LangSmith vs. telemetry.dev Comparison


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About Unexpected results happen all the time. With full visibility into the entire chain sequence of calls, you can spot the source of errors and surprises in real time with surgical precision. Software engineering relies on unit testing to build performant, production-ready applications. LangSmith provides that same functionality for LLM applications. Spin up test datasets, run your applications over them, and inspect results without having to leave LangSmith. LangSmith enables mission-critical observability with only a few lines of code. LangSmith is designed to help developers harness the power–and wrangle the complexity–of LLMs. We’re not only building tools. We’re establishing best practices you can rely on. Build and deploy LLM applications with confidence. Application-level usage stats. Feedback collection. Filter traces, cost and performance measurement. Dataset curation, compare chain performance, AI-assisted evaluation, and embrace best practices.	About telemetry.dev is an OpenTelemetry-native observability platform for AI agents and LLM applications. Developers can trace model calls, tool steps, retrievals, logs, and metrics; inspect failures, latency, token usage, and estimated cost; and compare activity by model, provider, and environment. It supports first-party TypeScript and Python SDKs, provider and framework integrations, and standard OTLP/HTTP ingest. Environment-level capture controls, SDK masking, and server-side redaction help teams manage stored prompt, response, and telemetry content.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Developers seeking a platform to design, build, and test their applications	Audience Developers and engineering teams building, operating, and debugging AI agents and LLM applications.
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Not Supported
API Offers API Not Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing No information available. Free Version Not Supported Free Trial Not Supported	Pricing $0/month Prices are per organization per month. Free includes 30,000 ingestion units per month, 14-day retention, 1 project, and 2 seats. Pro is $25 per month with 500,000 ingestion units, 30-day retention, 5 projects, and 5 seats. Team is $50 per month with 2 million ingestion units, 90-day retention, unlimited projects and seats, and priority support. One normalized span, OTLP log record, or metric data point counts as one ingestion unit. Paid ingestion continues beyond the listed allowances without automatic overage charges; the vendor may contact consistently high-usage customers. Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Not Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information LangChain United States www.langchain.com/langsmith	Company Information telemetry.dev telemetry.dev/
Alternatives Arize AI	Alternatives Randoli
Braintrust Braintrust Data	OpenLIT
Griptape Foundry	Arize Phoenix Arize AI
LangChain	Grafana Cloud Grafana Labs
LangGraph LangChain View All	New Relic View All
Categories AI Agent Observability Supported AI Development Supported Context Engineering Supported Debugging Supported Software Testing Supported	Categories AI Agent Observability Supported AI Observability Supported

Integrations LangChain Supported AgentForge Supported Amazon Bedrock Not Supported Anthropic Not Supported Azure Marketplace Supported Claude Code Not Supported CrewAI Not Supported Cursor Not Supported Disco.dev Supported LangGraph Supported LiteLLM Not Supported Noma Supported OpenAI Not Supported OpenCode Not Supported OpenRouter Not Supported PydanticAI Not Supported TierZero Supported Vercel AI SDK Not Supported Voker Supported ZenML Supported Show More Integrations View All 9 Integrations	Integrations LangChain Supported AgentForge Not Supported Amazon Bedrock Supported Anthropic Supported Azure Marketplace Not Supported Claude Code Supported CrewAI Supported Cursor Supported Disco.dev Not Supported LangGraph Not Supported LiteLLM Supported Noma Not Supported OpenAI Supported OpenCode Supported OpenRouter Supported PydanticAI Supported TierZero Not Supported Vercel AI SDK Supported Voker Not Supported ZenML Not Supported Show More Integrations View All 14 Integrations
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