Decagon vs Sierra Pricing | Costbench
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Team size
25 seats

Decagon vs Sierra

AI Customer Support APIs pricing comparison · 2026

Decagon pricing ranges from $0–$300000/year, while Sierra ranges from $0–$500000/year. Decagon is typically 40% more affordable, though your actual cost depends on tier and team size.

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2 products · AI Customer Support APIs
Side-by-side · live
D
Decagon
AI Customer Support APIs pricing intelligence
verified 5w ago
$275K $340K
View pricing →
Sierra
AI Customer Support APIs pricing intelligence
verified 10d ago
$275K $340K
View pricing →
Verdict · Vendr median · year 1
Sierra saves $65K vs Decagon · 25 seats
Cheapest $275K
Spread 19%
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Pricing model unknown
Pricing model unknown
no public list price found
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.
Median annual
$340K/yr
Vendr · n=3 · limited data
↓ Lowest median
Median annual
$275K/yr
Vendr · n=3 · limited data
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 8 sourced facts
6 hidden-cost · Vendr median · 1 review platform
Last verified 1mo ago
Confidence Medium confidence
Sources 3 sourced facts
1 hidden-cost · Vendr median · 1 review platform
Last verified 1w 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
5 documented
  • Annual Platform Fee
    $50,000
    1 source
  • Professional Services Fees
    1 source
  • Separate Helpdesk Costs
    $2,000 to $5,000+ per month
    1 source
  • Ongoing Support and Customization
    1 source
  • Volume Spike Exposure
    1 source
1 documented
  • Platform Contract
    $150,000 per year
    1 source
REF · 04

Contract terms

The fine print, surfaced. Green = buyer-friendly. Each clause backed by a quoted source.

Decagon
Sierra
Auto-renewal
Yes
—
Cancellation
—
—
Commitment
five- to six-figure annual minimum commitment
Annual minimums are common for platform contracts.
Price escalation
—
—
Can downgrade
—
—
REF · 05

What users say

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

User reviews
TrustRadius · Trustpilot · G2
G2
4.9out of 5 (18)
Best for
B2C + B2B consumer brands
Watch out
Implementation Requires Engineering Resources
G2
4.4out of 5 (14)
Best for
Large consumer brands (Sonos, SiriusXM, Casper)
Watch out
Difficulty maintaining context in longer conversations, leading to repetitive or irrelevant responses.
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
Visit Decagon pricing
Discount programs →
Visit Sierra pricing
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 Customer Support APIs

Decagon

$0–$300000
/year
1 plan
Full pricing breakdown →
VS
AI Customer Support APIs

Sierra

$0–$500000
/year
1 plan
Full pricing breakdown →

Plan-by-Plan Pricing

Plan Decagon Sierra
Enterprise (conversation-priced) Custom Custom

Market Intelligence

Decagon

Median annual cost
$340,000
Based on
3 deals

Sierra

Median annual cost
$275,000
Based on
3 deals

What Users Say

Decagon

G2
4.9out of 5 (18)
Top complaints
  • Implementation Requires Engineering Resources
  • High Cost and Opaque Pricing
  • Limited Control and Configurability

Sierra

G2
4.4out of 5 (14)
Top complaints
  • Difficulty maintaining context in longer conversations, leading to repetitive or irrelevant responses.
  • AI responses can sometimes feel generic and lack the depth or nuance of human conversation.
  • Limited transparency on technical details and pricing, making it harder to assess long-term costs and integration.

Contract Terms

Term Decagon Sierra
Auto-renewal Yes —
Cancellation — —
Minimum commitment five- to six-figure annual minimum commitment Annual minimums are common for platform contracts.

Continue researching

Decagon

Sierra

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