PromptLayer vs LangWatch
Ai Evaluation pricing comparison · 2026
PromptLayer pricing ranges from $0–$299/month, while LangWatch ranges from $0–$34/month. LangWatch is typically 66% more affordable, though your actual cost depends on tier and team size.
PromptLayer
AI Evaluation & Guardrails pricing intelligence
verified 28d ago
$10K
$90K
Verdict · list-price math · year 1
LangWatch
saves
$80K
vs
PromptLayer
· 25 seats
Cheapest
$10K
Spread
89%
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Enterprise
$90K/yr
year 1 license · $299/seat
Growth
$10K/yr
year 1 license · $34/seat
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
No structured sources
Last verified
4w ago
Confidence
Medium confidence
Sources
No structured sources
Last verified
today
Confidence
Limited 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 · 05
What users say
Aggregated, with sample sizes. We use whichever review platform has data.
User reviews
TrustRadius · Trustpilot · G2
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
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.
VS
PromptLayer and LangWatch both operate in the ai evaluation category. This page compares their published pricing.
Plan-by-Plan Pricing
| Plan | PromptLayer | LangWatch |
|---|---|---|
| Free | Free /month | Free /user/month |
| Pro | $50 /month | $34 /core-seat/month |
| Enterprise | $299 /month | Custom |