Comet offers two product families on one platform: Opik for observing and evaluating LLM applications, and MLOps for machine-learning work.
Alternatives to Weights & Biases
Weights & Biases brings experiment tracking, model and dataset versioning, and AI application monitoring into one platform for building AI agents, applications, and models. W&B Models visualizes experiments and supports hyperparameter optimization with Sweeps, while Weave traces, evaluates, and monitors applications and agents. Registry adds versioning, lineage, aliases, governance, and access control, with integrations including OpenAI, Anthropic, and LangChain. Deployment…
DagsHub is a platform for managing machine-learning projects across data collection, dataset curation and annotation, experimentation, and model management.
Metaflow is a free, open-source Python library for developing and operating data-intensive data science, machine learning, and AI applications.
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ClearML
ClearML is an AI infrastructure platform organized into three layers: Infrastructure Control Plane, AI Development Center, and GenAI App Engine.
Free planWebAPILinuxmacOS7.4From $15 a month - 5

ZenML
ZenML orchestrates AI and machine-learning pipelines and Python-based agents.
Free planWebAPILinuxmacOS7.1From $999 a month - 6
Lamin
Lamin is built around LaminDB, an open-source, format-agnostic lakehouse and programmable memory layer for R&D.
Free planWebAPISelf-hosted6.7From $20 a month - 7

MLRun
Free planWebAPILinuxmacOS6.6Free plan - 8

InstantML
InstantML is an experiment-tracking service for logging machine-learning runs, comparing metrics, inspecting artifacts, and exporting data.
Free planWebAPI6.5$199 usage-based - 9
Rubicon-ML
Rubicon-ML is an open-source Python package for capturing and reviewing model training and execution information.
Free planWebAPILinuxSelf-hosted6.5Free plan - 10
TensorBoard
TensorBoard is a free suite of visualization tools for understanding, debugging and optimizing TensorFlow programs during machine learning experiments.
Free planWebAPILinuxmacOS6.5Free plan - 11

Hopsworks AI Lakehouse
Hopsworks AI Lakehouse is a platform for building batch, real-time, and LLM-based AI systems using open standards.
Free planWebAPILinuxSelf-hosted6.4Free plan - 12
Trackio
Trackio is a Python library for recording machine-learning experiments, with a dashboard that groups runs so you can compare metrics and configuration.
Free planWebAPILinuxmacOS6.4Free plan - 13
Midcore Tracks
WebLinuxmacOSWindows6.3 - 14
LabML
LabML is an open-source platform for monitoring deep learning experiments and hardware usage.
AndroidiOSWebAPI6.2 - 15
MLflow GenAI Evaluation
MLflow GenAI Evaluation helps teams assess and monitor LLM applications and AI agents through development and production.
Free planWebAPISelf-hosted6.1Free plan - 16

mlop
mlop is an open-source experiment tracking platform for machine learning teams, available through web and self-hosted deployment.
Free planWebSelf-hosted6.1Free plan - 17
OpenML
OpenML is a free, open platform for sharing machine-learning datasets, algorithms, and experiments through the web and an API.
Free planWebAPI6.1Free plan - 18
ModelDB
ModelDB is an open-source system for versioning machine learning models and tracking metadata across development, deployment, and live monitoring.
Free planWebAPISelf-hosted6.0Free plan - 19

Polyaxon
Polyaxon is a control plane for machine-learning and AI engineering workloads on Kubernetes, spanning training, inference, and agent tasks.
Free planWebAPISelf-hosted6.0Free plan - 20

Valohai
Valohai is an MLOps platform for orchestrating machine-learning workflows and managing compute, datasets, and pipelines.
WebAPILinuxSelf-hosted6.0 - 215.9
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Kubeflow Notebooks
Kubeflow Notebooks provides interactive development environments for AI, machine learning, and data workloads, running notebook containers directly…
WebSelf-hosted5.9 - 23

DVCLive
DVCLive is a free Python API module for recording machine-learning parameters, metrics, artifacts, images, and plots.
Free planAPI5.8Free plan - 24
Oríon
Oríon is a free, open-source framework for asynchronous black-box function optimization, aimed at tuning machine-learning models and training.
APILinuxmacOSSelf-hosted5.8 - 25

Vertex AI Vector Search
Vertex AI Vector Search is a vector search engine for search, recommendations, and generative AI applications.
WebAPI5.8 - 26
FastTrackML
WebAPILinuxmacOS5.4 - 27
MLtraq
Linux5.4 - 28
Sacred
LinuxSelf-hosted5.4 - 29

Azure Machine Learning
Azure Machine Learning is a web-based service for machine-learning workflows.
Web5.3 - 30
5.3
