Author: Taylor Warfield, Former Bain Manager and interviewer.

Last Updated: June 10, 2026

 

The BCG AI interview process includes three AI powered assessments that most candidates complete before ever meeting a human interviewer: the Pymetrics test, the one way video interview, and the Casey chatbot interview. This article explains what each assessment tests, how your performance is scored, and the exact steps to prepare for all three.

 

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Key Takeaways

 

BCG uses three AI powered assessments to screen candidates before live interviews: the Pymetrics behavioral test, the one way video interview, and the Casey chatbot case interview.

 

• BCG hires roughly 1% of applicants, and AI assessments filter out most candidates before any live interview

 

• The Pymetrics test uses 12 short games to measure 91 cognitive, social, and behavioral traits in about 25 to 30 minutes

 

• The one way video interview asks 2 to 4 recorded questions with 1 to 3 minutes per answer and no re-recording allowed

 

• The Casey chatbot interview runs a business case through chat and ends with a 60 second video recommendation

 

• AI gathers data on candidates, but human recruiters and consultants make every hiring decision

 

• BCG permits AI for interview preparation but expects assessment answers in your own voice

 

What Is the BCG AI Interview Process?

 

The BCG AI interview process is the set of AI powered assessments BCG uses to screen candidates in the early stages of recruiting. It includes the Pymetrics behavioral test, the one way video interview, and the Casey chatbot case interview. These assessments sit between your application and your live interviews in the broader BCG hiring process.

 

Not every candidate completes all three. The exact mix depends on your office, role, and recruiting cycle, but most consultant and associate applicants face at least one AI assessment before speaking to a human.

 

BCG is not unusual here. Nearly every major firm now uses some form of consulting pre-screening test, but BCG has pushed automation further than most of its peers.

 

Here is how the three assessments compare at a glance.

 

AI assessment	Format	Time	What it tests
Pymetrics test	12 behavioral games	25 to 30 minutes	Cognitive, social, and behavioral traits
One way video interview	2 to 4 recorded video answers	About 45 minutes	Communication, motivation, and fit
Casey chatbot interview	Chatbot led business case	25 to 45 minutes	Structuring, math, judgment, and synthesis

 

Having coached hundreds of candidates through these assessments, I think of them as three gates. Each gate measures a different dimension: Pymetrics measures how you behave, the video interview measures how you communicate, and Casey measures how you think.

 

Treat each gate as a separate test with its own preparation plan. Candidates who prepare only for live case interviews routinely fail the gates and never get the chance to show what they can do in person.

 

Why Does BCG Use AI in Its Hiring Process?

 

BCG uses AI in its hiring process to screen a massive applicant pool quickly, consistently, and with more data than a resume provides. The firm receives hundreds of thousands of applications each year and extends offers to only a tiny fraction of them.

 

There are four reasons this matters to you as a candidate.

 

• Scale: the BCG acceptance rate sits around 1%, and AI lets recruiters narrow the field without thousands of extra phone screens

 

• Consistency: every candidate gets the same questions, the same timing, and the same scoring benchmark, which reduces interviewer to interviewer variation

 

• Data beyond the resume: Pymetrics captures traits like risk tolerance and attention that GPAs and internships never reveal

 

• Flexibility: you complete each assessment on your own schedule within a 48 hour to multi-day deadline window

 

The practical implication is simple. Your first impression at BCG is now made to an algorithm, so you need to perform under timed, recorded, no-redo conditions long before you shake anyone's hand.

 

What Is the BCG Pymetrics Test?

 

The BCG Pymetrics test is a set of 12 game based exercises that measure 91 cognitive, social, and behavioral traits. Each game takes 2 to 3 minutes, the full test runs about 25 to 30 minutes, and you typically have 48 hours to complete it after receiving your invitation.

 

BCG built the test in partnership with Pymetrics, a behavioral science company now owned by Harver. The games look simple on the surface: pumping balloons for money, sorting cards, splitting hypothetical cash with a partner.

 

Under the hood, an algorithm tracks how you decide, not just what you decide. It records your speed, your hesitation, your risk patterns, and your consistency, then compares your profile against benchmark data from successful BCG consultants.

 

The test is also computer adaptive. The games adjust to your behavior as you play, so your version may differ from another candidate's version even for the same role.

 

How is the Pymetrics test scored?

 

There are no right or wrong answers, but there are patterns BCG's benchmark favors. The AI evaluates traits such as attention, planning, effort, and decision making under uncertainty, then ranks you relative to other candidates.

 

The biggest mistake candidates make is trying to game the test by playing a personality they think BCG wants. The algorithm measures consistency across 12 games, and forced behavior produces contradictory signals that hurt your profile.

 

What Is the BCG One Way Video Interview?

 

The BCG one way interview is a recorded video interview where you answer 2 to 4 preset questions on camera with no live interviewer. Each answer has a time limit of 1 to 3 minutes, you cannot re-record once you start answering, and the full process takes about 45 minutes including setup and tutorials.

 

BCG hosts the interview on the Spark Hire platform, and every applicant in a given cycle answers the same questions. You can pause between questions and return later, but your submission must be complete before the stated deadline.

 

BCG's official video interview FAQ recommends starting at least 5 hours before your deadline in case of technical issues. Treat that as a hard rule, because an incomplete submission makes your entire application incomplete.

 

The prompts are not case questions. Expect motivational and experience questions like "Why consulting?", "Tell me about a time you led a team through a challenge", and "What goal are you currently pursuing?" These mirror the standard BCG behavioral questions you will face again in live rounds.

 

Here is the part most candidates get wrong: the video is reviewed by human recruiters, not scored by AI. BCG states it will not make any interview or hiring decision based solely on your video, but a flat, rambling recording still costs you the benefit of the doubt at the resume review stage.

 

The questions in this round are pure fit questions. My fit interview course shows you how to answer 98% of them with a small set of flexible stories you can prepare in a few hours.

 

What Is the BCG Casey Chatbot Interview?

 

The BCG Casey chatbot interview is a digital case interview where a chatbot named Casey guides you through business cases and scores your structuring, math, and judgment. The current format includes up to 3 short cases with 8 to 10 questions each, and each case ends with a 60 second recorded video recommendation.

 

Casey replaced the old BCG Potential Test, and BCG officially calls the assessment the BCG online case. Think of it as a real case interview conducted over chat instead of across a desk.

 

One rule defines the entire experience: you cannot go back. Once you submit an answer, the chatbot moves on, so a botched calculation stays botched and you need to recover on the next question instead of dwelling.

 

What questions does Casey ask?

 

Casey asks the same question types a human interviewer would, compressed into a chat window. You will see a mix of multiple choice and free text responses across five categories.

 

• Framing: how would you structure the client's problem into 3 to 4 logical areas

 

• Quantitative analysis: profitability math, break-even calculations, and market sizing under tight time limits

 

• Exhibit interpretation: reading a chart or table and pulling out the one insight that matters

 

• Brainstorming: generating 4 to 6 ideas for a question like "How could the client grow revenue?"

 

• Synthesis: a 60 second video recommendation that opens with your answer and supports it with 2 to 3 reasons

 

Strong framing answers draw on the same case interview frameworks you would use live, adapted to the specific client problem rather than recited from memory.

 

How is the Casey chatbot scored?

 

Your written answers are evaluated against a standardized rubric covering structure, accuracy, and business judgment, and your video synthesis is reviewed for clarity and confidence. Math questions are scored on the answer, while free text questions reward organized, labeled responses over long paragraphs.

 

Casey tests the same skills as the live BCG case interview, just compressed and timed. That is good news, because every hour of case preparation pays off twice, once with the chatbot and once with the humans.

 

If you have not started preparing cases yet, my case interview course teaches you everything Casey and live interviewers test in as little as 7 days.

 

How hard is the Casey chatbot interview?

 

Candidates consistently rate Casey as one of the hardest screening tests in consulting, and the difficulty is almost entirely time pressure. You have minutes per question, no interviewer to nudge you, and no ability to revise.

 

The good news is that the content itself is standard case material. Candidates who can do clean mental math and structure problems in under 90 seconds report finishing comfortably.

 

Keep in mind that some offices use a different screen entirely. The BCG Consulting Career Assessment, a timed aptitude test with GMAT style questions, sometimes appears in place of or alongside Casey.

 

Does BCG Use AI to Make Hiring Decisions?

 

No. BCG uses AI to collect data and screen candidates at scale, but human recruiters and consultants make every interview and hiring decision. BCG states explicitly that no single assessment, AI scored or otherwise, decides your outcome on its own.

 

Once you clear the AI gates, the process becomes fully human. The BCG first round interview consists of two 45 minute interviews with consultants, each combining a 30 minute case with 10 to 15 minutes of behavioral questions.

 

Pass those and you reach the BCG final round interview, which includes 2 to 3 conversations with partners and managing directors. Some offices add a written case at this stage, a format no other top firm uses.

 

BCG is not alone in automating its early funnel. The McKinsey AI interview process performs the same filtering job through the Solve assessment, a gamified problem solving test, so MBB candidates should expect AI screens at every firm they target.

 

Can You Use AI to Prepare for BCG Interviews?

 

Yes. BCG explicitly allows candidates to use AI for interview preparation, and the firm's talent acquisition leadership has stated on BCG's careers blog that AI should support your preparation without replacing your personal insights, voice, or experience. The line BCG draws is between using AI to practice and using AI to perform.

 

On the practice side, AI is genuinely useful. The best AI tools for case interview practice can run mock cases on demand, drill your math, and score your structure at midnight when no practice partner is available.

 

On the performance side, the rule is absolute: never use AI to generate answers during Casey, the video interview, or any live round. Recruiters who read thousands of responses spot generic AI written answers in seconds, and authenticity is one of the explicit traits BCG screens for.

 

AI feedback also has a ceiling. If you want an experienced human to pinpoint exactly why your case performance stalls, my case interview coaching gives you 1-on-1 sessions with detailed, personalized feedback.

 

How Do You Prepare for the BCG AI Interview Process?

 

Preparing for the BCG AI interview process means training for timed, recorded, no-redo conditions across all three assessments. The six tips below come from coaching hundreds of candidates through AI screens at top firms.

 

Tip #1: Practice the chatbot format before test day

 

Casey punishes unfamiliarity more than weak content. Complete any official practice case BCG sends with your invitation, then run 3 to 5 additional timed cases in a chat style format.

 

Your goal is to make the format boring. When the interface feels routine, all of your attention goes to the case itself.

 

Tip #2: Script the first 15 seconds of every video answer

 

In recorded answers, the first 15 seconds carry disproportionate weight because reviewers form an impression almost immediately. Open with a direct answer to the question, then support it.

 

Write out and rehearse openers for the 5 most likely prompts. The middle of your answer can flex, but the opening should be automatic.

 

Tip #3: Drill mental math daily for two weeks

 

Casey's quantitative questions are not conceptually hard, but the clock makes sloppy arithmetic fatal. Spend 15 minutes a day on percentages, break-even math, and large number multiplication for the two weeks before your test.

 

Aim to finish calculations 20% faster than feels comfortable. The buffer absorbs the stress penalty of test day.

 

Tip #4: Play the Pymetrics games naturally

 

Understand what each game measures, then play as yourself. The algorithm compares your behavior across 12 games, and an acted personality creates inconsistencies that read as red flags.

 

The one exception is focus. Take the test alone, rested, and free of distractions, because attention is one of the 91 traits being measured.

 

Tip #5: Test your tech and room 24 hours early

 

Check your camera, microphone, lighting, internet connection, and laptop battery a full day before recording. Then start your actual submission at least 5 hours before the deadline, per BCG's own guidance.

 

A surprising number of strong candidates lose their shot to a dead battery or a missed upload window. This is the cheapest failure to prevent.

 

Tip #6: Lead every Casey answer with your conclusion

 

Answer first, explain second. In free text responses, state your recommendation or insight in the opening line, then add 2 to 3 labeled supporting points.

 

This structure mirrors how consultants communicate with clients, and it is exactly what the scoring rubric rewards. It also protects you when time runs out, because your core answer is already on the page.

 

Frequently Asked Questions

 

Does BCG use AI in its interview process?

 

Yes. BCG uses three AI powered assessments to screen candidates before live interviews: the Pymetrics behavioral test, the one way video interview, and the Casey chatbot case interview. AI collects and scores data at these stages, but human recruiters and consultants make every hiring decision.

 

Is the BCG Casey chatbot interview hard?

 

Yes, candidates consistently rate Casey as one of the hardest screening assessments in consulting. The difficulty comes from time pressure rather than content. You face up to 3 short cases with 8 to 10 questions each, you cannot go back to a previous question, and each case ends with a 60 second video recommendation.

 

Does AI score the BCG one way video interview?

 

No. Human recruiters review your recorded answers and evaluate your communication, motivation, and fit. BCG states in its official video interview FAQ that it will not make any interview or hiring decision based solely on your video.

 

Can you use ChatGPT to prepare for BCG interviews?

 

Yes, BCG explicitly allows candidates to use AI tools for interview preparation. The firm's talent acquisition team has stated that AI should support your preparation but should not replace your personal insights, voice, or experience. Never use AI to generate answers during a live assessment, since recruiters can spot generic AI written responses quickly.

 

Do all BCG offices use the same AI assessments?

 

No. The mix of assessments varies by office, role, and recruiting cycle. Some offices use all three AI assessments, others use only Casey or only the one way video interview, and some swap in the BCG Consulting Career Assessment, a timed aptitude test. Your invitation email is the definitive source for what you will face.

 

What happens after you pass the BCG AI assessments?

 

You advance to live interviews conducted entirely by humans. The first round consists of two 45 minute interviews with consultants, each combining a case with behavioral questions. The final round includes 2 to 3 interviews with partners and managing directors, and some offices add a written case.

 

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