Pick HoneyHive if
agent teams who will stay on Developer at $0 (10k events, 5 users, 30-day retention) while they open a first Sessions tree, then Enterprise when they need SSO or custom limits.
Read the HoneyHive pageHoneyHive vs LangSmith
Our take
Pick HoneyHive if you're on a agent team who will stay on Developer at $0 (10k events, 5 users, 30-day retention) while they open a first Sessions tree, then Enterprise when they need SSO or custom limits. Pick LangSmith if you're an engineer who already write agent code and will open traces when a run surprises them.
LangSmith
LangChain’s hosted observability and eval
Best for
HoneyHive See why an agent branched and score that path
LangSmith See what an agent did, then score it
Free plan
HoneyHive $0 · no card. 10,000 events / month. Up to 5 users. Automated and human evaluations. Prompt versioning and deployments. Full observability suite. CI/CD. 30-day retention. Community support
LangSmith $0 · / seat / month. 1 seat. 5,000 base traces/month, then pay-as-you-go. 7 LSU Fleet allowance/month. Community support
Lowest paid
HoneyHive Not published by the vendor
LangSmith Plus $39/mo
Runs where
HoneyHive Local or hosted
LangSmith Hosted
Watch out
HoneyHive Developer is 10k events / 5 users / 30 days
LangSmith Traces after 5k / 10k bill in arrears
Last checked
HoneyHive 2026-10-27 · honeyhive.ai/pricing
LangSmith 2026-10-22 · langchain.com/pricing
Which one, then?
Pick LangSmith if
engineers who already write agent code and will open traces when a run surprises them.
Read the LangSmith page