LangSmith
Debug and eval LLM apps.
★★★★☆ 4.4 5,400 saves Starting price: $39/mo
Tool information
In-depth review
Debug and eval LLM apps. LangSmith competes in the AI Model Training category, where our editors have reviewed 294 tools so far. It has been bookmarked by 5,400 readers, making it one of the most discussed options in its class. This in-depth review breaks down exactly where LangSmith shines, where it falls short, and who should choose it.
In real-world use, LangSmith's clearest strengths are LLM tracing; Dataset evals; Prompt hub; Monitoring; LangChain tie-in. These advantages matter most for Tracing, Evals, Monitoring — the exact workload LangSmith was designed around. Readers who prioritise these qualities consistently rank it among their favourites in AI Model Training.
No tool is perfect — before you commit, weigh Usage billing; RAG setup work; Evals need design. LangSmith pricing starts at $39/mo. Always confirm the latest plans on the official website, because prices change often. Because you can evaluate the full experience free of charge, LangSmith is a low-risk tool to try this week. LangSmith is a solid, well-reviewed choice in AI Model Training and deserves a place on your shortlist.
How LangSmith compares
LangSmith is rated 4.4 out of 5, below the AI Model Training category average of 4.5 across 294 rated tools. Its closest alternatives are Entry Point AI, Roboflow, Labelbox. Popular alternatives include Entry Point AI, Roboflow, Labelbox. Compare their pricing, ratings, and reviews before you decide.
Applicable tasks
Pricing
LangSmith pricing starts at $39/mo. Always confirm the latest plans on the official website, because prices change often.
Frequently asked questions
10 editor-written answers about LangSmith.
Still curious after these answers? Ask us through the contact page and we will add it here.
What is LangSmith?
Debug and eval LLM apps.
Is LangSmith free?
Yes — LangSmith offers free access ($39/mo). Paid plans unlock higher limits and extra features.
How much does LangSmith cost?
LangSmith pricing starts at $39/mo. Always confirm the latest plans on the official website, because prices change often.
How do I start using LangSmith?
Open the official website with the Visit Tool button on this page, create an account, and follow the onboarding steps. Most people are up and running within minutes.
What can I use LangSmith for?
LangSmith is commonly used for Tracing, Evals, Monitoring.
What are the main advantages of LangSmith?
Users most often highlight LLM tracing; Dataset evals; Prompt hub; Monitoring; LangChain tie-in.
Are there any downsides to LangSmith?
Keep in mind: Usage billing; RAG setup work; Evals need design. Weigh these against your budget and needs.
Who is LangSmith best for?
LangSmith suits anyone working with AI Model Training — from beginners trying AI for the first time to professionals who rely on it every day.
Can I try LangSmith before paying?
Yes — you can try LangSmith free of charge ($39/mo) before deciding on a paid plan.
What are good alternatives to LangSmith?
Popular alternatives include Entry Point AI, Roboflow, Labelbox. Compare their pricing, ratings, and reviews before you decide.
Pros and cons
LangSmith is a solid, well-reviewed choice in AI Model Training and deserves a place on your shortlist.
LangSmith is rated 4.4 out of 5, below the AI Model Training category average of 4.5 across 294 rated tools. Its closest alternatives are Entry Point AI, Roboflow, Labelbox.
Pros
- LLM tracing
- Dataset evals
- Prompt hub
- Monitoring
- LangChain tie-in
Cons
- Usage billing
- RAG setup work
- Evals need design
Reviews
Rating summary
Editor score★★★★☆ 4.4/5
Visitor score☆☆☆☆☆ —/5 (0 reviews)
No visitor ratings yet — yours could be the first.
Combined ToolScore4.4/5
ToolScore blends 70% editor score with 30% visitor score once visitors have rated.
- No reviews yet. Be the first to review LangSmith!