LangSmith vs Portkey

At a glance

Both have a free plan.
LangSmith's lowest paid plan is Plus at $39 per seat per month, then pay as you go, as of November 14, 2026.
Portkey's lowest paid plan is Production at $49 per month, as of November 14, 2026.
They list no integrations in common.
Both list SSO.
Only Portkey lists SOC 2, ISO 27001, GDPR and HIPAA.
Portkey has a public API. We haven't confirmed one for LangSmith.
LangSmith can be self-hosted. We haven't confirmed that for Portkey.

From each tool's own website, checked on the dates below, and from published reviews.

From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.

Integration with OpenAI SDK, Anthropic SDK or Vercel AI SDK. We haven't found them on Portkey's website.

Integration with OpenAI, Anthropic or MongoDB. We haven't found them on LangSmith's website.
SOC 2, ISO 27001, GDPR or HIPAA. We haven't found them on LangSmith's website.

No reviews yet

Nobody has reviewed LangSmith yet. Its rating shows once it has 3 reviews.

No reviews yet

Nobody has reviewed Portkey yet. Its rating shows once it has 3 reviews.

What it does: LangSmithComplete AI agent and LLM observability platform with tracing and real-time monitoring.; PortkeyAI gateway and observability for AI teams.
Free plan: LangSmithYes; PortkeyYes
Pricing: LangSmithNot confirmed; PortkeyNot confirmed
Paid plans from: LangSmith

From the platforms and integrations each website lists.

BothNone in common

Only LangSmith

Only Portkey

Reviewers who say they used one of these before the other.

No reviewer has said they moved between LangSmith and Portkey yet.

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