Coding & vibe coding / LangSmith
LangSmith
Tracing, evaluation and monitoring for LLM apps and agents, so you can find why an agent failed and track cost and latency.
- Best for
- Teams running agents in production that need debugging and evals
- Type
- Agent observability platform
- Price
- Free tier / paid from $39/seat/mo
- Setup
- Medium
- Free trial
- Free Developer plan available
Pricing
Prices are copied from the vendor's own pages and change often. Confirm before you buy. BotPickr does not set or sell these plans.
| Plan | Price as shown by the vendor |
|---|---|
| Developer | $0 per seat per month (1 seat, up to 5k base traces per month) |
| Plus | $39 per seat per month (10k base traces per month included) |
| Enterprise | Custom |
Free trial: Free Developer plan available.
Traces beyond the included amount are pay-as-you-go. The vendor lists discounted credits for VC-backed startups.
Pricing source: https://www.langchain.com/pricing
How to set it up
- Create a free account and add the tracing environment variables to your agent.
- Run your agent and open a trace to see each step and tool call.
- Save failing runs as a dataset and write an evaluator.
- Use the dashboards to watch cost, latency and failures over time.
Source: https://docs.langchain.com/langsmith/observability · Listing updated Oct 15, 2026. Pricing changes often; confirm on the official site.
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Sponsor this spotHow LangSmith compares
| Tool | Type | Price | Setup | Best for |
|---|---|---|---|---|
| LangSmith | Agent observability platform | Free tier / paid from $39/seat/mo | Medium | Teams running agents in production that need debugging and evals |
| Aider | CLI agent | Free / open source | Medium | Git-first developers |
| Cline | Editor extension | Free / open source | Medium | VS Code users who want control |
| Continue | Editor extension | Free / open source | Medium | Teams wanting a configurable copilot |
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