These tools competes with
HeliconevsLangSmith
LLM observability, cost tracking, request logging versus LLM tracing, evaluation, and dataset management
Compare interactively in Explore →Choose Helicone when…
- •You want one-line LLM observability setup
- •Caching LLM responses to cut costs matters
- •You're an early-stage startup optimizing quickly
Choose LangSmith when…
- •You're already in the LangChain ecosystem
- •You want end-to-end tracing for LangChain apps
- •Dataset management and evals are part of your workflow
Side-by-side comparison
Field
Helicone
LangSmith
Category
LLM Infrastructure
LLM Infrastructure
Type
Open Source
Commercial
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Pro: Usage-based
Plus: $39/mo
GitHub Stars
⭐ 2,500
—
Health
●80 — Active
—
Helicone
Open-source LLM observability platform. One-line integration to log every LLM request, track costs, and debug slow or failing calls.
LangSmith
LangChain's observability platform. Trace every LLM call, run evals on datasets, and manage prompts in production.
Shared Connections1 tools both integrate with
Only Helicone (7)
LiteLLMOpenAI APIAnthropic APILangSmithArize PhoenixTraceloopLogfire
Only LangSmith (8)
LangGraphLangChainCursorPydanticAIBraintrustHeliconeWeights & BiasesAgentOps
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