LangSmith vs Humanloop — Pricing (2026)
Compare / LangSmith vs Humanloop
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Team size
25 seats

LangSmith vs Humanloop

Ai Observability pricing comparison · 2026

LangSmith pricing ranges from $0–$500/seat/month + per trace, while Humanloop ranges from $0–$0/custom. Humanloop is typically 100% more affordable, though your actual cost depends on tier and team size.

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See pricing on each vendor's site
Above-the-fold path — each link opens the vendor's pricing page in a new tab.
Visit LangSmith pricing
Free plan limits → Discount programs →
Visit Humanloop pricing
Free plan limits → Discount programs →
Compare
2 products · AI Observability & Evals
Side-by-side · live
LangSmith
LangSmith pricing starts at $0/month on the Developer plan, offering LLM tracing, prompt v
verified today
View pricing →
Humanloop
Humanloop offers a Free Trial plan at no cost, allowing teams to evaluate the platform bef
verified 1d ago
View pricing →
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Usage-based
$2.5 per 1k traces
see vendor pricing for volume tiers
Pricing model unknown
Pricing model unknown
no public list price found
REF · 01

Sources & confidence

Every dollar amount and contract clause below traces back to a sourced fact. We don't manufacture composite scores.

Where this data comes from
Vendr · TrustRadius · Reddit · BBB · official docs
Sources 2 sourced facts
2 hidden-cost
Last verified today
Confidence Medium confidence
Sources No structured sources
Last verified 1d ago
Confidence Medium confidence
REF · 02

Plans at a glance

Every tier per product. Lock one to drive the cost row above and reveal a tier-specific outbound CTA.

Tier ladder
Click a tier to lock the cost row to it. Locking surfaces a tier-specific Visit CTA.
REF · 03

Hidden costs

Each cost is severity-ranked, with the dollar range quoted from its source (Vendr, Reddit, TrustRadius, BBB, official docs) — never our estimate.

Beyond the sticker
Severity-ranked, sourced
2 documented
  • LangGraph Platform Separate Pricing
    10-25% of license costs
    1 source
  • Hosted Platform Features Not Disclosed Pre-Login
    $39/month
    1 source
No hidden costs documented
REF · 05

What users say

Aggregated, with sample sizes. We use whichever review platform has data.

User reviews
TrustRadius · Trustpilot · G2
No public ratings yet
Best for
Individual developers getting started
Watch out
Premium pricing relative to open-source self-hosted alternatives like Langfuse
No public ratings yet
Best for
Evaluating the platform
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
Visit LangSmith pricing
Free plan limits → Discount programs →
Visit Humanloop pricing
Free plan limits → Discount programs →
License cost is computed from publicly listed plans (real math, list price × seats). Median annual cost is from Vendr's deal flow when available — see source badges. Hidden costs and contract terms each cite their own sources. We do not invent composite scores.
Ai Observability

LangSmith

$0–$500
/seat/month + per trace
3 plans · Free tier
Full pricing breakdown →
VS
Ai Observability

Humanloop

$0–$0
/custom
2 plans · Free tier
Full pricing breakdown →

LangSmith and Humanloop both operate in the ai observability category. This page compares their published pricing.

Plan-by-Plan Pricing

Plan LangSmith Humanloop
Developer Free /seat/month Free /month
Plus $39 /seat/month Custom
Enterprise Custom —

Continue researching

LangSmith

Humanloop

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