BCG Online Case (2026): Casey Chatbot Interview Guide

Key Insights:

The BCG Online Case (Casey Chatbot Interview) is a digital case interview that combines a chatbot-led business case with a standardized BCG Online Assessment, testing both problem-solving and reasoning under time pressure.
The BCG Online Case typically includes 3 chatbot-led cases with 8-10 questions each, plus a 1-minute video recommendation per case, along with GMAT-style questions in the BCG Online Assessment.
Success in the BCG Online Case depends less on perfect calculations and more on structured thinking, fast decision-making, and clear communication in a time-constrained digital environment.

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The BCG Online Case (also known as the Casey Chatbot Interview) has become a core part of Boston Consulting Group’s recruiting process. For many candidates, it is now the first major screening step after submitting an application.

At a high level, the BCG Online Case combines two components:

A BCG Online Assessment (GMAT-style reasoning questions)
A Casey chatbot interview, where candidates complete multiple structured cases and record short video recommendations

The difficulty of the BCG Online Case is not just about content - it’s about familiarity with the format, time pressure, and ability to perform in a digital environment. Candidates who prepare only for traditional case interviews often struggle with the pacing and structure of the chatbot format.

So, what exactly is the BCG Online Case, and how should you prepare? Let’s break it down.

What Is the BCG Online Case?

The BCG Online Case is a digital case interview conducted through an interactive chatbot (commonly referred to as the Casey Chatbot Interview). It is designed to evaluate how candidates think through business problems in a structured, time-constrained environment.

Instead of speaking with a live interviewer, you:

Read prompts and exhibits on-screen
Answer multiple-choice, short-answer, and quantitative questions
Progress through a structured case flow led by the chatbot

In addition to the case itself, candidates typically complete a BCG Online Assessment section, which includes:

Quantitative reasoning
Logical reasoning
Data interpretation

Together, these components simulate both:

Standardized testing (speed + accuracy)
Real consulting problem-solving (structure + judgment)

BCG Online Case Format

The BCG Online Case is structured to mirror a traditional interviewer-led case - but with key differences driven by the digital format.

Core structure:

3 chatbot-led cases
Each case includes:
- ~8-10 questions
- A mix of qualitative and quantitative prompts
- A 1-minute video recommendation at the end

Timing:

~30-35 minutes per case
Total experience can exceed 90 minutes

Key differences vs. traditional case interviews:

No live clarification
- You cannot freely ask questions
- Limited interaction with the chatbot
Predefined structure
- The case progresses step-by-step
- Less flexibility than interviewee-led cases
Integrated analytics and communication
- You must:
  - Solve problems
  - Interpret data
  - Communicate clearly via video

What this means for candidates:

Success depends heavily on:

Building a clear initial structure quickly
Interpreting exhibits without guidance
Communicating conclusions concisely

Check out the BCG Online Case example below to see how this format works in practice.

Will I Face the BCG Online Case / BCG Chatbot Case?

The BCG Online Case is now widely used across geographies and roles. Candidates across undergraduate, MBA, PhD, and experienced hire pipelines have all reported encountering the Casey Chatbot Interview early in the process.

While rollout may vary slightly by office, the BCG Online Case is increasingly becoming a standard first-round screening step.

BCG Online Case Questions

The BCG Online Case draws heavily from traditional case interviews, but introduces more variety in format and tighter time constraints.

You can expect a mix of:

Multiple-choice questions
Short written responses
Quantitative calculations
Data interpretation (charts, tables, exhibits)
Logical reasoning questions
Video-recorded recommendations

Compared to traditional cases, the BCG Online Case:

Requires faster decision-making
Offers less opportunity to clarify assumptions
Tests structured thinking in a constrained environment

Importantly, the chatbot cases are interviewer-led, meaning:

You are guided through the case step-by-step
You respond to specific prompts rather than driving the structure entirely

Examples of Case Questions

After reviewing a case prompt and supporting exhibits, you may encounter questions like:

"What is the optimal price per unit to maximize profitability?"
"Which of the following strategies best addresses the client’s objective?"
"Based on the data provided, which market should the company prioritize?"

These questions test:

Quantitative reasoning
Business judgment
Ability to interpret incomplete information

A BCG Online Case example will typically include multiple exhibits and require you to synthesize information quickly. See BCG's overview and sample questions here.

BCG Online Assessment Similarity to GMAT

The BCG Online Assessment portion of the Online Case includes questions that resemble GMAT-style problems.

You can expect:

Quantitative reasoning
Logical reasoning
Data interpretation

However, there are key differences:

Questions are more business-contextualized
Time pressure is often more intense
You are expected to make decisions, not just calculations

You do not need full GMAT-level preparation, but familiarity with the following will be helpful:

Percentages
Ratios
Basic algebra
Logical reasoning

How to Prepare for the BCG Online Case

Preparation for the BCG Online Case should focus on both case skills and test-taking strategy.

1. Understand the format

Know how the Casey Chatbot Interview works:

Structured flow
Limited interaction
Video component

2. Practice under time pressure

Many candidates struggle not with content, but with speed and decision-making. Train yourself to:

Move quickly
Avoid over-analyzing
Make defensible decisions

3. Strengthen core quant skills

Focus on:

Percentages
Break-even analysis
Market sizing
Basic arithmetic

4. Practice interviewer-led cases

The BCG Online Case is not interviewee-led. You must be comfortable responding to structured prompts and answering specific questions.

5. Develop concise communication

The 1-minute video recommendation is critical. You should be able to:

Clearly state your recommendation
Support it with 2-3 key points
Communicate confidently and succinctly

6. Simulate the real environment

Practice:

Sitting at a computer
Working through timed cases
Recording yourself

This is one of the biggest differentiators in performance.

Our Black Belt clients get access to 28 realistic BCG-style chatbot cases, along with coaching from former BCG consultants. There is no better way to prepare than practicing in an environment that mirrors the real test.

An exhibit in a Management Consulted BCG-style chatbot case. 28 practice chatbot cases are available through the Black Belt prep program.

BCG Online Case FAQs

1. What is the BCG Online Case?

The BCG Online Case (also called the Casey Chatbot Interview) is a digital case interview used by Boston Consulting Group to assess candidates’ problem-solving, analytical thinking, and communication skills through chatbot-led cases and a standardized assessment.

2. How does the Casey Chatbot Interview work?

In the Casey Chatbot Interview, candidates complete 2-3 structured business cases through a chatbot interface, answering a mix of multiple-choice, quantitative, and short-answer questions, followed by a 1-minute video recommendation for each case.

3. How long is the BCG Online Case?

The BCG Online Case typically takes 90-120 minutes to complete, including multiple chatbot-led cases and a BCG Online Assessment section with GMAT-style reasoning questions.

4. Is the BCG Online Case difficult?

Yes, the BCG Online Case is considered difficult due to its time pressure, lack of live interaction, and requirement to solve problems and communicate clearly in a structured digital format. Success depends on speed, structure, and decision-making under uncertainty.

5. What types of questions are asked in the BCG Online Case?

The BCG Online Case includes a mix of question types, including data interpretation, business judgment, quantitative problem-solving, logical reasoning, and short written responses, as well as a recorded video recommendation summarizing your analysis.

6. How do you prepare for the BCG Online Case?

To prepare for the BCG Online Case, candidates should practice interviewer-led cases, improve speed on quantitative problems, simulate chatbot-style environments, and refine concise communication for the video recommendation.

Conclusion

The BCG Online Case (Casey Chatbot Interview) is a critical step in the recruiting process and represents a shift toward digital, standardized evaluation.

While the format may feel unfamiliar, the underlying skills being tested are the same ones BCG has always valued:

Structured thinking
Analytical rigor
Clear communication
Decision-making under pressure

Candidates who understand the format, practice under realistic conditions, and refine their approach will have a significant advantage.

In a competitive recruiting landscape, mastering the BCG Online Case is not just about solving problems; it is about performing effectively in a fast-paced, digital consulting environment.

BCG Online Case (2026)