Decagon vs Sierra AI vs Intercom Fin vs Ada
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Decagon
Enterprise AI customer-support agents
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Sierra AI
Branded AI agents for customer experience
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Intercom Fin
Fin: usage-priced AI agent now part of a $3.6B Salesforce buy
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Ada
Support automation ops teams love; Trustpilot users don't
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| RECATOOLS Score | 7 / 10 | 7.2 / 10 | 7.3 / 10 | 7.5 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Enterprise | Enterprise | Paid | Enterprise |
| Free tier | — | — | 14-day free trial | — |
| Paid from | — | — | $0.99/resolution; $9.99/lead qualification; $49.50/mo min standalone | — |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✗ | ✗ | ✗ | ✗ |
| Free to use | ✗ | ✗ | ✗ | ✗ |
| Users | — | More than 40% of the Fortune 50 as customers; company reported more than $150M ARR as of early 2026 | — | — |
| Founded | 2023 | 2023 | 2023 | 2016 |
| Maker | — | — | — | — |
| Verdict | Decagon builds enterprise-grade autonomous AI customer-support agents that resolve (not just deflect) tickets across chat, email and voice, integrating with internal systems via APIs to take real actions like billing loo... |
Sierra builds bespoke, action-taking AI agents for enterprise customer service — resolving issues, processing cancellations, handling upsells — with deep systems integration and strong guardrails. The May 2026 raise ($95... |
Fin (Intercom rebranded the whole company around its AI agent in May 2026) resolves customer conversations across chat, email, WhatsApp, SMS, phone and Slack, billed per outcome at $0.99 rather than per seat, and can now... |
Ada is a mature, enterprise-grade AI agent platform for support — a reasoning engine that resolves chat, email, voice and social conversations by grounding answers in your knowledge base, with a no-code Playbook builder... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.