PRICING

Choose Your Plan

BUSINESS

$97 /mo

Chat AI

3+ AI Chat Agents

$0.001+ /message

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Custom Knowledge Base (3M+ Characters)
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You get a storage balance you can share across your AI agents. For example, the Business plan includes 3M characters (about 450k–600k words). You can load it up with your business info, scrape your website, upload PDFs, docs, FAQs, or notes, and split it however you like. Need more? Add 1M characters for $5/month.

Embed Website Chatbot

Lead Capture + Scheduling

Live Chat + Human Handoff

Social Media Integrations

Voice AI

1+ AI Voice Agents

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Custom Knowledge Base (5M Characters Max)
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Train each AI voice agent with up to 5M characters of your business data (around 750k–1M words). That’s enough for your website, manuals, and FAQs, but not an entire library.

5M Characters Max (Train AI on Business Data)

$0.09+ /minute

Inbound + Outbound Phone Calls

Platform Features

Basic Analytics

Email Support

1-on-1 Onboarding Meeting

Get $100 in Free Credits

The Business plan is for businesses to create AI agents for themselves with no white labeling or re-selling functionality.

AGENCY

$297 /mo

Chat AI

50+ AI Chat Agents

$0.001+ /message

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Custom Knowledge Base (50M+ Characters)
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You get a storage balance you can share across your AI agents. For example, the Agency plan includes 50M characters (about 7.5–10 million words). You can load it up with your business info, scrape your website, upload PDFs, docs, FAQs, or notes, and split it however you like. Need more? Add 1M characters for $5/month.

Embed Website Chatbot

Lead Capture + Scheduling

Live Chat + Human Handoff

Social Media Integrations

Voice AI

3+ AI Voice Agents

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Custom Knowledge Base (5M+ Characters)
?
Train each AI agent with up to 1M+ characters of your business data, about 150k–200k words (a few books' worth). Enough for your website, manuals, and FAQs, but not an entire library.

5M Characters Max (Train AI on Business Data)

$0.09+ /minute

Inbound + Outbound Phone Calls

Everything in Business +

White Label Dashboard

Sell Chat AI & Voice AI to Unlimited Clients

Platform API Access

Use Your Own LLM API Keys

Advanced Analytics

1-on-1 Onboarding Meeting

Prompt Engineering Support

Daily Support Calls

Get $150 in Free Credits

The Agency plan is for agencies ready to use all white label features to sell AI agents to their clients.

ENTERPRISE

Custom Pricing

Chat AI Agents

  • Starting at 1,000+ AI Chat Agents

  • 1M+ Characters (Knowledge Base)

  • $0.001+ /message

Voice AI Agents

  • Starting at 50+ AI Voice Agents

  • 5M Characters Max (Knowledge Base)

  • $0.09+ /minute

Functionality Based on Your Needs:

  • Custom Integrations

  • Single Sign-On (SSO)

  • Custom API Endpoints

  • Local Storage (Optional)

  • Self Hosting (Optional)

  • Custom Dashboard Changes

  • MCP Server Integration

  • Custom AI Models

The Enterprise plan is for software companies or large agencies who want to use Stammer as a platform provider for deploying thousands of AI agents at scale.

Need More Power?

Chat AI Agent Add-Ons

  • Additional Chat Agents = $10 /month

  • Add to Knowledge Base (1M Characters) = $5 /month

Chat AI Agent Messaging

  • GPT-4.1-nano = $0.001 /message

  • GPT-4o-mini = $0.002 /message

  • GPT-4o = $0.01 /message

  • GPT-5 = $0.01 /message

  • Claude 3.7 sonnet = $0.03 /message

  • Grok 2 = $0.02 /message

Voice AI Agent Add-Ons

  • Additional Voice Agents = $35 /month

  • Additional Concurrent Calls = $15 /month

Voice AI Agent Calls

  • GPT-4.1-nano = $0.09 /minute

  • GPT-4o-mini = $0.11 /minute

  • GPT-4o = $0.13 /minute

  • GPT-5 = $0.12 /minute

What is Stammer.ai (TL;DR)?

Stammer.ai lets you build, sell, and manage both chat-based AI agents and voice-based AI agents under your own brand at scale. You can customize everything - name, logo, colors, links - so it looks and feels like your own platform.

What can AI Agents do?

Chat AI agents: Create website chatbots, integrate with social media channels or CRM platforms to handle customer support, knowledge recall, sales outreach, lead generation, and scheduling.

Voice AI agents: Answer inbound phone calls, replace voicemail, handle repetitive conversations, make outbound calls for lead qualification, and transfer to humans when needed.

How much do messages and calls cost?

Each AI agent (chat or voice) runs on the model you choose, and the cost depends on that model. You can also connect your own OpenAI API keys and skip these usage costs entirely (applies to chat messaging only).

Chat AI Agent Messaging

- GPT-4.1-nano = $0.001 /message

- GPT-4o-mini = $0.002 /message

- GPT-4o = $0.01 /message

- GPT-5 = $0.01 /message

- Claude 3.7 Sonnet = $0.03 /message

- Grok 2 = $0.02 /message

Voice AI Agent Calls

- GPT-4.1-nano = $0.09 /minute

- GPT-4o-mini = $0.11 /minute

- GPT-4o = $0.13 /minute

- GPT-5 = $0.12 /minute

What is the Agency Wallet?

The Agency Wallet is your prepaid balance for usage on the Stammer platform. Each time a chat agent replies or a voice agent answers a call, the cost for usage is taken from your wallet.

Your clients also get their own Sub-Account Wallet, where they pay you directly for usage. Example: You buy a GPT-4o chat response for $0.01 and resell it to your client for $0.05.

How do I add funds?

There are two ways to add funds to your Agency Wallet:

1. Manual top-up: Add money anytime with the “+ Add Balance” button.

2. Auto-billing: Set a low balance trigger and recharge amount. Example: Auto-reload $10 when your balance drops below $10.

Both of these methods are also available to your client's Sub-Account wallet.

Do I get credits when I sign up?

Yes. Paid plan subscribers get a free credit added to their Agency Wallet. This helps you test both chat and voice agents and onboard your first client without extra upfront costs.

How do agencies make money with Stammer?

Agencies can monetize Stammer in a few different ways:

Set-Up fees: Charge a one-time onboarding fee when you build and launch an agent for a client.

Subscriptions: Offer ongoing packages for chat or voice AI agents, usually $300–$500 per month per agent.

Usage fees: Add a markup on extra messages, call minutes, or storage (commonly 3–5x your cost).

You choose how to structure your offers. Use one, two, or all of these options. Either way, every AI agent you launch can generate recurring revenue.

How does billing work for clients?

Your clients pre-load funds into their Sub-Account Wallet. Each time a chat agent sends a message or a voice agent takes a call, funds are deducted at the price you set. When their balance runs low, they add more funds to their wallet. 100% of these funds gets sent to you as new revenue.