Stammer AI vs SiteGPT: Which AI Chatbot Is Better for Agencies?

Stammer AI vs SiteGPT is a comparison that highlights a fundamental divide in how AI chatbot platforms approach their market. Stammer AI is built for agencies that want to white-label AI products and resell them to multiple clients under a custom brand. SiteGPT is focused on a narrower mission: building a smart, site-specific AI chatbot trained exclusively on your website content for direct customer support. Both platforms solve real problems, but they serve different audiences. In this comparison, we break down features, pricing, and agency suitability, and explain why Robofy stands out as the better option for agencies who want the website-focused simplicity of SiteGPT combined with genuine white-label reseller economics.

What is Stammer AI?

Stammer AI is an agency-focused white-label platform for building and reselling AI chatbots and voice agents. It provides a fully branded dashboard, sub-account management for client portals, and multi-channel deployment across websites, WhatsApp, SMS, Facebook Messenger, and Instagram DMs. White-label branding starts at the Agency plan ($197/mo for up to 30 agents and 30 sub-accounts), with a Full SaaS tier at $497/mo for unlimited scale. Stammer also charges per-message fees on top of subscriptions, ranging from around $0.001 per message for lightweight models to $0.03+ per message for premium models, which adds significant cost variability for agencies managing high-traffic deployments.

What is SiteGPT?

SiteGPT is a streamlined AI chatbot platform that trains entirely on your website content. The core idea is simple: point it at your site, and it builds a chatbot that can answer visitor questions using only your own content. This focus on website-centric training makes SiteGPT fast to set up and accurate for businesses that want a chatbot mirroring their own documentation or product pages. It supports basic customization of the chat widget's appearance and offers integrations with common tools.

SiteGPT plans start at $39/mo for basic usage with a 7-day free trial. However, white-label branding is limited, there is no dedicated agency reseller program, and sub-account management for serving multiple clients is not part of its core design. For individual businesses deploying a chatbot on a single website, SiteGPT is a clean and capable tool. For agencies building a scalable white-label chatbot business, it falls short on the infrastructure side.

Feature Comparison: Stammer AI vs SiteGPT vs Robofy

SiteGPT's core strength is its simplicity and website focus. If a client only needs a chatbot that answers questions based on their website content, SiteGPT is easy to deploy and does that job well. But the moment an agency wants to resell that chatbot under their own brand, serve multiple clients from a single dashboard, or offer clients a branded portal, SiteGPT's feature set runs out quickly. Stammer AI handles those agency needs but at a higher price point with variable billing. Robofy covers both: website and document-trained chatbots with full white-label reseller infrastructure and flat-fee predictable pricing.

Pricing Comparison

SiteGPT's pricing is accessible for single-website deployments. Its Plus plan at $189/mo supports more chatbots, but without a true white-label reseller framework, agencies are essentially buying multiple single-use licenses rather than a platform they can manage and brand cohesively. Stammer AI's $197/mo white-label entry is higher than SiteGPT's basic plans, but it provides the agency infrastructure SiteGPT lacks. Robofy matches Stammer's agency feature depth while removing the per-message billing component that makes Stammer costs unpredictable at scale.

Stammer AI vs SiteGPT: Agency Verdict

For the Stammer AI vs SiteGPT comparison from an agency reseller perspective:

• SiteGPT wins for single-website deployments where a business simply needs a fast, accurate chatbot built from their own content. If you are deploying for yourself or a single client who does not need branding, SiteGPT is clean and effective.
• Stammer AI wins for agencies that need multi-channel AI automation including voice, WhatsApp, and social media, and who can manage the variable billing model. It is purpose-built for agency reselling in a way SiteGPT is not.
• Robofy wins for agencies primarily focused on website-based chatbot reselling with predictable costs. It combines SiteGPT's website-training simplicity with Stammer's agency infrastructure, adds flat-fee pricing, and removes per-message billing entirely.

Why Robofy Is the Better Choice

For agencies building a white-label chatbot reseller business, Robofy delivers the optimal combination:

• Website and document training covers the same use cases SiteGPT excels at, without the constraint of website-only data sources.
• Full white-label branding is built into the reseller plan, not a paid add-on or a limited option as it is on SiteGPT.
• Flat monthly reseller fee means your cost is the same whether your clients generate 200 or 20,000 chatbot conversations per month, unlike Stammer AI's variable per-message billing.
• 100% revenue retention and 0% commission gives your agency full control over pricing and margin, just as Stammer offers but without the usage cost overhead.
• Sub-account management lets you manage all client chatbots from one agency dashboard with branded client portals for each.

Explore the Robofy reseller program or review the full Stammer AI alternatives overview to see how Robofy compares against every major platform in the market.