Iterate faster, win bigger
Observe, evaluate, and deploy your agents with discounted pricing for builders.

LangSmith helps startups build better agents.
Find failures fast with agent tracing
Quickly debug and understand non-deterministic behavior with tracing.
Run agents at scale with LangSmith Deployment
Purpose-built infrastructure for deploying long-running agent workloads.
Continuously improve agent quality
Run evals before and after shipping, and gather expert feedback on performance.
Create agents using natural language with LangSmith Fleet
Multiply your capacity with AI agents built around your routines.

Explore the tiers
Build
For early-stage, VC-backed startups and founders.
Scale
For early-stage startups backed by our premier VC partners.
Our premier VC partners
How it works
Preparation & Application
Review & Notification
Activation & Growth

Frequently Asked Questions
If you are a first-time customer backed by a LangChain premier VC partner, and are Series A or earlier stage, the Scale tier is for you.
If you are a first-time customer with less than $10M in funding, and have raised at least $25K in seed funding, the Build tier is for you. Please note additional eligibility criteria may apply.
If your VC or accelerator isn’t a LangChain VC partner, you may still be eligible for our Build tier. To qualify for our Build tier, you must be a first-time customer with less than $10M in funding, and have raised at least $25K in seed funding. Please note additional eligibility criteria may apply.
If you are eligible, your credits will be available to you within a few days of applying and are available for 1 year. Those in Y Combinator will have 2 years to use their credits.