Decagon

Customer service AI agents, voice agents

US$4.5B privateest. 2023decagon.ai (opens decagon.ai)Checked 11 Oct

The brief

Analyst view
  • Valued at $4.5B in Jan 2026, triple its value six months earlier; added 100+ enterprise customers in a year.
  • Agents follow Agent Operating Procedures: plain-language instructions with code where precision matters.
  • Voice 3 (Oct 2026) splits listening/speaking and reasoning into two parallel models to cut lag.

Technical approach

As reported
AOPs

Procedures in plain language

Teams write workflows as natural-language steps with code hooks, so non-engineers can change how the agent behaves.

Self-improvement

Agents that propose their own fixes

Duet Autopilot scans live conversations, drafts fixes, tests them on hundreds of past chats and asks a human to approve.

Voice

Two models in parallel

A fast model handles listening and talking while a stronger one reasons and calls tools, so the caller hears no dead air.

Primer