review

Decagon review

What Decagon costs, what its resolution-rate claims rest on, where it fits and where it does not. Scored on a published rubric, with every figure sourced.

By the ai-agents.reviews teamPublished 18 September 2026Updated 18 September 2026Prices and figures verified 18 September 2026

Decagon builds AI agents for chat, email and voice at large consumer, fintech and telecom brands. It publishes no prices and offers no trial. Procurement data puts the median contract at US$432,750 a year.

Bottom line

  • Best for: Large enterprises with high volume and a six-figure budget
  • Not for: Any team that wants to try before it buys
  • Price from: est. US$105,000 per year
  • The catch: No public prices, and the pricing most often observed by buyers is per conversation, so you may pay for conversations the AI does not resolve unless you negotiate otherwise.

Score breakdown

5.8

Decagon scores 5.8 out of 10 on rubric v1.0. The rubric rates what can be verified from public information, not hands-on performance.

Pricing transparencyWeight 25% · Level 2/5

Quote only, but the vendor documents its pricing model (for example per resolution or per outcome).

Performance evidenceWeight 25% · Level 4/5

Figures from named customers in published case studies.

Access and time to pilotWeight 20% · Level 1/5

Enterprise sales only, with reported minimum contracts in six figures.

Channel and language coverageWeight 15% · Level 4/5

Chat, email, and voice or messaging channels, with 30 or more languages.

Control and complianceWeight 15% · Level 4/5

Handoff, guardrails and testing or simulation tools; SOC 2 or ISO 27001; a GDPR data processing agreement.

Key facts

Vendor
Decagon AI, Inc.
Pricing model
Quote only
Price from
est. US$105,000 per year
Works on your existing helpdesk
Yes
Self-serve sign-up
No
Free trial
No
Channels
Chat, Email, Voice
Languages
70+ languages · German: Not documented · Spanish: Not documented
EU data residency
Not documented
Compliance
SOC 2, ISO 27001, HIPAA, PCI DSS, GDPR, CCPA
Integrations
Salesforce, Zendesk, Intercom, Kustomer, Amazon Connect, RingCentral, Confluence, Contentful
Named customers
Deutsche Telekom, Chime, Duolingo, Block, Avis Budget Group, Affirm, Oura, Rituals

Strengths

  • Runs on top of Salesforce, Zendesk, Intercom and Kustomer rather than replacing them.
  • Testing and simulation tools, with human approval required before changes go live.
  • A named customer result: Chime reports 70% resolution across chat and voice.

Weaknesses

  • Contracts observed by Vendr range from US$105,000 to US$923,183 a year.
  • EU data residency is not documented publicly, and German and Spanish are not individually confirmed.
  • Its headline numbers mix deflection and resolution without published definitions.

Pricing

Decagon publishes nothing. Vendr's procurement data shows a median contract of US$432,750 a year, ranging from US$105,000 to US$923,183; Vendr does not show its sample size. You will often see a "$50,000 platform fee" quoted online. We traced it only to competitors' blog posts and found no primary source, so we do not repeat it as fact.

Decagon pricing explained · AI agent cost calculator

Claimed vs reported performance

Reported figureSourceWho says so
80% (deflection, not resolution)Decagon AI, Inc.Vendor claim
70%ChimeNamed customer
80%DuolingoNamed customer

The company has been quoted citing average deflection above 80%, with no published definition. Chime reports 70% resolution and a 60% cut in support costs; Duolingo is shown at 80% deflection. One detail worth knowing: Chime appears as a customer of both Decagon and Sierra, so logo lists do not imply exclusivity.

For buyers in the United Kingdom The UK has no AI Act. An AI support agent is governed by the law you already know: UK GDPR and the Data Protection Act 2018, PECR for anything a chat widget stores on a device, and, for regulated financial firms, the FCA's Consumer Duty. Rules on automated decisions changed on 5 February 2026. AI customer service agents and the law in the United Kingdom

Verdict

Decagon is built for companies whose support volume justifies a contract in the hundreds of thousands of dollars and a roughly 6-week deployment. Its low score on access is a direct result of selling only through sales; judge it on a proof of value with your own tickets.

Frequently asked questions

How much does Decagon cost?

Decagon does not publish prices. Vendr's procurement data shows a median annual contract of US$432,750, with a range from US$105,000 to US$923,183.

Is there a Decagon free trial?

No. We found no self-serve sign-up or trial. The vendor recommends a staged rollout on part of your traffic instead.

Sources

  1. Decagon homepage — Decagon · 18 September 2026
  2. Decagon integrations — Decagon · 18 September 2026
  3. Decagon Voice — Decagon · 18 September 2026
  4. Decagon security — Decagon · 18 September 2026
  5. AI customer support setup — Decagon · 18 September 2026
  6. What is resolution-based pricing? — Decagon · 18 September 2026
  7. Chime case study — Decagon · 18 September 2026
  8. Rituals case study — Decagon · 18 September 2026
  9. Series D announcement — Decagon · 18 September 2026
  10. Introducing Duet Autopilot — Decagon · 18 September 2026
  11. Decagon AI raises $250M at $4.5B valuation — SiliconANGLE · 18 September 2026
  12. Decagon company profile — Sacra · 18 September 2026
  13. Decagon AI pricing (buyer data) — Vendr · 18 September 2026
  14. Decagon (company) — Wikipedia · 18 September 2026

This page was researched and drafted with AI assistance from the sources listed on it. We have not run hands-on tests of these products. Method: How we review