AI-assisted summary
This side-by-side is generated from verified tool data (rating, pricing, free tier, integrations, adoption signals) using our editorial scoring framework. How we rank.
Head-to-Head
LangSmith vs Supabase (2026)
LangSmith
Freemium★ 4.5
Best for: debugging unexpected llm outputs and tracing multi-step agent behaviour, running a/b tests on prompt changes before deploying to production
Supabase
Freemium★ 4.8
Best for: postgres-backed app backend, user authentication and row-level security
LangSmith and Supabase are closely matched on the seven criteria below. LangSmith is rated 4.5/5 across 759 aggregate ratings; Supabase is rated 4.8/5 across 182. Pick by which feature gap matters most for your workflow.
Feature Comparison
Output Quality
Derived from aggregate ratings (759 vs 182).
Ease of Use
Estimated from free-tier availability and entry pricing.
Pricing Value
LangSmith: freemium. Supabase: $25/mo.
Free Tier
LangSmith: yes. Supabase: yes.
Feature Depth
Estimated from documented pros and use cases.
Integrations
2 integrations vs 2.
Adoption
User adoption proxy from aggregate review volume.
Verdict
This comparison is context-dependent. LangSmith scores 28.5/35 and Supabase scores 29/35. Choose based on your specific workflow needs.