Quick answer: For most small and mid sized staffing agencies, Claude Team or ChatGPT Business is the easiest way to give recruiters AI with MCP access to the ATS under admin control. Both start at $20 a seat a month billed annually, keep business data out of training by default, and let an admin decide which connections exist. Microsoft 365 Copilot fits agencies that live in Outlook and Teams, but connecting it to an outside ATS through MCP runs through Copilot Studio, which is more work.
The deciding question: who in your agency will own the connections? Pick the tool where that person can control them most easily.
Who this is for: agency owners choosing one AI assistant for the whole desk.
How do Claude, ChatGPT and Copilot compare for agencies?
| Claude Team | ChatGPT Business | Microsoft 365 Copilot | |
|---|---|---|---|
| Price per seat (annual) | $20 standard, $100 premium | $20 standard, $100 premium | $21 Copilot Business add on, or $30 enterprise add on, plus a Microsoft 365 plan |
| Price per seat (monthly) | $25 standard, $125 premium | $25 standard, $125 premium | Higher than annual; check your plan |
| Minimum seats | 2 | 2 | Business add on up to 300 users |
| Trains on your data by default | No | No | No |
| Who adds MCP connections | Owners add custom connectors; members connect with their own login | Admins control custom MCP connectors | Makers add MCP servers to agents in Copilot Studio |
| Best for | Agencies wanting the simplest owner controlled connector setup | Agencies already using ChatGPT across the desk | Agencies standardized on Microsoft 365 |
Sources: Claude Team pricing, ChatGPT Business overview, AlphaBOLD on Copilot, Digital Applied. Prices checked November 2026 and can change.
What does each plan cost a 10 recruiter agency?
On annual billing with standard seats, ten Claude Team or ChatGPT Business seats each come to $200 a month, or $2,400 a year. Claude Team standard seats are $20 a month billed annually or $25 monthly, and premium seats are $100 or $125, per Anthropic’s Team update. ChatGPT Business uses the same split: $20 annual or $25 monthly for a standard seat and $100 or $125 for a premium seat, per OpenAI’s help center.
Copilot is priced as an add on. Microsoft 365 Copilot Business is $21 a user a month at standard price for organizations with an eligible Microsoft 365 Business plan, and the enterprise Microsoft 365 Copilot is $30 a user a month, per AlphaBOLD’s licensing guide. Add the base Microsoft 365 license you already pay for.
Which one gives the owner the most control over MCP?
Claude Team is the most direct. Anthropic’s help center says that only Owners can add custom connectors to Team and Enterprise plans, and once a connector is added, users individually connect and enable it, so Claude can only reach tools and data that person already has access to, per Claude’s connector guide. That matches the owner held model we recommend in our agency AI policy.
ChatGPT Business offers custom connectors through MCP developer mode, which admins gate on Business and Enterprise workspaces, per Carly’s ChatGPT Business guide. Check the exact admin settings in your workspace before rollout.
Microsoft takes a different route. MCP is generally available in Copilot Studio, where makers add an MCP server as a tool on an agent, per Microsoft’s announcement. Because MCP servers connect through Power Platform connectors, your existing data policies govern them too, per StackOne’s Copilot Studio guide. Strong governance, but it usually needs someone comfortable in Microsoft’s admin tools.
Which works best with each ATS?
All three speak MCP, so the ATS question is mostly about whether your ATS has a server and how it signs in. Spott, for example, tells customers to add its server as a custom connector in Claude or ChatGPT and sign in with their Spott login, per Spott’s MCP guide. Bullhorn agencies need a third party bridge, compared in our Bullhorn MCP guide. For the full list of platforms, see agencies and MCP access and our MCP directory.
What about Gemini?
Agencies running on Google Workspace often already have Gemini. Like the three above, Gemini in Workspace keeps business data out of model training by default, per the same Digital Applied review. Check its current connector options against your ATS before choosing it as your MCP assistant.
Which should your agency choose?
| If your agency | Choose | Why |
|---|---|---|
| Wants one owner to control every ATS connection simply | Claude Team | Owner only custom connectors, per user sign in |
| Already has recruiters hooked on ChatGPT | ChatGPT Business | Same interface, admin gated connectors, no training by default |
| Runs everything in Outlook, Teams and SharePoint | Microsoft 365 Copilot | Lives inside Microsoft apps; MCP through Copilot Studio |
| Has two or three heavy AI users | Mix standard and premium seats | Premium only for the people who hit limits |
Whichever you pick, move everyone off personal accounts. Consumer plans can use chats for training unless the user opts out; business plans do not by default. Our candidate data guide has the details.
What should you set up on day one?
- Turn on SSO and remove personal accounts for anyone doing agency work.
- Add only approved connections, starting read only. See database protection steps.
- Keep tool confirmations on for anything that writes, sends or deletes, which also guards against resume prompt injection.
- Write the offboarding step: remove the seat and connections the day someone resigns.
Quick answers
Which is cheapest for a small agency?
Claude Team and ChatGPT Business both start at $20 a standard seat a month billed annually, with a two seat minimum.
Do any of them train on agency data?
Not by default on Claude Team, ChatGPT Business or Microsoft 365 Copilot. Consumer plans are different.
Can recruiters add their own ATS connection?
On Claude Team, no: only Owners add custom connectors. On ChatGPT Business and Copilot, admins control it.
Do we need premium seats?
Only for heavy users. Premium seats cost five times a standard seat on both Claude and ChatGPT.
Can we use more than one assistant?
You can, but each one doubles the connections and policies to manage. Most small agencies are better off with one.
The bottom line
Claude Team and ChatGPT Business are the simplest choices for most agencies: same price, no training on business data by default and admin control over connections. Choose Copilot if your agency already lives in Microsoft 365 and has someone to run Copilot Studio. Then let one owner manage every connection. For every guide in this series, see MCP for staffing agencies.
Sources: Anthropic Team, Claude connectors, OpenAI Business, Carly, AlphaBOLD, Microsoft, StackOne, Digital Applied, Spott
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