For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Atoms PlatformProduct OverviewDeveloper GuideAPI ReferenceMCPIntegrationsDeveloper ToolsChangelog
Atoms PlatformProduct OverviewDeveloper GuideAPI ReferenceMCPIntegrationsDeveloper ToolsChangelog
  • Capabilities
    • Welcome
    • Agents
    • Knowledge base
    • Voice and speech
    • Campaigns
    • Telephony
    • Integrations
  • Admin
    • Subscription & Plans
    • API Keys
    • Settings & Team
  • Reference
    • Support
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Voice AgentsModels
Voice AgentsModels
On this page
  • Manage Subscription
  • Plans
  • Overview
  • AI Agents
  • Calling & Campaigns
  • Our Models
  • Support & Security
  • Tools / Products
  • Questions?
Admin

Subscription & Plans

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Integrations

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API Keys

Built with

Location: On app.smallest.ai/dashboard, click the settings icon in the bottom-left of the sidebar. Subscription and billing live in two tabs:

  • Billing & Invoices — payment methods + invoice history
  • Explore Plans — compare plans and upgrade/downgrade

Subscription

Subscription panel

Manage Subscription

The Explore Plans tab shows the available plans and marks your current one as CURRENT. To change plans, pick a plan and click Upgrade or Downgrade Plan.

The Billing & Invoices tab shows:

SectionWhat’s there
Payment MethodCard on file. Added charges, auto-recharge credits, and invoices are billed to this card.
InvoicesAll / Pending / Paid filters over your invoice history

To add or change your card, click Add Payment Method on the Billing & Invoices tab.

Plans

Plans are available on Monthly or Annual billing. All plans include access to the no-code Agent Builder and Agentic Graph Builder.

Overview

Pay As You GoPersonalBusinessEnterprise
PriceUsage Based$49/month$1,999/monthCustom
Best ForPay only for what you use. No monthly commitment.Individual developers or early-stage teams building with voice AIGrowing teams deploying voice AI across products or workflowsHigh-volume, regulated, or OEM deployments requiring full control

AI Agents

FeaturePay As You GoPersonalBusinessEnterprise
No. of AI Agents5520Unlimited
Agentic Graph Builder / No-code Agent Builder✅✅✅✅
Prompt Engineering Support——1 agent free setupCustom
Extra Custom Agent Setup——$2,000 per agentCustom support
Voice Cloned Calls———Custom
Analytics (Coming soon)———Custom support

Calling & Campaigns

FeaturePay As You GoPersonalBusinessEnterprise
Cost/min (India)~$0.09~$0.09~$0.07Custom
Cost/min (US)~$0.15~$0.15~$0.12Custom
Campaigns60601,000Custom
Parallel Calls1110Custom
Add-On Phone Numbers—$10/number/month$10/number/monthCustom
Phone Number Rotation———Contact Sales

Our Models

FeaturePay As You GoPersonalBusinessEnterprise
Speech Model AccessAll modelsAll modelsAll modelsAll models
Lightning / 10K chars (USD)~$0.08~$0.08~$0.05Custom
Lightning V2 / 10K chars (USD)~$0.20~$0.20~$0.10Custom
No. of Voice Clones5515Unlimited
Professional Voice Clone Support———Unlimited
Custom Model Support———✅
Concurrency on WebSocket3 requests3 requests15 requestsCustom
RPM for TTS APIs1001001,000Custom

Support & Security

FeaturePay As You GoPersonalBusinessEnterprise
API AccessLimitedLimitedFull accessFull access
CRM Integrations——✅✅
On-premise Deployment———✅
Compliance (HIPAA, SOC2, etc.)———✅
SIP Server Access———✅
KYC Requirement———✅
SLAs & SupportEmail supportEmail supportSlack + Priority SupportCustom

Tools / Products

FeaturePay As You GoPersonalBusinessEnterprise
TTS Studio✅✅✅✅
AI Script Assistant✅✅✅✅
No. of TTS Projects1010500Custom

Questions?

Contact Sales

Custom pricing for enterprise or high-volume needs