LangSmith vs Lemon Squeezy

LangSmith

Lemon Squeezy

LangSmith · 14 features

• Alerts — Threshold alerts on latency, cost, eval metrics.
• Annotation Queues — Human-review workflows for trace quality rating.
• Custom Dashboards — Aggregate metrics dashboards per project/tag.
• Datasets — Collect examples → use as eval sets or training data.
• Evaluations — LLM-as-judge, embedding similarity, custom Python evaluators, offline batch eval…
• LangChain Integration — Auto-trace any LangChain/LangGraph run with env var.
• LangGraph Integration — First-class trace + eval for LangGraph agents.
• LLM Tracing — Automatic trace every LLM call + tool call + chain step.
• OpenTelemetry Export — Export traces as OTLP to Datadog/Honeycomb/etc.
• Playground — Test prompts + models inline before deploying.
• Prompt Canvas — Visual prompt editor with live test + eval.
• Prompt Hub — Public + private prompt library with versioning.
• Self-Hosted (Enterprise) — Docker + k8s deployment in your infra.
• Threads + Sessions — Group traces into conversational sessions.

Lemon Squeezy · 12 features

• Abandoned Cart Recovery — Email retry campaigns (+5% fee on recovered).
• Affiliate Program — Built-in affiliate/referral program with payouts.
• Custom Checkout Domain — Checkout at checkout.yourbrand.com.
• Customer Portal — Self-service subscription + invoice management UI.
• Discounts / Coupons — Percentage / fixed / trial discount codes.
• Global Tax (included) — Automatic VAT/GST/sales tax calc + remittance. LS files taxes on your behalf.
• Hosted Checkout — Hosted + embeddable checkout. Customize color + logo.
• License Keys — Generate + validate license keys for software sales.
• One-off Sales — Digital products with license keys, file delivery.
• Reports & Analytics — Revenue, MRR, churn, LTV.
• Subscriptions — Recurring billing with trials, proration, discounts.
• Webhooks — Standard resource events (order_created, subscription_created/updated/cancelled,…