LangSmith
NewNew to the index — the LangSmith profile is being built from its website.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
- LangSmith ranks #31 of 80 in AI Agents with an AI visibility score of 3 (SlateIndex, Nov 3, 2026).
- LangSmith is most visible on ChatGPT (7) and least on Perplexity (0.9).
- AI engines name LangSmith in 5 of the 30 AI Agents buyer prompts SlateIndex tracks.
- amazon.com is the source AI engines cite most in answers about LangSmith, with 3 citations.
About
Company details for LangSmith
LangSmith is an observability, evaluation, and prompt-engineering platform. Its offering includes observability and evaluation, LangSmith Deployment for running agents, and an agent IDE called LangSmith Studio. It ranks #31 of 80 in AI Agents on SlateIndex and has a visibility score of 3 in the latest weekly run.
- Website
- langchain.com
- Categories
- AI Agents
- Headquarters
- San Francisco, California
- Funding
- Series B
- Deployment
- Cloud, Bring Your Own Cloud, and Self-hosted
- Platforms
- AWS (EKS), Azure (AKS), GCP (GKE)
- Compliance
- SOC 2 Type II, HIPAA, GDPR, ISO 27001 (Engine feature)
Read from siliconvalleyinvestclub.com, g2.com, langchain.com, docs.langchain.com, github.com, sacra.com · refreshed Nov 3, 2026.
AI visibility
Latest weekly run · Nov 3 · next run Nov 9
Visibility score trend
Weekly runs over the last 60 days, with up to 7 competitors. Click a name to hide or show its line.
Changes appear after the second weekly run in AI Agents. Microsoft Copilot Studio leads the category at 33.3%.
AI mentions & citations
Recent answers that name LangSmith
Which AI agent platform has transparent pricing?
Best AI agent platform for startups
Strong production observability through LangSmith.
What should an AI agent platform integrate with?
Observability, Tracing & Evaluation : Integration with monitoring stacks (e.g., LangSmith, Arize Phoenix, Datadog, Honeycomb) to track token usage, debug multi-step reasoning loops, and evaluate response quality.
Compare the leading AI Agents platforms
LangGraph provides deep orchestration control, but enterprise observability and operations may involve LangSmith.
Official website of the top AI agent platform vendors
LangChain — LangGraph and LangSmith: langchain.com
What should an AI agent platform integrate with?
Products & features
What LangSmith sells
LangSmith
Observability, evaluation, and prompt-engineering platform.
LangSmith Deployment
Runs agents; framework-agnostic and can host LangGraph, LangChain, Deep Agents, and others.
LangSmith Studio
Agent IDE.
Sandboxes
Add-on module for LangSmith.
Engine
Add-on module for LangSmith.
Fleet
Add-on module for LangSmith.
LLM Gateway
Add-on module for LangSmith.
Insights
Add-on module for LangSmith.
Polly
Add-on module for LangSmith.
Strengths engines cite
- strong production observability
- tracing, debugging and response evaluation
Target market & buyers
Notable customers include Replit, Clay, Harvey, Rippling, Cisco, Workday, Klarna.
Funding & recent developments
Funding
| Round | Year | Amount |
|---|---|---|
| Seed | 2023 | $10M |
| Series A | 2024 | $20M |
| Series B | 2025 | $125M |
| Latest known round | Total raised |
|---|---|
| Series B | — |
Recent developments
- Oct 2025FundingSeries B of $125 million at a $1.25 billion valuation
LangChain raised a $125 million Series B led by IVP at a $1.25 billion valuation, per CB Insights.
Competitive landscape
How LangSmith compares with its top three alternatives
LangSmith most often appears alongside Claude, OpenAI Agents SDK, Salesforce in AI answers.
| Brand | Visibility | Share of voice | vs last week | Starting price |
|---|---|---|---|---|
| LangSmith | 3% | 0.9% | New | Pricing not available |
| Claude | 47.5% | 11% | New | Pricing not available |
| OpenAI Agents SDK | 31.4% | 5.8% | New | Pricing not available |
| Salesforce | 46.2% | 9.6% | New | Pricing not available |
| AWS | 35.7% | 7.5% | New | Pricing not available |
What AI answers say
Sentiment and themes from the answers that mention this brand
Positive 17% · Neutral 83% · Mixed 0% of 6 engine answers that mention LangSmith
Praised for
- strong production observability
- tracing, debugging and response evaluation
Criticised for
Cite as: SlateIndex, “LangSmith AI visibility profile”, https://slateindex.ai/brand/langsmith, data of Nov 3, 2026. Licence: CC BY 4.0.