Plan an agency AI stack without subscription sprawl
Group AI tools by client delivery workflow, seat count and monthly recurring cost.
Where agency AI budgets actually go
Agencies rarely overspend on one tool — they overspend by giving every role a full seat of every general assistant. A 6-person agency running ChatGPT Plus, Claude Pro and Gemini Advanced for the whole team can spend $350-400/month on overlapping general assistants alone, before design, automation or client-reporting tools are added. The fix is assigning roles, not banning tools: one general assistant agency-wide, then specialist tools only where a role uses them every day.
| Tool | Agency role | Approx. price | Source |
|---|---|---|---|
| ChatGPT Plus | Strategy, client comms, first-draft copy | ~$20/seat/mo | openai.com |
| Claude Pro | Long-form docs, code review, research synthesis | ~$20/seat/mo | anthropic.com |
| Canva Pro | Client visuals, social assets, brand kits | ~$13-18/seat/mo | canva.com |
| Zapier | Client reporting, lead routing, ops automation | Free tier, paid from task volume | zapier.com |
| Midjourney | Concept art, moodboards, ad creative | ~$10-24/mo | midjourney.com |
Prices are approximate planning figures, not live quotes — always confirm on the vendor's own pricing page before buying or renewing a seat.
A simple agency stack rule
Assign every tool to one recurring workflow before a seat gets purchased: account/strategy gets the general assistant, design gets Canva or a comparable visual tool, delivery/ops gets one automation tool, and specialist tools (image generation, video, transcription) are added per client only when a retainer actually needs them. Revisit the list quarterly — agency tool stacks grow fastest right after a new client win, and that is exactly when duplicate subscriptions get added without anyone noticing.
Related free guides
Compare this agency-wide view against a single freelancer's stack or a small business owner's stack.
AI tools for freelancers AI tools budget for small business ChatGPT vs Claude vs Gemini AIStackCost — AI API cost calculator
FAQ
How many seats does a 5-person agency usually need per tool?
Most small agencies share 1-2 seats of a general assistant across strategy and account roles, then add individual seats only for staff who use a tool daily, such as a designer on Canva or a writer on a long-form assistant.
Should client work be billed by AI tool cost or by hour?
Most agencies fold AI subscription cost into overhead and bill by hour or retainer, since per-client AI usage is hard to isolate. Track total monthly AI spend against total billable hours to see if the stack is paying for itself.
What is the biggest AI budget mistake agencies make?
Buying a paid seat for every general assistant (ChatGPT, Claude and Gemini) for every staff member. Pick one primary assistant agency-wide and only add a second when a specific client workflow genuinely needs it.
Are the prices on this page guaranteed?
No. Prices and plans change often. Use the official source links in the table before renewing or buying a new seat.