Respan
Nested traces for every LLM call, tool run, and agent turn
The top alternatives to HoneyHive in the Observability, Prompts & Evals space, compared on features, pricing, and what they're best at.
Updated March 9, 2026
HoneyHive is an enterprise-grade AI observability and evaluation platform that helps teams monitor, debug, and optimize AI agents and applications at scale. The platform provides OpenTelemetry-native distributed tracing across 100+ LLMs and agent frameworks, enabling visibility into complex multi-agent systems through session replay, online evaluation for detecting failures in live systems, and comprehensive artifact management. HoneyHive offers 25+ pre-built evaluators for quality and safety assessment, offline experiment capabilities with regression detection, and CI/CD integration for automated testing. The platform is SOC 2 Type II certified, GDPR and HIPAA compliant, with deployment options including multi-tenant SaaS, dedicated cloud, or self-hosted air-gapped environments.
Respan
Nested traces for every LLM call, tool run, and agent turn
LangSmith
Native tracing for LangChain and LangGraph
MLflow
OpenTelemetry-based tracing for LLMs and agents
Weights & Biases
ML experiment tracking
Langfuse
Tracing for LLM calls, tool runs, and agent steps
Arize AI
ML observability with LLM support
Datadog LLM
LLM monitoring within Datadog platform
Traceloop
OpenTelemetry
Helicone
Braintrust
Experiments comparing prompts and models
Promptfoo
Patronus AI
Automated LLM evaluation platform
Phoenix
OpenTelemetry-based LLM and agent tracing
Humanloop
Portkey
DeepEval
Sentry
Ragas
RAG-specific evaluation framework
LangWatch
Multi-turn agent simulation testing
Galileo AI
LLM output quality evaluation
PromptLayer
Confident AI
DeepEval open-source evaluation framework
Maxim AI
Distributed tracing for LLM and agent apps
Opik
Agenta
Future AGI
Multimodal evaluation (text, image, audio, video)
Lunary
Parea AI
Athina AI
Moda
Hallucination detection
Ashr
Multi-modal synthetic testing
Sentrial
Agent failure root cause analysis
Chamber
ML infrastructure automation
Laminar
Agent tracing with a readable transcript view
OpenObserve
Logs, metrics, traces, RUM, and session replay
AgentOps
Session replay with time-travel debugging
Fiddler AI
Agentic observability across multi-step agent workflows
One platform for routing, observability, tracing, and evals across every LLM provider.
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.
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