Direct answer
There's no fixed price — custom AI agent work is scoped, not templated. As a reference point, it typically starts above the €490/mo AI Sales Manager base (a fixed, repeatable product) and scales from there with the number of decision points, systems involved, and testing depth the use case needs. A Revenue Audit turns that into a real number for your specific scope — see below for what moves it up or down.
Why there's no fixed price, unlike AI Sales Manager
AI Sales Manager is a fixed product at €490/mo plus setup. Custom AI Agent Development is scoped work — the price depends on the process being automated, not a repeatable template.
What actually drives the number up or down
- Number of distinct decision points the agent needs to handle
- How much existing documentation exists vs. needs to be created from scratch — see [How to Prepare a Knowledge Base for an AI Agent](/ai-agent-knowledge-base-guide/)
- Number of systems it needs to read from or write to
- How much testing and edge-case coverage the use case requires — see [How to Test an AI Agent Before Launch](/testing-an-ai-agent-before-launch/)
What's genuinely cheaper than expected, and what isn't
Read-only agents (answering questions from a fixed knowledge base) are cheaper than agents that take actions (updating a CRM, triggering a workflow) — action-taking agents need more testing per the checklist above, which is real time, not padding.
How pricing is actually confirmed
Through a Revenue Audit or a direct scoping conversation once the process is understood — not a generic "packages" page, because two businesses asking for "a custom agent" can need genuinely different amounts of work.
Questions
Is this always more expensive than AI Sales Manager?+
Usually, since it's scoped rather than a repeatable product — but the scope determines the actual number, not a blanket multiplier.
Can I get a rough range before a full scoping call?+
A Revenue Audit gives a real, not estimated, number once the process is understood — a guess without that context wouldn't be honest.
Does the price include ongoing maintenance?+
That's agreed separately as part of scope — some agents need more ongoing tuning than others, covered in the proposal, not assumed.
How do I know if I need custom work instead of an off-the-shelf SaaS chatbot?+
If a SaaS chatbot's fixed decision trees can already cover your qualifying logic, that's cheaper — see [AI Sales Agent vs Traditional Chatbot](/ai-sales-agent-vs-chatbot/). Custom development is justified once your process has enough distinct decision points, systems, or edge cases that an off-the-shelf tool can't reasonably capture them, which is exactly what drives this page's cost breakdown.