Phoenix
FreeOpen-source tool for ML observability that runs in your notebook environment, by Arize. Monitor and fine tune LLM, CV and tabular models.
FreeFree tier
About Phoenix
Open-source tool for ML observability that runs in your notebook environment, by Arize. Monitor and fine tune LLM, CV and tabular models.
Key Features
Runs in notebook environments (Jupyter, Colab, etc.)
Monitor LLM, computer vision, and tabular models
Fine-tune and debug model performance
Open-source and free to use
Pros & Cons
Pros
- Free and open-source
- Runs locally in notebooks for easy integration
- Supports multiple model types (LLM, CV, tabular)
- Backed by Arize AI for enterprise-grade reliability
Cons
- Limited to notebook environments (no standalone UI)
- May require additional setup for production-scale monitoring
Best For
LLM observability and debuggingComputer vision model monitoringTabular model performance analysisML experimentation and fine-tuning
FAQ
What is Phoenix?
Phoenix is an open-source ML observability tool by Arize AI that runs in notebook environments for monitoring and fine-tuning LLM, computer vision, and tabular models.
Who created Phoenix?
Phoenix is developed and maintained by Arize AI.
Is Phoenix free to use?
Yes, Phoenix is open-source and free to use.