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RAGAS vs Phoenix
Side-by-side comparison of features, pricing, and ratings
Pricing
Free
Freemium
Plans
—
$0/mo (open-source)
$0/mo (managed cloud)
Custom
Popularity
4.4k views
7.0k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPICLI
WebAPICLI
Categories
💻 Code & Development📊 Data & Analytics🔬 Research & Education
💻 Code & Development📊 Data & Analytics
Features
LLM-driven evaluation metrics
Experiments-first workflow
Custom metric creation with decorators
Automatic test set generation for RAG & agents
Built-in dataset management and caching
Multi-turn conversation evaluation
Integration with LangChain, LlamaIndex, Haystack
Support for Amazon Bedrock, Google Gemini
Code-based evaluation via CLI
Prompt evaluation and optimization guides
Synthetic data generation (single-hop, multi-hop, persona)
Cost analysis for evaluation runs
Trace every agent step (prompts, retrievals, tool calls, outputs)
LLM-as-judge evaluation for output scoring
Create datasets from traces for experiments
Run experiments to benchmark performance
Prompt IDE for prompt iteration
Self-hosted deployment for data privacy
Vendor agnostic: works with any model/framework
Native OpenTelemetry support
Local run in under a minute
Docker container deployment
Kubernetes Helm chart deployment
Cloud instances (free up to 2)
Annotation system for human/LLM feedback
Support for agent integration plugins
Integrations
LangChain
LlamaIndex
Haystack
AG-UI
Griptape
LangGraph
R2R
Swarm
Amazon Bedrock
Google Gemini
OCI Gen AI
Arize
LangSmith
LlamaStack
OpenTelemetry
NVIDIA NeMo Agent Toolkit
Docker
Kubernetes