Paddle vs LangSmith

Paddle

LangSmith

Paddle · 12 features

• Affiliates (Rewardful partnership) — Affiliate tracking (via partner).
• Customer Portal — Self-service subscription management.
• Fraud Protection — ML + human review. Paddle absorbs chargebacks.
• Global Tax Compliance — Automatic VAT/GST/sales tax calc + remittance + filing.
• One-time Sales — Perpetual license sales, single purchases.
• Paddle Checkout — Hosted or overlay checkout. Localized + fraud-protected.
• Paddle Retain — Revenue recovery + cancel flows (acquired Retain).
• ProfitWell Analytics — Included subscription analytics (acquired ProfitWell).
• Self-Serve Invoices — B2B invoicing with custom POs.
• Smart Dunning — Retry logic + email sequences for failed payments.
• Subscriptions — Full lifecycle: trials, changes, cancellations, recovery.
• Webhooks — Standard resource events with HMAC signing.

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.