Strengths
- Used by OpenAI to power large-scale AI models including ChatGPT, enabling faster iteration.
- Supports distribution of any Python code without requiring rewrites.
- Integrates with common AI/ML frameworks and scales seamlessly across accelerators.
- Open-source with a large active community (41,212 GitHub stars, 1,000+ contributors).
- Managed platform reduces costs through spot instance usage and auto-scaling.
Limitations
- Open GitHub issues indicate ongoing stability challenges including core worker shutdowns.
- Requires cluster management for production-scale deployments even when using the managed platform.
- Recent issues highlight the need for triage on features such as tool calling in Ray Data.