When two AI tools do the same thing

Suppose a sales team asks for a new AI workspace while already using an assistant from its productivity suite. Both products can summarize a document and draft an email. That looks redundant until you ask what happens next. One might stop at the draft while the proposed workflow also needs approved information saved to an account. Compare the finished task, not a list of verbs on two homepages.

Write a brief using a representative account and approved test data. Ask for the same source documents, draft, review step and final record from both options. Record what people must do between those outputs. If one option needs a spreadsheet export and a manual copy, include that work in the comparison. If both finish the same job acceptably, the second purchase needs another reason to stay.

Microsoft says usage of agents published to Microsoft 365 Copilot is included for licensed users, and select Microsoft 365 subscriptions include a Copilot Studio for Teams plan. Google sells its app and Agent Platform separately.^1,2,3

Ask the current contract owner to check the exact users, channels and features covered. “Included” can settle one line of the bill while leaving implementation, extra connections or another product outside it. Conversely, do not assign a whole suite subscription to this new workflow if the company will keep paying for it anyway. Separate existing costs from the extra cost of the decision in front of you.

Request two proposals where possible: extend what you have, and add the proposed specialist. Give both the same operating assumptions. Ask each supplier to identify dependencies on other paid products. A single brand on the cover does not guarantee a single bill or a single support team.

The reviewed commercial material describes Copilot Credit packs or metered usage, a per-seat Gemini Enterprise app and consumption-based Agent Platform billing. Nexus separately confirms per-role pricing without separate consultant-time charges.^4,5,6,7,8

Build a cost sheet around the task: additional licenses, usage, setup, connection maintenance, employee review and incident handling. Leave uncertain items visible. For the renewal workflow, ask what happens when a task retries, calls another model or needs a person to correct the result. Do not convert a credit price into a cost per renewal until you know which actions consume those credits.

Then compare a normal operating case with a busy period and an unsuccessful trial. Use volumes supplied by the process owner, not a vendor’s best-case demonstration. Keep quoted charges separate from estimates. A useful decision can still contain uncertainty, but the budget holder should see which assumptions would make the preferred option more expensive.

Glean describes a reusable index through APIs and MCP. Hebbia describes traceable document analysis and connections to deal-room material. WRITER offers embedded delivery staff for its platform.^9,10,11,12

Those differences can justify keeping a specialist beside a general assistant. In a deal team, the relevant comparison may be the quality of sourced analysis and the analyst’s review effort, not whether both tools can write prose. In a company with established search, another agent may be useful without rebuilding the index. Ask for the precise connection path before treating that combination as an available solution.

Write the decision as keep, connect or replace. “Keep” names the distinct job each tool performs. “Connect” names the handoff, the account it uses and its owner. “Replace” names the files, workflows and permissions that must move, plus what would trigger a return to the old setup. Do not cancel a working service on the strength of feature overlap alone.

Finish with a review date tied to a real event: the trial result, a renewal or a change in usage. The decision note should say what evidence would reverse it. For example, keep the specialist only if analysts can trace the required findings and the total review effort remains acceptable. That makes the purchase revisitable without reopening every sales presentation.