YC Interview — Can You Bring Slides or Is It Conversational Only

The conversational format is deliberate and has been the standard since YC's earliest batches. It serves three specific purposes that a slide-based format cannot:

Purpose 1: It tests how founders think, not how they present. A slide deck is a prepared artifact. It can be polished by advisors, refined over weeks, and optimized to present the company in its best light. A conversation cannot be pre-constructed in the same way. When a partner asks a follow-up question that was not on any question list, the founder has to think — and how they think under pressure is exactly what partners are evaluating.

Purpose 2: It allows partners to control the information gathering. In a slide presentation, the founder controls the sequence of information. In a conversation, partners control it. If partners want to spend 7 of the 10 minutes on customer retention and 0 minutes on the team slide, they can. This efficiency means partners get the specific information they care most about from every interview.

Purpose 3: It tests preparation quality differently. A founder who needs slides to remember their own metrics, their competitive positioning, or their growth story has not internalized that information. A founder who can answer every question immediately, specifically, and without reference material has. The no-slides format filters for the second type.

While you do not present a deck, there are specific things you should have prepared and accessible during the interview:

A metrics sheet (off-camera, not presented) A single sheet of paper or an open document with your key metrics — MRR, customer count, growth rate, retention rates, CAC, burn rate, runway. This is a safety net, not a script. If you blank on a specific number under pressure, a brief glance at your metrics sheet is far better than giving a wrong number or admitting you don't know. Keep it visible but off-camera. Reference it at most once or twice. Do not read from it throughout the interview.

A live product or demo ready to show Partners sometimes ask to see the product in a YC interview. "Can you show me the product?" is a direct question that requires a live demo, not a slide. Have your product open and logged in to a real account with real data before the interview starts. If your product is a mobile app, have it open on a phone visible to the camera. If it is a web product, have the tab open and ready to share screen instantly if asked.

Your application on screen for reference The application is what partners have read. Having it open during the interview lets you refer to specific numbers or statements if a partner quotes something from it. You will not read from it — but having it accessible means you are not caught off guard if a partner says "your application mentions X."

In a conversational format, the 10 minutes typically breaks down like this:

0:00-1:00 — Product description "Tell me what you're building." One sentence from you. Partners confirm they understand the product. Move on.

1:00-5:00 — Traction deep dive Rapid-fire questions about customers, revenue, retention, growth rate, acquisition. This section is the core of the interview. Partners ask specific questions, follow up on vague answers, and probe the mechanics of your growth. No slides could cover this section adequately — it is interactive by design.

5:00-7:00 — Insight and competition "What do you understand about this market that others don't?" and "Who are your competitors?" Answers here reveal depth of market knowledge. A slide would limit the answer; a conversation surfaces the real depth.

7:00-9:00 — Team and strategy "Why are you the right people?" and "What would you do with the funding?" These are judgment questions that benefit from the directness of conversation rather than the structure of a slide.

9:00-10:00 — Hard question and close One of the questions founders least want to answer. "What's most likely to kill this company?" No slide covers this — it requires honest, real-time thinking.

The no-slides format shifts the entire burden of preparation from presentation design to knowledge internalization. Everything a slide deck would carry — your metrics, your competitive positioning, your growth story — must live in your head and your cofounder's head, accessible on demand, in precise form.

This means your preparation must produce:

Complete metric memorization. Every number on your metrics sheet should be answerable without looking at it. The sheet is backup, not primary. Know MRR, customer count, growth rates, retention, CAC, burn, runway — exact numbers, not approximations.

Natural narrative flow. Without slides to structure the story, you need to be able to describe your company, your market, your insight, your competitive position, and your team clearly and specifically in plain spoken language. Practice this in live conversation, not in writing.

Instant access to specific details. Partners sometimes ask hyper-specific questions: "What did your second customer say when they first used the product?" or "How long did it take to acquire your tenth customer after your ninth?" These questions cannot be anticipated and answered with slides — they require actual memory of your company's history. If you know your company deeply, you can answer them. If you have been focused on slide design, you cannot.

Composure without a crutch. Slides give founders a visual anchor and a narrative to follow. Without them, the interview can feel unmoored for founders who have not prepared for the conversational format. The antidote is mock interviews — live conversational practice that builds the same composure that a slide deck's structure would otherwise provide.

Showing the product in a YC interview is not presented via slides — it is a live screenshare of the actual running product. If a partner asks "can you show me the product?", the correct response is to share your screen and show a real session with real user data.

Showing a slide with screenshots of your product is significantly less compelling than showing the live product. Screenshots signal a product that may not work as described. A live product with real users and real data signals the opposite.

Prepare for a product demo request even if you do not plan to offer one. Have the product open, logged in, and ready. Know which workflow you would show in 90 seconds — the single most important thing your product does for your user, end to end, with real data visible.