Quick Keypoints
- Provides visual tracing for complex chain-of-thought LLM applications.
- Monitors prompt performance, latency issues, and token cost details.
- Facilitates running evaluation sets to check model response qualities.
- Integrates directly with LangChain framework setups.
What is LangSmith?
Enterprise LLM debugging and tracing developer suite.
LangSmith is a developer platform designed to trace, debug, test, and evaluate language model applications.
Who Needs LangSmith?
AI software engineers, backend developers, and LLM application designers.
Primary Use Cases
- Autocompleting code syntax and logic blocks in real-time.
- Explaining complex functions and debugging codebase errors.
- Generating boilerplate code and unit test suites automatically.
Important Features
- Logical Tracing: Inspect the steps and API parameters of complex agent structures.
- Benchmark Evaluator: Execute test runs to score model output drift over code iterations.
- Cost Monitoring: Analyze token volume draws and optimize provider budgets.
Current Updates About LangSmith
- Added support for Agent deployments and fleet monitoring, metered via LangChain Compute Units (LCUs).
- Current Version: v2.0
Alternatives to LangSmith
If you want to check similar software, these alternative tools offer comparative features:
Pricing Plans
| Plan | Price |
|---|---|
| Developer1 seat, 5,000 base traces per month, and 14-day data retention. | $0 |
| PlusUnlimited seats, 10,000 base traces per month, and 400-day data retention. | $39/seat/mo |
| EnterpriseSSO, SLAs, dedicated support, and self-hosting options. | Custom |
Affiliate & Referral Disclosure: We review products independently. Some of the outbound links on this directory are referral links containing tracking parameters. We may receive referral tracking credits or potential commission fees if you proceed to register or subscribe. Read our full Disclaimer.