LangSmith
A platform for building and managing AI agents with observability and evaluation capabilities
- Also known as
- langsmith
Available worldwide · Popular in: US
What is LangSmith?
LangSmith enables users to observe, evaluate, and deploy AI agents through a web interface that requires no coding. The platform provides tools for agent engineering and monitoring.
What LangSmith does
The capabilities that matter for mlops & llmops tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Tool role
- LLM observability / eval
- Self-hostable / OSS core
- ✗
- Managed cloud available
- ✓
- On-prem / VPC deployment
- ✗
- LLM tracing / observability
- ✓
- Evaluation (offline / LLM-judge / human)
- ✓
- Prompt management + versioning
- -
- Experiment tracking / model registry
- -
- Model serving / inference endpoint
- ✗
- OpenTelemetry / OpenLLMetry compatible
- -
- Framework-agnostic
- ✓
- Multi-provider model support
- -
- No-train-on-customer-data guarantee
- -
Platform & deployment
Independently observed- Web
- Cloud / SaaS
LangSmith FAQ
Common questions about LangSmith, answered from independent, dated evidence.
What is LangSmith?
LangSmith enables users to observe, evaluate, and deploy AI agents through a web interface that requires no coding. The platform provides tools for agent engineering and monitoring. It is indexed under MLOps & LLMOps Tools.
Source: https://smith.langchain.com
What platforms does LangSmith support?
We have confirmed browser-based access to LangSmith. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.
Source: https://smith.langchain.com
Can LangSmith be self-hosted?
We have only confirmed a cloud / SaaS deployment for LangSmith, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.
Source: https://smith.langchain.com
Where is LangSmith available?
LangSmith is available worldwide. Its primary market is the United States.
Source: https://smith.langchain.com
LangSmith alternatives
Other mlops & llmops tools we track, ranked by the same independent score.
- PortkeyAn API gateway for routing requests across thousands of language models with built-in safety guardrailshigh · 76%
- LangChainA platform for building, testing, and operating AI agents at scalemedium · 70%
- BasetenAn inference platform for deploying and running AI models at scalemedium · 73%
- Together AICloud platform for deploying and running open-source AI models with optimized inferencemedium · 61%
- OllamaA platform for running open-source language models locally or in the cloud with cost-effective access.medium · 57%
- RayDistributed computing infrastructure for scaling machine learning applicationsmedium · 65%
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for LangSmith, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Reliability | 50 | 0.06 | 3.2 | ✓ |
| Capabilities | 67 | 0.04 | 2.7 | ✓ |
| Price level | 0 | 0.05 | 0.0 | - |
| Integrations | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.06 | 0.0 | - |
| Pricing transparency | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 4 items | mediumsource · 2026-09-10 · 64% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Role: observability · Evaluation: Yes · Managed cloud: Yes · Model serving: No · Self hostable: No · Vpc deployment: No | mediumsource · 2026-08-21 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-21 · 75% |
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-05 · 60% |
Is LangSmith the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank LangSmith against the rest of the mlops & llmops tools we index, using the same dated evidence weighted your way.
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