AI SupportSOFTWAREBrowse 30 tools 
Compare your candidates
Put two AI support products side by side, then test the differences that matter to your team: fit, channels, integrations, pricing, and operational tradeoffs.
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
Developer platform for building, testing, deploying and monitoring production voice and chat agents.
Developers and startups building phone agents with APIs, webhooks and custom logic.
Explore its buying criteria: AI support agents · Voice and contact-center AI · Agent builders
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
HubSpot Breeze: Eligible HubSpot Professional or Enterprise subscription plus shared HubSpot Credits. Required seats, subscription commitments and any onboarding depend on the chosen route. Credits are shared with other usage-based features; confirm included allowance, credit rate and overage or auto-upgrade settings. Retell AI: Voice cost combines infrastructure, speech, model, telephony and optional per-minute features. Chat is charged per AI message. Phone numbers cost $2/month; 20 concurrent calls are included, with additional concurrency $8/month each. Use the selected configuration to estimate the monthly bill. 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 Retell AI, they include prompts; documents/knowledge bases; API tools; business systems. 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: Customer Agent eligibility extends beyond Service Hub, but specific channels and CRM actions require configuration. Shared credit limits can pause usage or trigger additional purchased capacity under the account billing settings. Retell AI: Telephony, model, speech and other provider costs may be separate; technical integration work is expected.
Record your requirements and pilot results in the buyer worksheet →
On a small screen, swipe the table to compare both products.
| Criterion | Breeze Customer Agent | Retell AI Voice and Chat Agents |
|---|---|---|
| Best fit | Teams already using HubSpot CRM that want support automation tied to contact and ticket records. | Developers and startups building phone agents with APIs, webhooks and custom logic. |
| Key capabilities | CRM-aware answers; ticket automation; knowledge grounding; handoff; Breeze actions | voice agent builder; drag-and-drop flows; call transfer; DTMF; transcripts; simulation testing; webhooks |
| Company sizes | small; mid-market; enterprise | small; mid-market; enterprise; developer/startup |
| Channels | live chat; email; help desk; knowledge base | phone; web chat; SMS; telephony |
| Languages | multilingual; feature availability varies | multilingual voice/model options |
| Integrations | HubSpot CRM; Service Hub; Slack; marketplace apps; custom objects/APIs | telephony providers; webhooks; REST APIs; CRM/helpdesk via APIs |
| Knowledge sources | HubSpot knowledge base; CRM records; tickets; website content | prompts; documents/knowledge bases; API tools; business systems |
| Pricing model | Eligible HubSpot Professional or Enterprise subscription plus shared HubSpot Credits. Required seats, subscription commitments and any onboarding depend on the chosen route. Credits are shared with other usage-based features; confirm included allowance, credit rate and overage or auto-upgrade settings. | Voice cost combines infrastructure, speech, model, telephony and optional per-minute features. Chat is charged per AI message. Phone numbers cost $2/month; 20 concurrent calls are included, with additional concurrency $8/month each. Use the selected configuration to estimate the monthly bill. |
| Pricing summary | Text channels use 50 HubSpot Credits per resolved conversation ($0.50 at the published $10 USD/1,000-credit capacity-pack rate). Voice (beta) uses 50 credits per minute. Subscription, seats and any onboarding cost extra; credit prices and commitments must be checked for the account and region. | Pay as you go: advertised voice range $0.07–$0.31/minute and chat from $0.002/message (USD). No base subscription commitment; selected models, telephony and add-ons can increase the total. Enterprise is quoted. |
| Free plan or trial | A trial is offered; confirm eligible subscription, included usage and channel scope. Free and Starter tools do not provide a free Customer Agent entitlement. | $10 in free credits to build and test; pay-as-you-go access has no commitment. |
| What stands out | Native CRM context and workflow automation for HubSpot customers. | Transparent usage entry point and production-oriented voice tooling for developers. |
| Considerations | Customer Agent eligibility extends beyond Service Hub, but specific channels and CRM actions require configuration. Shared credit limits can pause usage or trigger additional purchased capacity under the account billing settings. | Telephony, model, speech and other provider costs may be separate; technical integration work is expected. |
Teams already using HubSpot CRM that want support automation tied to contact and ticket records.
Native CRM context and workflow automation for HubSpot customers.
Developers and startups building phone agents with APIs, webhooks and custom logic.
Transparent usage entry point and production-oriented voice tooling for developers.
Verify current pricing, limits, security, and required integrations directly with each vendor before purchasing.
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.
Inclusion is not an endorsement or performance guarantee. DocsBot publishes this directory. Corrections policy
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