First, match the product to the support job

Both products appear in agent builders. That overlap gives you a starting point; it does not mean the products cover the same channels, workflows, or deployment model.

Both profiles checked 2026-09-02.

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 buying

SiteGPT vs Voiceflow: buying questions

How should I compare SiteGPT and Voiceflow pricing?

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. Voiceflow: Usage-based billing for agency and partner workspaces; business pricing depends on deployment scope and self-serve or managed implementation. Ask for current plan, usage, collaborator and telephony charges before budgeting. 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 SiteGPT and Voiceflow use my existing knowledge?

The recorded sources for SiteGPT include website pages; sitemaps; PDFs/files; Q&A. For Voiceflow, they include websites; documents; knowledge bases; APIs; structured data. 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 SiteGPT vs Voiceflow pilot?

Use the same sample of real support requests, approved knowledge, and escalation rules in both pilots. How much can be configured without custom code? What testing and observability are included? Can the agent use your own APIs and business logic? Record answer quality, completed tasks, human handoffs, and total cost in the buyer worksheet. Check these specific cautions before launch: SiteGPT: Message and page caps apply; annual toggle can make headline prices differ from monthly billing. Voiceflow: Credits and external telephony/model charges apply; confirm included editors and production limits.

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
CriterionSiteGPT AI Support AgentVoiceflow AI Agent Platform
Best fitSmall businesses and agencies wanting a quick website chatbot without building a helpdesk.CX, product and design teams that need collaborative agent design, testing and channel deployment.
Key capabilitiesautomatic website crawl; citations; custom tone; human handoff; API; analyticsvisual conversation design; knowledge base; voice and chat; simulations; analytics; team collaboration
Company sizessmall; mid-market; agencysmall; mid-market; enterprise; agency
Channelswebsite widget; API; webhooksweb chat; voice; phone; API; custom interfaces
Languages95+ languages claimed by vendormultilingual via selected models/voice providers
Integrationswebsite embed; Zapier/webhooks; API; common chat/helpdesk toolsTwilio; Vonage; Salesforce; Zendesk; APIs/webhooks
Knowledge sourceswebsite pages; sitemaps; PDFs/files; Q&Awebsites; documents; knowledge bases; APIs; structured data
Pricing modelSubscription 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.Usage-based billing for agency and partner workspaces; business pricing depends on deployment scope and self-serve or managed implementation. Ask for current plan, usage, collaborator and telephony charges before budgeting.
Pricing summaryStarter $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.No current public monthly rate. Agency and partner users can start a free trial; business deployments require a pricing discussion. A managed enterprise deployment is likely to require a higher budget than a self-serve chatbot; confirm with a quote.
Free plan or trialFree trial available; paid subscription required for ongoing use.Free trial for agencies and partners, with no credit card required; business demos available.
What stands outSimple website-first setup and flat tiered limits for pages/messages.Strong collaborative design/testing workflow for both chat and voice agents.
ConsiderationsMessage and page caps apply; annual toggle can make headline prices differ from monthly billing.Credits and external telephony/model charges apply; confirm included editors and production limits.

Consider SiteGPT AI Support Agent 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.

Consider Voiceflow AI Agent Platform when…

CX, product and design teams that need collaborative agent design, testing and channel deployment.

Strong collaborative design/testing workflow for both chat and voice agents.

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

Language and multilingual support checks

A multilingual claim alone does not establish quality for your language. Test real questions, source material, channels, handoff, and the management interface.

DocsBot documents multilingual answers, including Japanese. Verify quality with your own content and workflow before buying.

For other providers, the precise Japanese and multilingual coverage shown here is not independently verified. Confirm the plan, model, channel, and handoff with each vendor.

DocsBot ↗

Inclusion is not an endorsement or performance guarantee. DocsBot publishes this directory. Corrections policy

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SiteGPT AI Support Agent and Voiceflow AI Agent Platform: which fits your business?

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