracking
  • Model registry
  • Artifact management
  • LLM tracing
  • Online evaluations
  • Self-hosting

Integrations

  • PyTorch
  • TensorFlow
  • scikit-learn
  • Hugging Face
  • OpenAI
  • LangChain

Comet alternatives

FAQs

Is anything open source?

Yes, Opik is open source and can be self-hosted.

What does Experiment Management cover?

Tracking, artifacts, datasets, registry and monitoring.

How is it priced?

Free and paid tiers; details on the vendor site.

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