First, match the product to the support job

Decagon and SiteGPT sit in different directory categories. Decide which support job you need to solve before comparing features or prices.

The table below preserves each vendor’s scope and qualifiers. An unlisted feature is unverified here; it is not a claim that the feature is unavailable.

Before you decide

Decagon vs SiteGPT: buying questions

How should I compare Decagon and SiteGPT pricing?

Decagon: Per-conversation or per-resolution pricing, with negotiated rates affected by volume and commitment. Ask how resolutions are measured and which implementation and channel costs are included. SiteGPT: Subscription by chatbot, source-page, team-member and message allowances. Starter includes 1 bot and 1,000 pages; Growth 2 bots and 10,000 pages; Scale 3 bots and 50,000 pages. Extra 5,000-message packs cost $59/month. Refresh schedules and integrations vary by tier. Ask both vendors to quote the same expected workload, required channels, and implementation scope. Include required subscriptions and usage charges before comparing the total; the listed starting prices alone may cover different work.

Can Decagon and SiteGPT use my existing knowledge?

The recorded sources for Decagon include help docs; past tickets; product data; billing/CRM APIs. For SiteGPT, they include website pages; sitemaps; PDFs/files; Q&A. Ask each vendor to demonstrate ingestion or live access for the exact system you use, with permissions and refresh behavior. A source missing from this directory is not proof that a vendor cannot support it.

What should I test in a Decagon vs SiteGPT pilot?

Use the same sample of real support requests, approved knowledge, and escalation rules in both pilots. Can it cite or restrict answers to approved knowledge? What happens when the agent is uncertain? Which actions can it complete beyond answering? Record answer quality, completed tasks, human handoffs, and total cost in the buyer worksheet. Check these specific cautions before launch: Decagon: No public rate card; may require a separate helpdesk for human workflows and reporting. SiteGPT: Message and page caps apply; annual toggle can make headline prices differ from monthly billing.

Record your requirements and pilot results in the buyer worksheet →

On a small screen, swipe the table to compare both products.

Features, pricing, and fit
CriterionDecagonSiteGPT
Best fitHigh-volume digital businesses with complex workflows and engineering resources for integrations.Small businesses and agencies wanting a quick website chatbot without building a helpdesk.
Key capabilitiesautonomous resolution, tool/API actions, chat and voice, ticket analysis, internal documentation supportautomatic website crawl, citations, custom tone, human handoff, API, analytics
Company sizesmid-market, enterprisesmall, mid-market, agency
Channelsweb chat, voice, email/helpdesk integrationswebsite widget, API, webhooks
IntegrationsStripe, Zendesk, Salesforce, custom APIswebsite embed, Zapier/webhooks, API, common chat/helpdesk tools
Knowledge sourceshelp docs, past tickets, product data, billing/CRM APIswebsite pages, sitemaps, PDFs/files, Q&A
Pricing modelPer-conversation or per-resolution pricing, with negotiated rates affected by volume and commitment. Ask how resolutions are measured and which implementation and channel costs are included.Subscription by chatbot, source-page, team-member and message allowances. Starter includes 1 bot and 1,000 pages; Growth 2 bots and 10,000 pages; Scale 3 bots and 50,000 pages. Extra 5,000-message packs cost $59/month. Refresh schedules and integrations vary by tier.
Pricing summaryCustom quote; no public monthly price. Its enterprise deployment is likely to require a higher budget than self-serve tools; confirm with a quote.Starter $59/month, Growth $129/month, Scale $429/month (USD, billed monthly). Includes up to 4,000 / 10,000 / 40,000 messages respectively with GPT-4.1 mini; larger models use more allowance. Enterprise is quoted.
Free plan or trialDemo available; no public free plan or self-serve trial confirmed.Free trial available; paid subscription required for ongoing use.
DifferentiatorConcierge positioning focused on personalized support plus actions in business systems.Simple website-first setup and flat tiered limits for pages/messages.
ConsiderationsNo public rate card; may require a separate helpdesk for human workflows and reporting.Message and page caps apply; annual toggle can make headline prices differ from monthly billing.

Consider Decagon when…

High-volume digital businesses with complex workflows and engineering resources for integrations.

Concierge positioning focused on personalized support plus actions in business systems.

Consider SiteGPT when…

Small businesses and agencies wanting a quick website chatbot without building a helpdesk.

Simple website-first setup and flat tiered limits for pages/messages.

Verify current pricing, limits, security, and required integrations directly with each vendor before purchasing.