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. That overlap gives you a starting point; it does not mean the products cover the same channels, workflows, or deployment model.
HubSpot's AI customer agent for resolving support conversations within its CRM and Service Hub.
Teams already using HubSpot CRM that want support automation tied to contact and ticket records.
Explore its buying criteria: AI support agents · AI help desks.
Full HubSpot Breeze 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
HubSpot Breeze: Service Hub subscription plus shared HubSpot Credits. Professional includes 3,000 monthly credits and requires $1,500 onboarding; Enterprise includes 5,000 and requires $3,500 onboarding. Other credit-consuming features share the allowance. Paying monthly does not remove the annual commitment. 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 HubSpot Breeze include HubSpot knowledge base; CRM records; tickets; website content. 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: HubSpot Breeze: AI usage consumes credits and higher-tier Service Hub features may be required. 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 | HubSpot Breeze | Vapi |
|---|---|---|
| Best fit | Teams already using HubSpot CRM that want support automation tied to contact and ticket records. | Engineering teams that want low-level control of voice models, providers and call infrastructure. |
| Key capabilities | CRM-aware answers, ticket automation, knowledge grounding, handoff, Breeze actions | voice orchestration, custom models, telephony, function calling, webhooks, HIPAA/zero-retention options |
| Company sizes | small, mid-market, enterprise | small, mid-market, enterprise, developer/startup |
| Channels | live chat, email, help desk, knowledge base | phone, voice, web, telephony APIs |
| Integrations | HubSpot CRM, Service Hub, Slack, marketplace apps, custom objects/APIs | telephony providers, LLM providers, TTS/STT providers, webhooks/APIs |
| Knowledge sources | HubSpot knowledge base, CRM records, tickets, website content | prompts, custom functions, documents, external APIs |
| Pricing model | Service Hub subscription plus shared HubSpot Credits. Professional includes 3,000 monthly credits and requires $1,500 onboarding; Enterprise includes 5,000 and requires $3,500 onboarding. Other credit-consuming features share the allowance. Paying monthly does not remove the annual commitment. | 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 | Service Hub Professional or Enterprise route requires an annual commitment. Customer Agent uses 50 HubSpot Credits per resolved conversation; extra credits are $10/1,000, equivalent to $0.50/resolution before platform costs. | 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 | 14-day unlimited Customer Agent trial with purchase of at least one eligible Service Hub Professional or Enterprise seat. Free and Starter do not include this agent route. | Free trial credit available for initial testing; ongoing use is metered. |
| Differentiator | Native CRM context and workflow automation for HubSpot customers. | Composable developer stack with provider choice and infrastructure controls. |
| Considerations | AI usage consumes credits and higher-tier Service Hub features may be required. | Total per-minute cost includes selected STT, LLM, TTS and telephony providers; more engineering is required than turnkey tools. |
Teams already using HubSpot CRM that want support automation tied to contact and ticket records.
Native CRM context and workflow automation for HubSpot customers.
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.