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Has anyone tried ai case consulting practice tools yet?

I have been practicing with the 2021 MBB Peter K book and CasePrepared, but I'm wondering what the quality of most of the AI tools are out there for interviewing practice. 

I know nothing beats a real person and etc but I can't have access to a knowledgeable case partner all the time so AI has been helpful. I tried mbb ai but I didn't like it / didn't function well so I'm wondering what alternatives are out there and if they're useful.

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Top answer
Phenyo
Coach
edited on Jun 25, 2025
Ex-McKinsey Consultant | Nova Top Talent - Madrid | McKinsey HiPo recruit | McKinsey Digital & Analytics

Tools x Solid casing foundations = Increased productivity

Tools x average case foundation = Counter productive efforts


Similar to what you see with GenAI adoption in the workplace, such tools benefit the experts a lot more than they do beginners. They are likely more helpful to coaches than they would for candidates, because coaches know exactly what to look for and when the outputs/simulations are impractical. So the tools could be a supplement, but never the core of your preparation. Coaches and peers are your best two resources.

Anonymous A
on Jun 25, 2025
Okay that's fair. So CasePrepared is helpful when you already have a solid base. Kind of like coding LLMs when you already know how to code?
on Jun 25, 2025
#1 Rated McKinsey Coach | Top MBB Coach | Verifiable success rates

Hi there, 

AI has been making good progress in terms of giving feedback. And I would recommend you use it as an extra layer to your individual practice. 

The issue with it is that it's confident even when it's wrong, which does happen rather often. So you might start picking up things which are not helpful for you and taking you in the wrong direction.

And on top of this, as you said, the human, expert element cannot yet be substituted by AI. Perhaps in the future.

Best,
Cristian

Mihir
Coach
edited on Jun 25, 2025
McKinsey Associate Partner and interviewer | Bulletproof MBB prep

I agree with the comments above.

AI tools are not yet reliable enough to form the core of your case practice.

They are, however, a helpful supplement to your practice with coaches and peers.

Alberto
Coach
edited on Jul 02, 2025
Ex-McKinsey AP | Professional MBB Coach | +13yrs experience | +2,000 real interviews | +150 offers

Hi there,

Forget the case books and tools — seriously. They’re not the best place to start. If you want to build real skill, begin with mastering the five fundamentals:

  • Structuring: breaking down any problem into a clear, logical framework
  • Math + Estimations: solving calculations quickly and logically under pressure
  • Chart Interpretation: extracting insights and “so whats” from data and graphs
  • Brainstorming: generating ideas in a structured, MECE way
  • Communication: speaking clearly, confidently, and logically throughout

Once these are solid, then move on to practicing full cases with others or using AI tools to boost your speed and quality. But only once the fundamentals are there — otherwise you’ll just reinforce bad habits.

Best

Alberto

Alessa
Coach
on Jun 26, 2025
xMcKinsey & Company | xBCG | xRB | >400 coachings | feel free to schedule an intro call for free

hey there!

yes, a few AI case tools like ChatGPT-based partners or CaseNexus, are getting better for solo practice—great for brushing up math, brainstorming, or structuring. they’re fast, available anytime, and helpful for repetition. but biggest downside vs. real partners (like normal people/coaches) is they can’t really test your communication, pressure handling, or follow-up questions in a human way. Also, feedback from AI can be too generic or forgiving. So they’re a good supplement, but not a full replacement. use them in between real partner practice!

best, Alessa 😊

on Jun 30, 2025
Ex-BCG Principal | 8+ years consulting experience in SEA | BCG top interviewer & top performer

Haven't yet found one that is really that good. The day that AI becomes good enough to replace a reasoning human in person, thats the day consulting itself gets disrupted (with significant implications for applicants).. and by extension interviewing prep. 

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