Choose Helicone if you need
- Integration with OpenAI, Anthropic or Azure. We haven't found them on LangSmith's website.
- HIPAA. We haven't found it on LangSmith's website.
At a glance
- LangSmith has a free plan. We haven't confirmed one for Helicone.
- Helicone offers a free trial (7 days). We haven't confirmed one for LangSmith.
- Helicone's lowest paid plan is Pro at $79 per month, as of November 14, 2026.
- LangSmith's lowest paid plan is Plus at $39 per seat per month, then pay as you go, as of November 14, 2026.
- They list no integrations in common.
- Both list SSO.
- Only Helicone lists HIPAA.
- Helicone has a public API. We haven't confirmed one for LangSmith.
- Both can be self-hosted.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose LangSmith if you need
- Integration with OpenAI SDK, Anthropic SDK or Vercel AI SDK. We haven't found them on Helicone's website.
Helicone
Nobody has reviewed Helicone yet. Its rating shows once it has 3 reviews.
Review Helicone
LangSmith
Nobody has reviewed LangSmith yet. Its rating shows once it has 3 reviews.
Review LangSmithThe facts
- What it does
- HeliconeRouting and monitoring for reliable AI apps.
- LangSmithComplete AI agent and LLM observability platform with tracing and real-time monitoring.
- Free plan
- HeliconeNot confirmed
- LangSmithYes
- Pricing
- HeliconeMonthly plans plus usage-based pricing
- LangSmithNot confirmed
- Paid plans from
- Helicone
What they share
From the platforms and integrations each website lists.
Integrations
BothNone in common
Only Helicone
- OpenAI
- Anthropic
- Azure
- LiteLLM
- OpenRouter
Only LangSmith
- OpenAI SDK
- Anthropic SDK
- Vercel AI SDK
- LlamaIndex
- PagerDuty
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Helicone and LangSmith yet.
Used either of them?
Your review makes this comparison better for the next person. Review Helicone or review LangSmith.