LangGraph Platform vs Stack AI
Ai Agent Platforms pricing comparison · 2026
LangGraph Platform pricing ranges from $0–$39/per seat / month + usage, while Stack AI ranges from $0–$0/per month + custom enterprise. Stack AI is typically 100% more affordable, though your actual cost depends on tier and team size.
LangGraph Platform
LangGraph Platform offers three pricing tiers in 2026.
verified today
View pricing →
Stack AI
Stack AI offers a Free plan at no cost, making it accessible for individuals and teams beg
verified 27d 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
What buyers actually pay
median, annual
Vendr deal-flow data. The real benchmark, not list price.
No Vendr data
—
Not in Vendr's deal flow
Median annual
$500/yr
Vendr · n=38
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
today
Confidence
Medium confidence
Sources
1 sourced fact
Vendr median
Last verified
3w 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 · 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
LangGraph Platform and Stack AI both operate in the ai agent platforms category. This page compares their published pricing.
Plan-by-Plan Pricing
| Plan | LangGraph Platform | Stack AI |
|---|---|---|
| Developer | Free /month | Free /month |
| Plus | $39 /per seat / month | Custom |
| Enterprise | Custom | — |