Comet
7.9#1 in model registry softwareFrom $19 a monthFree planWebAPILinuxmacOS
VisitComet vs LUML Flow
What both publish
| Fact | Comet | LUML Flow |
|---|---|---|
| Headquarters | New York City, United States | Linz, Austria |
| Integrations | Comet advertises integrations with more than 40 AI frameworks, model providers, and gateways, including PyTorch, TensorFlow, Keras, scikit-learn, XGBoost, Hugging Face, LangChain, and OpenAI. | The page lists PyTorch, LangGraph, XGBoost, scikit-learn, LlamaIndex, TensorFlow, Anthropic, LightGBM, DSPy, JAX, LangChain, and Keras. |
| LLM tracing | Opik traces LLM inputs, outputs, metadata, tool calls, and multi-step agent execution. | Flow routes OpenTelemetry spans into experiment storage and describes instrumentors for OpenAI clients, LangChain, and LangGraph. |
Comet plans
- Open SourceFree
- Opik Free CloudFree
- Opik Open SourceFree
- MLOps FreeFree
- Free CloudFree
- Pro Cloud$19 a month
LUML Flow plans
No prices published.
Pick Comet if…
Opik is aimed at teams building applications or agents that make LLM calls. Comet describes MLOps as suited to teams building and training machine-learning models.
Pick LUML Flow if…
You want what its maker publishes above — check its page for the details.