AI SUPPORTSOFTWAREBrowse 30 tools 
Side-by-side comparison
Compare audience fit, channels, integrations, knowledge sources, public pricing information, and operational considerations.
Both products appear in ai support agents and agent builders. That overlap gives you a starting point; it does not mean the products cover the same channels, workflows, or deployment model.
No-code AI customer-experience agents trained on company content and deployable to support channels.
Startups, agencies and support teams seeking a fast website chatbot with analytics and team controls.
Explore its buying criteria: AI support agents · Knowledge-base chatbots · Agent builders.
Full Chatbase profile and vendor sources · Checked 2026-09-02
Developer infrastructure for configuring and deploying advanced voice AI agents with chosen models and telephony.
Engineering teams that want low-level control of voice models, providers and call infrastructure.
Explore its buying criteria: AI support agents · Voice and contact-center AI · Agent builders.
Full Vapi profile and vendor sources · 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 you decide
Chatbase: Subscription with monthly message-credit and member allowances. Standard adds voice, telephony, helpdesk and API access. Auto-recharge is $40 per 1,000 message credits; extra agents cost $25/month and branding removal $99/month. Model choice affects credit use. Vapi: Usage-based hosting plus provider costs for transcription, language models, speech and telephony. Bring-your-own keys move provider billing to your own account. Includes 10 concurrent calls; extra lines cost $10/month each. Scale uses a quoted platform fee and committed volume under an annual contract. 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.
The recorded sources for Chatbase include URLs; sitemaps; PDFs; documents; tickets. For Vapi, they include prompts; custom functions; documents; external APIs. 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.
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: Chatbase: Credits, custom-domain, branding and advanced features can be add-ons; model total cost at volume. Vapi: Total per-minute cost includes selected STT, LLM, TTS and telephony providers; more engineering is required than turnkey tools.
Record your requirements and pilot results in the buyer worksheet →
On a small screen, swipe the table to compare both products.
| Criterion | Chatbase | Vapi |
|---|---|---|
| Best fit | Startups, agencies and support teams seeking a fast website chatbot with analytics and team controls. | Engineering teams that want low-level control of voice models, providers and call infrastructure. |
| Key capabilities | multi-agent setup, source suggestions, analytics, ticket sources, API/embed, human handoff | voice orchestration, custom models, telephony, function calling, webhooks, HIPAA/zero-retention options |
| Company sizes | small, mid-market, agency | small, mid-market, enterprise, developer/startup |
| Channels | website widget, API, Slack, WhatsApp/other channels vary | phone, voice, web, telephony APIs |
| Integrations | Slack, Zendesk/ticket sources, webhooks, APIs | telephony providers, LLM providers, TTS/STT providers, webhooks/APIs |
| Knowledge sources | URLs, sitemaps, PDFs, documents, tickets | prompts, custom functions, documents, external APIs |
| Pricing model | Subscription with monthly message-credit and member allowances. Standard adds voice, telephony, helpdesk and API access. Auto-recharge is $40 per 1,000 message credits; extra agents cost $25/month and branding removal $99/month. Model choice affects credit use. | Usage-based hosting plus provider costs for transcription, language models, speech and telephony. Bring-your-own keys move provider billing to your own account. Includes 10 concurrent calls; extra lines cost $10/month each. Scale uses a quoted platform fee and committed volume under an annual contract. |
| Pricing summary | Free plan; Hobby $40/month (700 message credits), Standard $150/month (4,000), Pro $500/month (15,000), billed monthly in USD. Enterprise is custom-priced. | Pay as you go: $0.05/minute for call hosting or $0.005/message for SMS/chat hosting (USD), plus model, speech and transport-provider charges. These are platform fees, not the full cost of a call. |
| Free plan or trial | Free plan with 50 message credits/month and 1 member; free agents are deleted after 14 days of inactivity. Paid plans offer a 7-day trial. | Free trial credit available for initial testing; ongoing use is metered. |
| Differentiator | Self-serve agent creation with support-oriented source ingestion and analytics. | Composable developer stack with provider choice and infrastructure controls. |
| Considerations | Credits, custom-domain, branding and advanced features can be add-ons; model total cost at volume. | Total per-minute cost includes selected STT, LLM, TTS and telephony providers; more engineering is required than turnkey tools. |
Startups, agencies and support teams seeking a fast website chatbot with analytics and team controls.
Self-serve agent creation with support-oriented source ingestion and analytics.
Engineering teams that want low-level control of voice models, providers and call infrastructure.
Composable developer stack with provider choice and infrastructure controls.
Verify current pricing, limits, security, and required integrations directly with each vendor before purchasing.