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    ChatGPT for consultants: what to trust it with, and what to never

    Clients pay consulting rates for thinking they can increasingly detect the absence of. Where AI belongs in the workflow, and the NDA rule with no exceptions.

    A note before the split. This is general guidance rather than professional advice. Your firm's policy, your engagement terms and your client's data requirements override everything below. Tools change constantly too, so the specifics are a snapshot and the judgement is the durable part. It applies whether your firm runs on ChatGPT, Claude or a sanctioned internal tool.

    Consulting has adopted AI faster than almost any profession, which makes sense for a job built out of documents. It has also produced the sharpest version of the problem. A consultant's deliverable was never really the deck or the report, it was the thinking inside them, and the thinking is exactly what these tools counterfeit most fluently. A framework-shaped slide with generic content underneath looks finished at ten paces and reads hollow at one, and clients have been standing at one pace for a while now.

    So the useful question is not whether to use ChatGPT on an engagement, because nearly everyone around the table already does. The question is where in the workflow it belongs, and the answer follows one distinction all the way down. The tool builds scaffolding. You supply what makes the scaffolding worth the fee.

    The short answer. Trust ChatGPT with structure and volume: storylines, workplans, first drafts of frameworks and summaries, synthesis of your own anonymised notes, industry orientation before a kickoff, and the slide grind. Never put client-identifiable material into a consumer account, never use a statistic it volunteered without finding the real source, and never ship its generic output as insight. Clients can increasingly tell, and the moment they can tell, the fee stops making sense.

    Where it earns its place

    These are the jobs where the tool converts blank-page time into sharpening time. The pattern across all five is the same: it produces the structure fast, and the client-specific substance goes in during your edit.

    The job What that looks like
    Storylines and workplans A deck storyline or phase plan to react to in minutes, instead of a blank page to fear
    First drafts of frameworks and summaries Executive summaries, section intros and framework skeletons that take your edit rather than your evening
    Synthesising your own notes Interview and workshop notes clustered into themes on request, anonymised before they go in
    Industry orientation Conversational fluency in an unfamiliar sector the week before kickoff, possibly its highest-value hour
    The slide grind Ten wordings of the same framework, or one message reshaped for the steering committee and the working team

    Where it will hurt you

    The dangers cluster where the tool's confidence outruns its grounding. Each of these has ended careers or engagements somewhere, which is why they get a table rather than a caveat.

    Keep it away from Because
    Client-identifiable material on consumer accounts Engagements run under NDAs, diligence work touches price-sensitive information, and consumer tiers can train on what you paste. That turns a shortcut into a breach
    Statistics it volunteers It will offer "73 per cent of mid-market firms" with total confidence and no source behind it. Every number gets a real citation or gets cut
    The analysis itself, unchecked Its reasoning is plausible rather than grounded in your client's situation. Its conclusions are hypotheses to test, never findings to ship
    Generic frameworks shipped as insight Boilerplate two-by-twos and committee-voiced prose have a recognisable flavour, and a client who detects it starts questioning the fee
    Current market and company facts Its knowledge has a cutoff, so anything about the market as it stands today needs a live source before it reaches a deliverable

    The client-data rule

    Consulting's confidentiality obligation is contractual, which makes this rule easier to state than most professions get. Nothing that could identify the client, the deal or the counterparties goes into a consumer AI account. The NDA does not contain a productivity exception.

    The workable version is aggressive anonymisation. The client becomes "a mid-market logistics business", the numbers get stripped or rounded beyond recognition, and the situation becomes a fact pattern. At that altitude the tool can still help with structure and language while the engagement stays inside its walls.

    Where your firm provides a sanctioned enterprise tool, the sensitive synthesis belongs there instead. And where the client's own data requirements are stricter still, the client's rules win, which is worth knowing before the data room opens rather than after.

    The line that holds it together

    These tools have surfaced an uncomfortable truth, which is that some consulting output was always scaffolding wearing a fee. Clients now have a machine that produces scaffolding for roughly nothing, so the part they are actually paying for has become more visible, not less. That is good news for anyone who intends to supply it.

    Let the tool build the structure, grind the slides and orient you fast. Then spend the reclaimed hours where the fee lives: the client-specific insight, the judgement call the data does not make by itself, the recommendation you would defend in the steering committee. The consultants worried about being replaced by ChatGPT are mostly the ones producing what it produces, and the fix for that was never going to be a better prompt.

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    Common questions

    Can consultants use ChatGPT on client work?

    Yes, for structure and volume. That means storylines, workplans, first drafts of frameworks and summaries, synthesis of anonymised notes, industry orientation and slide variants. Client-identifiable material stays off consumer accounts because of NDAs, volunteered statistics get real sources or get cut, and the analysis itself remains yours to test and own.

    Is it safe to put client information into ChatGPT?

    Not on a consumer account, where inputs can be used for training. That sits squarely against NDA obligations and, in diligence work, against price-sensitive information rules. Anonymise aggressively or use a firm-sanctioned enterprise tool, and where the client's own data rules are stricter, theirs win.

    Can ChatGPT build consulting frameworks and decks?

    It builds the scaffolding well. Storylines, framework skeletons, slide-by-slide outlines and connective prose all arrive fast and convert blank-page time into sharpening time. The client-specific substance and the recommendation are what the fee buys, and those go in during your edit rather than its draft.

    Will clients notice if a deliverable was written by AI?

    Increasingly, yes. Generic frameworks and committee-voiced prose have a recognisable flavour, and a client who detects it starts questioning the fee. The fix is using AI for structure and volume while the analysis, the specifics and the voice stay unmistakably yours.

    Can I trust ChatGPT's market statistics?

    No. It volunteers precise-sounding figures with no source behind them, and an invented number in a client deliverable is among the most damaging errors available. Every statistic gets traced to a real citation before it appears anywhere, or it gets cut.

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