Respan
LLM tracing, evals, and gateway
33 Best DeepEval Alternatives & Competitors
The top alternatives to DeepEval in the Observability, Prompts & Evals space, compared on features, pricing, and what they're best at.
Updated March 10, 2026
Why look beyond DeepEval?
DeepEval is open-source framework for evaluating LLM outputs with metrics and test cases.
Common reasons users explore alternatives
- Manual setup
Top alternatives to DeepEval
LangSmith
Trace visualization for LLM chains
Weights & Biases
ML experiment tracking
MLflow
OpenTelemetry-native tracing
Langfuse
Open-source LLM observability
Arize AI
ML observability with LLM support
Datadog LLM
LLM monitoring within Datadog platform
Helicone
Traceloop
OpenTelemetry
Braintrust
Real-time LLM logging and tracing
HoneyHive
Prompt management
Phoenix
OpenTelemetry-based LLM and agent tracing
Promptfoo
Patronus AI
Automated LLM evaluation platform
Portkey
Humanloop
Sentry
Ragas
RAG-specific evaluation framework
LangWatch
Multi-turn agent simulation testing
Galileo AI
LLM output quality evaluation
PromptLayer
Maxim AI
Distributed tracing for LLM and agent apps
Confident AI
DeepEval open-source evaluation framework
Opik
Agenta
Lunary
Future AGI
Multimodal evaluation (text, image, audio, video)
Parea AI
Chamber
ML infrastructure automation
Athina AI
Ashr
Multi-modal synthetic testing
Sentrial
Agent failure root cause analysis
Moda
Hallucination detection
Run Observability, Prompts & Evals in production with Respan
One platform for routing, observability, tracing, and evals across every LLM provider.