ResellPortal / Guides
The best Stammer.ai alternatives for agencies in 2026
Short answer: Stammer.ai is a white-label builder for AI chat and voice agents, at $99 a month for Pro White Label plus usage. If you would rather resell a finished AI receptionist with no monthly fee and no per-minute charges, ResellPortal costs $15, $39 or $99 a month wholesale per client. GoHighLevel suits agencies already on its CRM, Trillet suits voice-first agencies, BotPenguin suits chatbots on many channels, and Retell AI suits teams that build their own portal.
Stammer.ai lets an agency build chat and voice agents and resell them under its own brand. Its Pro White Label plan runs on your domain, logo and colors, clients prepay a wallet charged at your prices, and voice is billed per minute at rates that depend on the AI model. Agencies look at alternatives when they want a fixed cost per client instead of usage math, a finished product instead of a builder, or a CRM around the agent.
Quick comparison
| Alternative | Monthly fee | What you get | Best for |
|---|---|---|---|
| Stammer.ai | $49 Standard; $99 Pro White Label, plus usage | Chat and voice agent builder on your domain; client wallets at your prices | Agencies that design custom agents |
| ResellPortal | None. $15, $39 or $99 wholesale per client | A finished AI receptionist: website chat, booking and phone answering, no per-minute charges | Agencies selling to local businesses with no fixed cost |
| GoHighLevel | $97, $297 or $497, plus AI plans per sub-account | Voice and chat AI inside its CRM; resale on the $497 plan | Agencies whose clients run on its CRM |
| Trillet | From $99, then $0.12 a minute | White-label voice AI with client workspaces | Voice-first agencies with steady call volume |
| BotPenguin | From $600 a year, usage separate | White-label chatbots for websites, WhatsApp, Instagram, Telegram and more | Agencies selling chatbots across channels |
| Retell AI | None. $0.07 to $0.31 a minute | Voice agent infrastructure; the dashboard is not rebranded | Developers building their own client portal |
| Robofy | $799 to $1,199 a year | White-label chatbot panel on your custom domain | Agencies that prefer one yearly fee |
1ResellPortal
ResellPortal's AI Receptionist is a finished product rather than a builder. It reads up to 20 pages of the client's website in about a minute, then answers chats in the visitor's own language and collects a name and email or phone when someone wants a quote. Chat + Booking checks a Google, Outlook or Apple calendar and books the visit. The phone plan answers a new local US or Canada number, or the client's forwarded line, in a natural voice in one of 16 languages, transfers callers during business hours and screens spam. Every chat and call lands in one inbox with live takeover.
Wholesale is $15 for AI Chat, $39 for Chat + Booking and $99 for Chat + Booking + Phone, per client per month, against suggested retail of $49, $99 and $199. Calls are unlimited for normal business use, up to 15 minutes each, with no per-minute charges to you or the client. There is no monthly or setup fee: a $20 wallet, with a $10 bonus on a first deposit of $20 or more, pays wholesale as clients activate, and clients pay you through your own Stripe or PayPal. The trade-off: you cannot design custom call flows, outbound campaigns or agents for other jobs, and its numbers are US and Canada only. If you sell bespoke agents, a builder fits better.
2GoHighLevel
GoHighLevel puts voice and conversation AI inside its CRM, calendars and automations. Plans are $97, $297 and $497 a month, and reselling under your brand needs the $497 plan's SaaS mode. AI is billed per sub-account on top: the $50 AI Employee plan includes 100 voice minutes a month, the $97 plan is unlimited under fair use, and phone system charges apply.
3Trillet
Trillet sells white-label voice AI to agencies from $99 a month. Its Studio plan includes 1,000 minutes, and Agency includes 3,000 with unlimited client workspaces under your brand and domain. Beyond those, AI usage is $0.12 a minute and telephony is billed separately.
4BotPenguin
BotPenguin's white-label program starts at $600 a year, with usage charged on top. Partners put their brand, logo, domain and colors on the platform, send branded emails and invoices, set their own prices and keep all client revenue. Bots run on websites, WhatsApp, Instagram, Telegram and more.
5Retell AI
Retell AI is voice infrastructure that agencies build on. There is no platform fee: voice agents cost $0.07 to $0.31 a minute depending on the model and voice, numbers are $2 a month, and every account gets 20 concurrent calls. Callers hear your client's brand, but Retell says its dashboard is not rebranded, so you build the client portal yourself.
6Robofy
Robofy sells a white-label chatbot panel by the year, from $799 for 10 client licenses to $1,199 for unlimited clients. Every plan includes a custom domain, and clients never need a Robofy account.
When Stammer.ai is still the right choice
Stammer.ai is the better tool when the agent itself is your craft. If you build agents for different jobs, connect them to SMS, Facebook, Instagram and WhatsApp as well as websites, and want to resell replies, minutes and agents at your own markup, its builder gives you that control for $99 a month.
Common questions
How much does Stammer.ai cost?
Standard is $49 a month with 500 AI replies and 120 voice minutes, without white label. Pro White Label is $99 a month with 5 chat and 5 voice agents, extra agents at $10 a month and usage billed on top. Enterprise is priced on request.
Is there a Stammer.ai alternative without per-minute charges?
Yes. ResellPortal's phone plan is a flat $99 a month wholesale per client, with calls unlimited for normal business use. GoHighLevel's $97 AI Employee plan is unlimited under fair use, but it sits on top of a $97 to $497 platform plan.
Should a new agency start with a builder or a finished receptionist?
A finished receptionist is faster to sell, because the client trains it from their website and goes live without you writing prompts or call flows. A builder takes more setup per client but lets you sell agents for jobs a receptionist does not cover.
Create a free ResellPortal account to try the AI Receptionist demo and see live wholesale prices.
