Vendor Capability Comparison for Agent Observability

Agent Observability: Vendor Capability Comparison

Mapping IT observability vendor solutions to the LangChain framework for agent observability — Runs · Traces · Threads · Evaluation

Generally Available (GA)

Preview / Alpha / Beta

On Roadmap / Announced

Not yet available / Partner-dependent

Observability Area (LangChain Framework)	🔵 Dynatrace Grail + Davis AI + DT Intelligence	🟡 Elastic Elastic Observability + EDOT	🟠 Splunk / Cisco Observability Cloud + AppDynamics	🟣 Datadog LLM Observability	🟢 New Relic AI Monitoring	🔴 LangSmith (LangChain) — Purpose-built	⚪ Arize AI Phoenix + AX
PRIMITIVE 1: RUNS — Capturing individual LLM execution steps (inputs, outputs, tool choices at each step)
Single LLM Call Tracing Input/output capture per call	GA Full prompt/response logging via OpenLLMetry & OTel GenAI conventions Token usage, latency, error capture per call Grail data lakehouse stores all call data	GA OTLP tracing via EDOT (Python, Java, Node.js) Integrates LangTrace, OpenLIT, OpenLLMetry Captures model used, duration, errors, tokens, prompt/response	GA LLM service traces via Splunk APM with OTel AI Interactions tab in trace view AI Events tab for parsed LLM response quality logs	GA Auto-instruments OpenAI, LangChain, Bedrock, Anthropic Latency, token usage, error capture without code changes Correlated alongside APM data	GA AI Monitoring with auto-instrumentation for Python & Node.js Correlates LLM call data with backend service traces	GA Core primitive — "Run" is native concept Captures full prompt context, tool availability, and decision state per step Enables single-step isolation for debugging	GA LLM call tracing with embedding-level visibility Drift detection on LLM output distributions Arize Phoenix: OTel-native, open-source option
Tool Call Visibility Which tools the agent invoked, with what arguments	GA Tool invocations tracked via agentic framework instrumentation Supports MCP protocol monitoring A2A (agent-to-agent) communication tracing	GA LangChain tool call tracing via EDOT Agentic workflow tracing captures tool interactions	GA Tool call spans with runtime & memory details Execution paths for agent workflows in AI Agent Monitoring	GA Tool call tracing integrated with LLM spans Evaluates tool selection quality	Preview Agent Monitoring release targets multi-agent tool visibility Tool invocation data within trace view	GA Every tool call captured with arguments, results, timing Used natively in single-step evaluations	GA Tool selection quality as a scored evaluation metric Arize AX tracks tool usage patterns
Cost & Token Monitoring Token usage, cost-per-request tracking	GA Token usage, service fees, resource cost monitoring Intelligent detection for cost spikes and usage changes A/B model comparison for cost decisions	GA Pre-built dashboards: total invocations & tokens per model/endpoint PTU (provisioned throughput units) tracking Billing cost visualization for Azure OpenAI, Bedrock	GA Token consumption & request volume in AI Agent Monitoring dashboard AI Infrastructure Monitoring for GPU/compute cost LLM cost management aligned to business goals	GA Per-request token cost tracking and aggregation Cost dashboards correlated to model/deployment version	GA Token and cost tracking in AI Monitoring Cost metrics tied to model and workload type	GA Token usage and latency per run and trace Cost aggregated per thread/dataset	GA Token cost monitoring with model comparison Cost-per-query tracking for production agents
PRIMITIVE 2: TRACES — Capturing full agent execution trajectories (all steps, tool calls, nested structure)
End-to-End Agent Trace Multi-step trajectory from input to final output	GA End-to-end traces from user request through LLM → orchestration → tools Nested structure across all AI stack layers Supports LangChain, LlamaIndex, Amazon Bedrock, Strands SDK	GA LangChain request tracing with full execution path APM trace view with dependency mapping Covers frontend → backend → LLM chain	GA Agent Conversations & AI Trace Views (Alpha → GA Q1 2026) Trace view: span details, tool call runtime, agent workflow paths Integrated APM + AI Agent Monitoring for full-stack trace	GA LLM traces alongside existing APM data Google ADK integration for agent trace visualization Trace correlates LLM calls with DB queries and infra metrics	GA 2025 Agentic AI Monitoring: multi-agent systems visibility Full-stack trace correlating AI calls with infra	GA Native "Trace" primitive — complete multi-step agent execution Nested run structure with parent-child relationships Can handle 100MB+ traces for long-horizon agents	GA End-to-end LLM + agent tracing via Arize Phoenix (OTel-based) Trace visualization with step-by-step breakdown
Topology & Dependency Mapping How agents, tools, and services relate to each other	GA Smartscape real-time dependency graph includes AI agent nodes Agentic Topology View (roadmap: Smartscape-grade for agent flows) Maps agent-to-agent, agent-to-tool, agent-to-service relationships	GA APM service map includes AI/LLM services Dependency isolation for bottleneck detection	GA Enhanced flowmaps for AI agent topology Service-to-AI dependency visualization in AppDynamics	GA Agent service maps within LLM Observability Google ADK integration maps agent decision graphs	Preview Service maps extended to show interconnected agent relationships	GA Trace hierarchy shows nested agent/tool relationships Thread view groups traces by session	GA Visual trace explorer with agent flow graphs Embedding cluster maps for semantic drift
RAG / Retrieval Observability Vector DB, retrieval quality, context grounding	GA Vector DB monitoring: Milvus, Weaviate, Chroma Semantic cache tracking RAG pipeline instrumentation via LangChain/LlamaIndex	GA Integrates with RAG orchestration frameworks Prompt/response logging for hallucination detection Document transparency in context dashboards	GA Vector DB dashboards: Milvus, Pinecone in AI Infra Monitoring Document reliability classification (green/yellow/red) Retrieval-to-generation trace for RAG pipelines	GA LangChain + LlamaIndex auto-instrumentation for RAG Context relevance and groundedness as evaluation metrics	GA LLM Monitoring includes retrieval pipeline tracing RAG context and source tracking in AI Monitoring	GA Full LangChain/LangGraph instrumentation includes retrieval steps Each retrieval documented as a child run within trace	GA TruLens integration for RAG-specific metrics Context relevance, groundedness, answer relevance scoring Hallucination detection purpose-built
Guardrails & Safety Monitoring Content filtering, prompt injection, policy compliance	GA Guardrail metrics monitoring for bias, errors, misuse Compliance monitoring with full data lineage Audit trail for all inputs/outputs	GA Amazon Bedrock Guardrails integration Azure OpenAI content filter monitoring PII/sensitive data leak detection via AI Assistant Prompt injection detection	GA Cisco AI Defense integration: prompt injection, PII leakage, hallucination detection, policy violations LLM risk, misuse, drift, leakage mitigation	GA Built-in hallucination & failed response detection Security scanners for prompt injection & data leaks	Preview Safety metrics within AI Monitoring Partner-dependent guardrails integration	GA Online evaluators can run guardrail checks on every trace Reference-free evaluations for safety scoring in production	GA Real-time guardrail interception via Luna-2 evaluators (Galileo, integrated) PII and policy violation blocking before execution
PRIMITIVE 3: THREADS — Multi-turn conversation context across sessions (state evolution, context accumulation)
Multi-Turn Session Tracking Grouping traces into conversational threads	GA Session-level context preserved across agent executions Grail stores time-series session state across turns	GA Multi-turn LangChain session tracing Thread-level conversation logs in Elasticsearch	Preview (Alpha) Agent Conversations view groups multi-turn interactions Business journey mapping across agent sessions	GA Session replay for multi-turn conversation debugging LLM trace correlations across turns	Preview Multi-agent system visibility includes session grouping SRE Agent includes incident conversation context	GA Native "Thread" primitive — groups multiple traces into sessions Multi-turn evaluation validates context persistence across turns State evolution tracking turn-by-turn	GA Thread-level conversation tracing in Arize AX Context drift detection across turns
State & Memory Tracking How agent memory and artifacts change across turns	GA Agent state captured via Grail unified lakehouse Continuous context mapping via Smartscape	Preview State stored in Elasticsearch; query-able across sessions No dedicated agent memory diff view yet	Preview Agent state changes tracked within conversation view AppDynamics: business journey mapping captures state context	Preview State changes viewable through trace spans LLM Experiments for testing prompt/state changes against production	Roadmap Announced as part of AI agent monitoring expansion	GA State changes (file writes, memory updates) tracked as part of full-turn evaluation Artifacts and memory files inspectable per thread turn	GA Session state monitoring and semantic memory drift detection
EVALUATION — Assessing agent quality: single-step, full-turn, multi-turn; offline, online, and ad-hoc
Single-Step Evaluation Did the agent make the right decision at a specific step?	GA Regression tests per model call LLM-as-judge scoring integrated (planned: full prompt lifecycle) Step-level anomaly detection via Davis AI	GA LLM response evaluation via AI Assist Prompt/response sampling for quality review	Preview Quality Evaluations (Alpha in Observability Cloud) AGNTCY Metric Compute Engine: relevance, hallucination scoring per step LLM-as-judge evaluators in AI Agent Monitoring	GA Built-in hallucination & quality evaluations per trace span Tool selection quality as metric LLM Experiments tests prompt changes vs. production	Preview Business impact analysis for AI app decisions AI Monitoring includes decision quality tracking	GA Core single-step eval workflow: set state → run one step → assert decision Production run states extractable as offline test cases	GA Per-call scoring with custom LLM-as-judge or human feedback Evaluations on runs with built-in metrics (correctness, relevance)
Full-Turn (Trajectory) Evaluation Did the agent execute the full task correctly end-to-end?	GA End-to-end trace evaluation via Davis causal analysis Trajectory anomaly detection (tool call sequences) A/B model comparisons for trajectory efficiency	GA APM trace-level analysis of LangChain agent flows Error and bottleneck identification across full trajectory	GA Agent Scorecard (Alpha) for end-to-end performance Trajectory checks via AI Agent Monitoring dashboards Error rate + performance tracking across full runs	GA Full trace evaluation with latency, error, and quality scoring LLM Experiments for offline trajectory testing	GA Agentic AI Monitoring with end-to-end flow assessment Business impact analysis per agent execution	GA Full-turn evaluation on traces: trajectory, final response, state change assertions Easiest granularity to build evaluations against	GA Trace-level scoring with hallucination, context adherence, tool selection Dataset-based offline evaluation workflows
Multi-Turn Evaluation Does the agent maintain context correctly over a full session?	Preview Agentic Topology View (roadmap) targets multi-turn context visualization Davis AI correlates anomalies spanning multiple interactions	Preview Multi-turn session logs queryable via Elasticsearch No native automated multi-turn eval framework yet	Preview (Alpha) Agent Conversations view supports multi-turn context review AGNTCY metrics propagate across multi-turn sessions	Preview Session replay enables multi-turn inspection Cross-turn correlation in LLM Observability	Roadmap Announced multi-agent & session-based monitoring expansion	GA Native "Thread" evaluation validates context persistence across turns Conditional eval logic per turn to keep tests on-rails	GA Thread-level semantic drift detection Multi-turn session evaluations with per-turn scoring
Online (Production) Evaluation Continuous quality checks on live agent traffic	GA Davis AI continuously evaluates production behavior Intelligent anomaly detection on every trace ingested Real-time cost, latency, and quality alerting	GA Real-time dashboards for prompt/response quality Guardrail alerting on production traffic Anomaly detection via Elastic ML	GA AGNTCY quality metrics as streaming telemetry Real-time prompt injection, drift, PII leakage alerts via Cisco AI Defense AI Troubleshooting Agent auto-correlates MELT signals	GA Continuous hallucination & injection detection on all production traces Watchdog AI anomaly detection on LLM metrics	GA Real-time AI workload monitoring with SRE Agent analysis AI Monitoring ingests and scores production traces	GA Online evaluators run as traces are ingested Reference-free evaluators (no ground truth needed) Trajectory flags, efficiency monitoring, quality scoring in production	GA Real-time guardrail scoring with sub-200ms latency (Luna-2) Continuous production monitoring with LLM-as-judge
Offline Evaluation / Datasets Building test suites from production traces; pre-deployment testing	GA Holdout evaluation sets for model drift comparison Custom regression tests per model version	Preview Evaluation via LangTrace/OpenLIT integrations No native dataset management for offline eval	Preview (Alpha) Quality Evaluations Alpha supports test set creation from traces AppDynamics: compliance-focused offline evaluation	GA LLM Experiments: test prompt changes vs. production baseline Offline evaluation integrated with trace replay	Roadmap No-code agent builder will support offline evaluation flows	GA Production traces → datasets (automated pipeline) Run offline evals on commit or pre-deployment Prompt caching to avoid redundant model calls during eval	GA Dataset management for offline evaluations Experiment tracking (Arize AX) with version comparison Human annotation workflows for ground truth labeling
Ad-Hoc Insights / AI-Assisted Analysis Querying traces at scale; pattern discovery; LLM-as-judge	GA Davis AI + Dynatrace Intelligence: causal root cause analysis Natural language querying via DQL / notebooks Agentic ops system: deterministic + agentic AI fused reasoning	GA Elastic AI Assistant for anomaly investigation ES|QL queries across trace data at scale	GA AI Troubleshooting Agent: correlates MELT, surfaces root cause, generates remediation plans Splunk MCP Server: query Observability Cloud via AI agents/LLMs Splunk platform for ad-hoc log querying at scale	GA Watchdog AI for pattern discovery across LLM metrics Dashboards + analytics for failure mode identification	GA SRE Agent for conversational incident investigation AI-assisted root cause analysis in observability platform	GA Insights Agent: AI-assisted analysis of large trace datasets Query threads to surface failure patterns, inefficiencies, decision explanations	GA Cluster analysis on embeddings for behavioral pattern discovery Natural language querying on trace data
PLATFORM DIFFERENTIATORS — OTel alignment, framework support, unique strengths
OpenTelemetry & Framework Support	GA OTel + OpenLLMetry (20+ AI/Agent frameworks) Amazon Bedrock, Azure AI Foundry, Strands, AgentCore, Vertex AI, OpenAI, Gemini, DeepSeek, NVIDIA NIM, MCP protocol	GA EDOT (Elastic Distributions of OTel) for Python, Java, Node.js Amazon Bedrock, Azure OpenAI, Azure AI Foundry, Google Vertex AI, OpenAI LangTrace, OpenLIT, OpenLLMetry as 3rd-party options	GA Major OTel contributor; AGNTCY donation to Linux Foundation LangChain, OpenAI, AWS Bedrock, GCP VertexAI, NVIDIA NIMs, LiteLLM, Milvus, Pinecone	GA OpenAI, LangChain, AWS Bedrock, Anthropic, LlamaIndex, Google ADK DDTRACE SDK auto-instrumentation	GA OTel-native with Pixie for Kubernetes Python & Node.js LLM auto-instrumentation MCP server integrations via partner agents	GA Purpose-built for LangChain/LangGraph (single env var setup) Supports 50+ frameworks via SDK OTel export for piping into other observability stacks	GA Arize Phoenix: fully OTel-native, open source OpenAI, LangChain, LlamaIndex, Bedrock, CrewAI, AutoGen Interops with Datadog, Honeycomb, Grafana via OpenLLMetry
Key Differentiator / Unique Strength	🔵 Causal AI + Deterministic Agents: Davis AI provides causal root cause analysis grounded in real-time Smartscape topology. Dynatrace Intelligence fuses deterministic + agentic AI for trusted autonomous operations. 12x better problem resolution vs. pure LLM agents.	🟡 Search + Observability + Security Unified: Elastic combines LLM observability, security (SIEM), and search in one platform. Strong OTel ecosystem via EDOT. Leader in 2025 Gartner Magic Quadrant for Observability Platforms.	🟠 Cisco AI Defense + AGNTCY Standards: Unique network/security heritage via Cisco integration enables AI risk detection at infrastructure level. Strong OpenTelemetry contribution and vendor-neutral AGNTCY standard for agent quality metrics.	🟣 Breadth + APM Correlation: LLM traces integrated directly alongside existing APM, infra, and security data. LLM Experiments allows prompt testing pre-deployment. Watchdog AI for continuous anomaly detection. Google ADK first-mover integration.	🟢 Application-Centric Depth + Pricing: Strong APM heritage with code-level diagnostics. Predictable data-ingestion pricing. SRE Agent integrates with ServiceNow, PagerDuty, GitHub for agentic remediation. 30% QoQ growth in AI Monitoring adoption.	🔴 Purpose-Built for Agent Evaluation: Only vendor where Runs, Traces, and Threads are first-class primitives. Production traces automatically become offline test datasets. Deepest LangChain/LangGraph integration. Insights Agent for AI-assisted trace analysis at scale.	⚪ ML Pedigree + Open Source: Only vendor with traditional ML model monitoring (drift, bias) converging with LLM agent observability. Arize Phoenix is open-source and OTel-native. Strong RAG evaluation with TruLens. Best embedding-level drift detection.

Sources: LangChain Blog (Feb 2026), Dynatrace Docs & Blog (Jan–Feb 2026), Elastic Docs & Observability Labs (2025–2026), Splunk Blog & Docs (Q1 2026), Datadog, New Relic, Arize AI product documentation. Status as of February 2026. Features evolving rapidly — verify current availability with vendors.

Data summarized by Claude on Feb 26,2025

Disclaimer: AI can make mistakes, for deep dive please doublecheck the answers on relevant sources.