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Agenta vs Arize Phoenix
Side-by-side comparison of features, pricing, and ratings
Pricing
Freemium
Freemium
Plans
$0/month
$49/month
$399/month
Custom
Free
Contact for pricing
Popularity
5.2k views
7.3k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPICLI
WebAPICLI
Categories
💻 Code & Development📊 Data & Analytics🔬 Research & Education
💻 Code & Development📊 Data & Analytics
Features
Prompt management with version history
Unified playground for comparing prompts and models side-by-side
Automated evaluation using LLM-as-a-judge or custom code evaluators
Full trace evaluation for multi-step agents
Human annotation and feedback integration
Observability with request tracing and debugging
Turn production traces into test cases with one click
Model-agnostic support (any LLM provider)
UI for non-technical team members to edit prompts safely
Full API and UI parity for programmatic control
Monitor performance and detect regressions with live evaluations
Collaboration features for PMs, developers, and domain experts
Agent tracing with prompts, retrievals, tool calls, outputs
LLM-as-judge evaluation and human annotation
Dataset creation from traces for experiments
Prompt IDE for iterative prompt optimization
Hypothesis testing with benchmarked experiments
Cost, latency, and performance scoring
Self-hosted deployment (local, Docker, Kubernetes)
Cloud-based free instances with no infrastructure setup
OpenTelemetry native support
Vendor-agnostic: works with any model/framework/language
Open-source (ELv2) with community contributions
9k+ GitHub stars and 2.5M+ monthly downloads
Integrations
LangChain
LlamaIndex
OpenAI
GitHub
Slack
OpenTelemetry