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Startup & Fundraising Guides

Practical guides on fundraising, business plans, and pitch decks — translated from OpenSeed's Korean guide library. This English demo is a work in progress, with more guides added over time.

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Technology & Research

Same Business Plan, Different AI Models — How Often Does It Actually Catch the Number Errors?

The first doubt anyone has about handing a business plan review to AI is this: what if today's result doesn't match tomorrow's? OpenSeed decided to answer that…

2026.07.14 · 9 min read OpenSeed Product Guide

Why OpenSeed Doesn't Accept IR Decks

When you submit a business plan to OpenSeed, you can't upload a PDF or PowerPoint deck. We only accept pasted text, Word (.docx), or plain text (.txt). If you w…

2026.07.12 · 5 min read Startup Guide

Business Plans With No Unit Economics at All — Why Reviewers Dock Points Immediately

One pattern keeps showing up across the business plans OpenSeed has analyzed. The business is subscription- or platform-based, and yet there isn't a single line…

2026.07.12 · 8 min read Startup Guide

Business Plan 'Competitive Advantage' — Why an Unsupported Comparison Table Costs You Points in Review

Founders pour effort into the competitive-advantage section. They build a table, list out competitor names, and fill in checkmarks only next to their own compan…

2026.07.11 · 8 min read Fundraising

Why Seed-Stage VCs Weigh 'Team Risk' So Heavily — Persuasion Strategies for Solo Founders, Non-Technical CEOs, and Teams With No Domain Experience

Seed-stage VCs look at the team before they look at the product. A product can pivot; a team can't be swapped out overnight. The problem is that too many founde…

2026.07.10 · 8 min read Startup Guide

Business Plan Mistake Log: When You Have a 'Problem Definition' But No Customer Validation

This series looks at one recurring point-losing pattern per article, drawn from patterns we keep observing across OpenSeed's AI analyses. Today's mistake: a bus…

2026.07.09 · 7 min read Startup Guide

The Business Plan Mistake Log Series — 4 Point-Losing Patterns AI Review Keeps Finding

Plenty of founders get a rejection notice, spend a long time wondering 'where did it go wrong,' and never find out. Reviewers don't hand back a detailed list of…

2026.07.09 · 8 min read Startup Guide

3 Patterns Where the 'Problem → Solution' Logic Breaks Down in Korean Startup Grant Business Plans

On page one, reviewers check exactly one thing: does this team actually understand the structure of the problem? If the problem and the solution aren't logicall…

2026.07.09 · 8 min read Technology & Research

A Practical Guide to Impact Measurement (SROI and Logic Models) for Social Startups Doing It for the First Time

Feeling your impact and demonstrating it are two different things. Bonus points on a government grant, a meeting with an impact investor, social enterprise cert…

2026.07.06 · 8 min read OpenSeed Product Guide

When Repeated OpenSeed Analysis Stops Moving the Needle: Diagnosing the Plateau and Breaking Through It

Round 2. Round 3. Round 4. You keep revising, but the score stays put. This is what we call a plateau. It can mean you've already fixed everything that was easy…

2026.07.03 · 8 min read Startup Guide

How Non-Technical Founders Choose No-Code and Low-Code Tools to Build an MVP Without a CTO

You have the idea. You can see the market. What you don't have is a developer. Bring on a CTO, and you're giving up equity. Outsource it, and quotes run well pa…

2026.07.01 · 8 min read Fundraising

Due Diligence and Data Room Prep — What VCs Demand After the Term Sheet

Once the term sheet is signed, many founders feel like the race is over. It isn't — the term sheet is closer to the starting line, where real verification begin…

2026.06.30 · 9 min read Fundraising

How to Use Follow-Up Emails After an Investor Pass to Stay in the Relationship and Land the Next Round

The rejection email arrives. Most founders do one of two things: go quiet, or write back asking the investor to reconsider. Both are wrong. A pass isn't the end…

2026.06.30 · 8 min read Fundraising

They Were Speaking Different Languages — Why Great Technology Fails When It Doesn't Translate

In June 2026, a company building some of the world's most advanced AI pulled its own newest model from the market with its own hands. It wasn't a shortage of te…

2026.06.29 · 8 min read OpenSeed Product Guide

How to Turn OpenSeed's Multi-Round Analysis Data Into Evidence for Your IR Prep

Investors care less about how polished this deck is right now than about how fast a founder revises once they've been challenged. Run two or more rounds of anal…

2026.06.29 · 8 min read Fundraising

The Shareholder Consent and Board Resolution Documents Founders Must Prepare Before Series A

By the time you've received a Series A term sheet, it's already too late to start hunting for documents. Investor due diligence teams typically request a comple…

2026.06.28 · 8 min read Startup Guide

Validating Startup Ideas — Confirming Demand with Customer Interviews and an MVP

If you have an idea but aren't sure real demand exists, there's one answer: validate before you build. Idea validation isn't about finishing a product — it's ab…

2026.06.25 · 8 min read Startup Guide

Lean Canvas / Business Model Design — Structuring Your Business Into One Testable Page

The Lean Canvas is a tool for laying your business idea out, on a single page, as a set of testable hypotheses. You fill in 9 boxes, but the order is what matte…

2026.06.25 · 8 min read Startup Guide

Early Customer Acquisition — GTM Channels and Growth Strategy

At the early stage, the answer to customer acquisition isn't “spin up a lot of channels fast” — it's “find the one channel that works.” In the beginning, it's a…

2026.06.25 · 8 min read Technology & Research

Prior Art Search Before Filing a Patent — A Founder's 5-Step DIY Method

Patent filing costs typically exceed ₩1M. Get a rejection after filing, and both the time and the money are gone. More than half of all rejections come down to…

2026.06.22 · 8 min read OpenSeed Product Guide

Turning OpenSeed's Per-Category Diagnosis Into a Business Plan Revision Order

Once you complete an OpenSeed review, you get a per-category diagnostic report. Scores and comments for problem definition, market analysis, execution capabilit…

2026.06.21 · 8 min read Technology & Research

How to Explain TRL to Reviewers in a Deep Tech Business Plan

When a deep tech founding team with genuinely strong technology gets rejected in review, the reason is usually not the technology itself — it's the failure to e…

2026.06.20 · 8 min read Startup Guide

How to Calculate Runway, Burn Rate, and Default Alive

“What's your runway?” If you've ever hesitated when an investor asked that in a meeting, you know the concept but not the number. Runway, burn rate, and default…

2026.06.20 · 8 min read Startup Guide

Even When Your Business Plan Is Missing Information, AI Fills the Gaps Convincingly — It Won't Tell You What's Missing

When you hand an AI a business plan that still has a lot left undecided, something strange happens. Even with incomplete information, the AI fills in the blanks…

2026.06.18 · 6 min read Startup Guide

Why It Doesn't Help Even When AI Writes You a Perfect Business Plan — The Document Stays, the Understanding Doesn't

Ask AI to "just write me a business plan," and it hands you something surprisingly logical. Market, problem, solution, revenue — all flowing smoothly into each…

2026.06.18 · 6 min read Startup Guide

What Happens When You Ask GPT 'How's My Business Plan?' — It Reaches a Conclusion First, Then Attaches the Evidence

Once you finish a draft, it's tempting to ask GPT, "take a look at this, what do you think?" But can you trust that evaluation? After running this hundreds of t…

2026.06.18 · 6 min read Startup Guide

Why You Shouldn't Ask GPT to Write Your Business Plan for You — Writing Well and Passing Review Are Different Things

Ask GPT, Claude, or Gemini to "write me a business plan" and they'll do it shockingly well. Smooth sentences, a structure that sounds convincing. But trusting t…

2026.06.18 · 6 min read Startup Guide

Designing Co-Founder Vesting — A Practical Guide to Cliffs, Acceleration, and Clawbacks

A co-founder left after six months. Their equity stayed exactly where it was. The remaining founder has to keep running the company — while the person who left…

2026.06.18 · 8 min read Fundraising

Pre-Series A Convertible Bonds — 3 Key Terms Founders Must Negotiate

When a Pre-Series A investor says “we'll come in as a convertible bond,” founders often feel two things at once: relief that money is coming in, and anxiety abo…

2026.06.17 · 8 min read OpenSeed Product Guide

OpenSeed Avatar Selection Guide: The Best Combination for Government Grants, VC, and Accelerator Reviews

OpenSeed has 20 reviewer avatars. The first thing every new user gets stuck on is the same question: “Who should review my plan?” The right combination depends…

2026.06.16 · 8 min read Startup Guide

How to Get Feedback on Your Business Plan — Comparing 4 Paths by Cost, Speed, and Objectivity

You've finished your business plan, but now that it's time to submit, you're nervous. You can't tell on your own whether it's good enough to pass, or where it's…

2026.06.15 · 8 min read Startup Guide

How to Review Your Business Plan with AI — From ChatGPT to Dedicated Review AI

When you've finished a business plan and have no one objective to show it to, most founders reach for ChatGPT first. It's fast, free, and available around the c…

2026.06.15 · 11 min read Fundraising

LTV/CAC: How to Estimate Honestly When You Barely Have Data

When an investor asks about LTV/CAC, answering "we don't have data yet" ends the meeting right there. But asserting a confident "it's above 3:1" with no basis b…

2026.06.14 · 8 min read Fundraising

Reading a VC Term Sheet: Anti-Dilution, Liquidation Preference, and Board Composition, Explained for Founders

Signing a term sheet takes ten minutes. The clauses in it can take ten years to decide your company's governance and how much of it you actually end up owning.…

2026.06.12 · 8 min read Startup Guide

The AI Startup Moat — Four Defenses Beyond the GPT Wrapper

A product that's just a prompt and a UI bolted onto a general-purpose model API is easy to build. Which means it's just as easy to copy. Model performance and U…

2026.06.11 · 8 min read Startup Guide

When Should You Pivot — Five Signals and How to Act on Them

When traction has been flat for months, the same question keeps coming back: "Do I hold on, or change direction?" A pivot isn't a declaration of failure — it's…

2026.06.11 · 8 min read Startup Guide

How to Set Your Price — Early-Stage Pricing and Willingness to Pay (WTP)

Pricing is the decision early founders put off most often. Unsure of themselves, they either give it away free or throw out a number cheaper than the competitio…

2026.06.11 · 8 min read Startup Guide

What Should You Actually Measure — One North Star Metric Plus a Funnel Setup

Early founders usually fall into one of two traps: measuring nothing, or measuring only what looks good. Downloads and followers can climb while you have no ide…

2026.06.11 · 8 min read Startup Guide

Reviewers Aren't Looking for a 'Great Idea' — They're Looking for a Business That Works: A Pre-Submission Self-Check

Plenty of applicants believe "if the idea is original enough, I'll get in." But what reviewers are actually looking for isn't novelty — it's whether this works…

2026.06.11 · 8 min read Startup Guide

Nobody Is Going to Steal Your Idea

One of the most common fears for early founders is "if I show even a single line of my idea, someone's going to grab it." So they lead with an NDA, write their…

2026.06.11 · 8 min read Startup Guide

Filtering False Signals Out of Customer Interviews — Ask About Actions, Not Compliments

For founders anywhere between an idea and an early MVP, customer interviews are the cheapest and the most dangerous validation tool you have. Cheap, because any…

2026.06.10 · 8 min read Startup Guide

Do Things That Don't Scale — Building Early Traction from 0 to 100 Users, By Hand

Your MVP is out, but nobody's using it. The most common mistake at this point is switching on ads and bolting on automation. Before you hit 100 users, you need…

2026.06.10 · 8 min read Technology & Research

What Is an AI Agent Review? How Is It Different From Just Asking a Chatbot?

An AI agent review is an evaluation method where the system finds its own sources, uses evaluation tools, and has multiple reviewers challenge each other's conc…

2026.06.01 · 8 min read Startup Guide

Does Writing Your Business Plan With AI Hurt You in Reviews?

Writing a business plan with ChatGPT is now the default. And with that has come a new anxiety among founders — 'won't I lose points if it's obvious AI wrote thi…

2026.05.30 · 11 min read Fundraising

The Startup Investment Terms Glossary

Write an IR deck or a business plan and you'll run into a flood of investment terms you use without quite knowing what they mean. Pre/post-money, TAM/SAM/SOM, F…

2026.05.30 · 13 min read Startup Guide

Is a Failure-Free Startup Possible?

If you searched for 'failure-free startup,' you're probably either about to start one or carrying the scars of a past failure. Here's the honest answer: no star…

2026.05.30 · 10 min read OpenSeed Product Guide

The 30-Minute First Submission Workflow — From Self-Check to Your OpenSeed Analysis

For founders using OpenSeed for the first time, the place they most often get stuck isn't the 'AI analysis' itself — it's the step right before it. What file fo…

2026.05.28 · 7 min read OpenSeed Product Guide

Your OpenSeed Round 1 Report — Which of the 15 Reviewers' Comments to Fix First

After your OpenSeed Round 1 analysis, you'll typically end up with 50 to 80 comments from 15 reviewers. Try to address every single one from top to bottom, and…

2026.05.28 · 8 min read OpenSeed Product Guide

The Workflow for Clearing the Passing Bar in 3 Weeks — OpenSeed's Round 1 Through Round 4 Cycle

Most founders open OpenSeed for the first time with just 3 weeks left before their business plan deadline. They plan on one review and being done, but reaching…

2026.05.28 · 9 min read Fundraising

Seed IR × OpenSeed — Matching 15 AI Reviewers to the 6 Axes VCs Cut On in the First Meeting

A first meeting with a seed-round VC usually runs about 30 minutes. Within that window, the VC works through 6 axes in order — team, market, business model, tec…

2026.05.28 · 9 min read Startup Guide

Co-Founder Risk × OpenSeed — A Pre-Dispute Diagnostic Workflow

Co-founder disputes are one of the most common reasons startups die. But they don't erupt randomly — they start with structure: how equity is split, how roles a…

2026.05.28 · 8 min read Fundraising

What Kind of Company Does a VC Actually Back — the 4 Lenses Early-Stage Investors Use to Read a Company

VCs don't invest in every company. Of the hundreds of business plans an early-stage investor reviews in a year, only 1 to 2% actually turn into an investment. T…

2026.05.23 · 14 min read Startup Guide

How to Start a Startup — the 4 Pillars of Idea, Product, Team, and Execution

What a first-time founder needs is not the trappings of a startup, it is the fundamentals. A successful startup is determined by the product, not the sum, of fo…

2026.05.23 · 15 min read Startup Guide

C-Level Disputes — When They Most Often Erupt and How They End

C-level disputes — conflicts between co-founders and key executives — are one of the most common reasons startups die. But these disputes don't erupt randomly.…

2026.05.23 · 13 min read Startup Guide

The Startup Metrics Glossary — ARR, MRR, LTV, CAC, and Churn Explained

Investors and reviewers read your business through the same handful of acronyms. When you say ARR in a pitch, if it's unclear whether that means MRR times 12 or…

2026.05.18 · 13 min read Fundraising

When Should a Startup Founder Raise Their Own Salary — the Moral Hazard Line Investors Watch

The first thing an investor checks in the payroll line of a business plan is the founder's own salary. If a founder sets their pay above market average at a sta…

2026.05.17 · 10 min read Fundraising

Raise Overseas Capital Carefully — a Case That Shut Down After a Delaware Flip

Raising capital overseas is harder than raising it at home, and language and legal differences eat up more time. To raise from US investors, you typically need…

2026.05.17 · 11 min read Fundraising

Investors Struggle to Raise Money Too — the GP/LP Structure and the Real Cost of Venture Capital

Founders tend to see a VC as 'the side with the money,' but a VC has also had to raise that money from somewhere else. One investment-firm CEO has said that rai…

2026.05.17 · 11 min read Fundraising

FI vs. SI: The Startup That Gave Kakao 25% and Got Blocked from Competitor Deals for a Year

A financial investor (FI) and a strategic investor (SI) can look like the same capital on a term sheet, but their effect on a company's fate is completely diffe…

2026.05.14 · 11 min read Fundraising

Fundraising Takes 4-7 Months: A Reverse-Timeline Guide to When You Should Start

If you start fundraising with only six months of cash left, you're almost guaranteed to be too late. From first meeting to wired funds takes an average of 4-7 m…

2026.05.14 · 11 min read Fundraising

Without a Lead Investor, Your Syndicate Never Gets Moving

When multiple VCs are all reviewing a deal at once but the round still isn't moving, the missing piece is almost always a lead investor. If five different inves…

2026.05.14 · 11 min read Fundraising

Why You Shouldn't Ask an M&A Lawyer to Review Your Seed Term Sheet

Not all legal advice is created equal. M&A is a field built around protecting the buyer or seller in exit-stage transactions — acquisitions and mergers. A seed…

2026.05.14 · 11 min read Fundraising

Why 8 of Mashup Angels' 100+ Portfolio Companies Capture 80% of the Value

Seed VCs run on statistics. They review 100 deals, invest in 2 or 3, and 1 or 2 of those end up responsible for 80% of the fund's total IRR. Everything else sta…

2026.05.14 · 11 min read Fundraising

What Comes After Fundraising Is Harder — Saerom Technology's Fall From a ₩5T Market Cap to Bankruptcy

Closing a round is the beginning, not the end. More capital means more burn, and more burn means the difficulty of running the company climbs a notch. During th…

2026.05.14 · 11 min read Fundraising

A VC Fund's Remaining Life Tells You How Eager They Are to Invest — How to Use Fundfinder

The same VC behaves differently in year one of a fund's life than in year six. Right after a fund closes, there is little pressure to deploy capital, so the fir…

2026.05.14 · 11 min read Fundraising

Fundraising Is a Marriage Market — Why Market Kurly and Ohouse's Founders Used the Same Metaphor

Many founders compare fundraising to the marriage market. The founders of Market Kurly and Ohouse each used the same metaphor in interviews: no matter how many…

2026.05.14 · 11 min read Fundraising

Why Equal-Split Co-Founder Equity Gets You Cut at the First VC Meeting

It happens over and over: a team splits equity 33/33/33 because there are three co-founders, or 25/25/25/25 because there are four, and then hears back from a s…

2026.05.13 · 10 min read Fundraising

The VC Funnel: 100 Reviewed, 2 Funded — Which Stage Are You Getting Cut At?

When a VC firm reviews 100 business plans in a year, an average of two or three actually get funded. Stopping at the conclusion "the odds are low" doesn't help…

2026.05.13 · 11 min read Fundraising

Early-Stage Investing Is Poker — How VCs Really Bet on Just 1–3 Cards

Late-stage investors bet with a full hand — accounting data, market share, KPI trends. Early-stage investing is nothing like that. It's closer to poker played w…

2026.05.13 · 9 min read Fundraising

The Startup That Priced Itself at 200% of Fair Value — and Shut Down 18 Months Later

The instinct that "a higher valuation means a better deal" holds true at the seed stage — but flips completely from Series A onward. A case Lee Taek-kyung of Ma…

2026.05.13 · 10 min read Fundraising

Cold Email Only Works at Seed — Mid- and Late-Stage VCs Run on Warm Introductions

"I sent cold emails to 100 VCs and barely got any replies" is a complaint that comes up constantly from founders past their Series A. What most "how to write a…

2026.05.13 · 9 min read Fundraising

What Market Kurly Learned From 95 Rejections — Turning No Into Data

In Market Kurly's earliest days, founder Kim Sul-ah met with 100 investors and got rejected by 95 of them. It was a time when the very idea of dawn delivery and…

2026.05.13 · 10 min read Fundraising

Don't Raise Money for Your Business — a Self-Diagnosis for Small-Business vs. J-Curve Models

Once the equation "raising money = success" takes hold in your head, you stop asking whether your business actually needs outside investment in the first place.…

2026.05.13 · 9 min read Fundraising

TAM, SAM, SOM: The Market-Sizing Formula VCs Actually Trust

The first slide a VC questions when they open your pitch deck is market size. If even one or two numbers feel unrealistic, they won't bother reading the team, p…

2026.05.13 · 11 min read Fundraising

All What, No How-To: 6 Pitch Deck Patterns That Get You Cut Instantly

At seed-to-Series-A pitch meetings, it takes a VC 30 seconds to 3 minutes on average to decide a deck 'isn't worth reviewing further.' Decks that get cut in tha…

2026.05.13 · 11 min read Fundraising

The Mashup Angels Seed Formula: How a Korean Accelerator Decides in 3 Weeks

Mashup Angels is a Korean accelerator that closes seed checks of ₩50M-300M in an average of 3-9 weeks from first meeting to wire transfer — as fast as 3 weeks o…

2026.05.13 · 11 min read Fundraising

Business Plan vs. Pitch Deck: Not the Same Thing — 7 Critical Differences

No shortage of founders walk into their first VC meeting carrying nothing but their government-grant business plan as a PDF. The outcome is almost always the sa…

2026.05.13 · 11 min read OpenSeed Product Guide

OpenSeed's Verified VC and Accelerator Avatars: Built by People, Not Prompts

Type 'evaluate this like a VC would' into ChatGPT or Claude, and you'll get feedback that sounds plausible. But is that feedback actually the questioning patter…

2026.05.13 · 9 min read OpenSeed Product Guide

Inside the OpenSeed Report: More Than a One-Line Star Rating

Most other AI business-plan tools stop at a one-line verdict like '80/100, high chance of approval.' You never learn where that score came from, which sentences…

2026.05.13 · 8 min read Technology & Research

Anthropic Just Automated Investment Banking — Why That's Good News for OpenSeed

Anthropic released an open-source agent repository that handles ten categories of junior investment-banking work — pitch book production, market research, finan…

2026.05.06 · 7 min read Technology & Research

Human Bias in Business Plan Evaluation — Where AI Compensates for Halo, Anchoring, and Recency

Business plan reviewers are human. A strong first slide colors every score that follows. The first big number a reviewer sees hardens into the benchmark for eve…

2026.05.06 · 8 min read Fundraising

The Cap Table — A Founder's Guide to Early Equity Design

The cap table is the document founders study last but need to get right first. A cap table designed poorly in the first round compounds its distortions through…

2026.05.05 · 11 min read Startup Guide

Revenue Projection Templates — Formulas for SaaS, D2C, and Marketplace Models

Revenue projections are the section of a business plan most often inflated — which is exactly why reviewers check them first to test your credibility. A good re…

2026.05.05 · 10 min read Fundraising

Seed vs. Series A — How Funding Rounds Differ and When You're Ready

In startup ecosystems worldwide, the line between 'seed' and 'Series A' keeps getting blurrier. Round names run from pre-seed to seed to pre-A to Series A, but…

2026.05.05 · 9 min read Fundraising

SAFE vs. Convertible Notes — Which Is Better for Founders

The two structures used most often in seed rounds are the SAFE and the convertible note. Both defer setting a valuation now and convert into preferred stock at…

2026.05.05 · 9 min read Fundraising

Burn Rate and Runway — The Numbers Investors Actually Look At

The first thing an investor checks in a pitch meeting isn't revenue or users — it's burn rate and runway. How much cash the company burns each month, and how ma…

2026.05.05 · 8 min read Fundraising

KPI Dashboard — A Monthly Investor Reporting Template

Of all the things companies that have raised a seed or Series A round tend to neglect, regular investor updates top the list. A good investor update shapes whet…

2026.05.05 · 8 min read Startup Guide

The Problem Statement — How to Fit It on One Page

The Problem section is the first thing reviewers and investors read in a business plan. Fail to clear that first page, and nothing that follows — market, soluti…

2026.05.05 · 8 min read Startup Guide

TAM/SAM/SOM in Practice — Formulas, Examples, and How to Validate Them

A single number like 'a ₩5 trillion market' in a business plan gets questioned almost every time. Real credibility comes from breaking market size into three la…

2026.05.05 · 9 min read Startup Guide

Competitor Analysis — How to Build a Positioning Map

Writing 'no competitors' in a business plan reads as a signal that you haven't researched the market thoroughly enough. Every business has direct competitors, i…

2026.05.05 · 8 min read Startup Guide

Milestones and Timelines in Your Business Plan — A Structure Evaluators Trust

Milestones and timelines are the section of a business plan evaluators use to gauge your ability to execute. They aren't impressed by a schedule that's packed o…

2026.05.05 · 7 min read Startup Guide

Business Plan Clichés — 10 Phrases to Cut and What to Write Instead

Evaluators read hundreds of business plans every year. Certain words show up again and again, and the moment they appear, credibility drops instantly — words li…

2026.05.05 · 6 min read Startup Guide

Co-Founder Disputes — 5 Common Patterns and How to Prevent Them

Co-founder conflict consistently ranks among the top reasons startups fail. Disputes rarely appear out of nowhere — they build up from small agreements that wer…

2026.05.05 · 8 min read Startup Guide

Hiring Your First Employee — The Stock Option vs. Salary Trade-off

Hiring your first employee at the seed stage is one of the hardest negotiations you'll face — you need to land full-time talent while cash is tight. Stock optio…

2026.05.05 · 7 min read Startup Guide

Founder Time Management — The Owner List and Delegation Decisions

Founders never have enough time. Yet within the same 24 hours, other founders at a similar stage manage to get more done. The difference lies in the framework t…

2026.05.05 · 7 min read Fundraising

After an Investor Says No — How to Get Back in the Room Within 12 Months

Getting turned down by investors is a standard part of fundraising. Closing a single seed round usually means meeting 30-50 investors, of whom one or two end up…

2026.05.05 · 7 min read Technology & Research

Can You Trust an AI Business Plan Review? — A 4-Point Checklist for Users

More and more services now claim to review business plans with AI. But the label 'done by AI' alone isn't reason enough to trust the output. Does it reflect how…

2026.05.05 · 6 min read Technology & Research

Same Business Plan, Same Score — The Value of Consistency in AI Review

Can you trust a service whose AI review gives a different result every time? Just as an exam that gives the same student a different grade every time loses its…

2026.05.05 · 5 min read Technology & Research

When AI Says '85 Points,' Can You Trust It? — Understanding Calibration

When an AI gives a business plan a score of 85, what does that number actually mean? The intuitive expectation is that a business plan scoring 85 should have ro…

2026.05.05 · 5 min read Technology & Research

Why 15 Reviewers Instead of One — The Value of Divided Review

Which produces more reliable results when AI reviews a business plan: a single generalist evaluator, or a team of domain specialists working in parallel? OpenSe…

2026.05.05 · 6 min read Startup Guide

The Problem Section of Your Business Plan — 4 Things Reviewers Judge in 30 Seconds

Reviewers judge the P (problem recognition) section not in minutes, but in seconds. For people who read hundreds of business plans a year, 30 seconds is plenty…

2026.05.02 · 8 min read Startup Guide

Bottom-Up Revenue Estimation — Formulas, Examples, and a Practical Template

Anyone can write “₩10B in revenue by year 5.” But if you can't explain where that number came from in five seconds, you lose credibility instantly. Top-down est…

2026.05.02 · 9 min read Fundraising

The First 30 Seconds of Your Pitch Deck — Sequoia's 17 Slides, Adapted for Korea

The first 30 seconds of an investor meeting decide the remaining 30 minutes. If slide one doesn't simultaneously answer “why now,” “why us,” and “why this,” the…

2026.05.02 · 9 min read Startup Guide

Co-Founder Equity Split — The 50/50 Trap and Recommended Structures

How you split equity among co-founders at the outset shapes your company's fate. What looks like fair '50/50 equality' is often a deadlock structure that paraly…

2026.05.02 · 8 min read Fundraising

Seed Valuation — Pre/Post-Money, SAFE, and Conversion Math

Seed valuation is less something you 'negotiate' than something you 'calculate.' Get pre-money and post-money confused, and you'll miscalculate your own stake i…

2026.05.02 · 9 min read Startup Guide

The OpenSeed Field Guide to 15 AI Reviewers

Meet the 15 reviewers you'll see on our homepage. Here's a single place to see exactly what each one looks for in a business plan. All 15 read your plan at the…

2026.05.01 · 10 min read Technology & Research

What Makes OpenSeed Different — A Patent-Protected AI Review Architecture

AI business plan review services are becoming increasingly common. But OpenSeed is not just another AI review tool. Letting users choose whose perspective they…

2026.05.01 · 8 min read Technology & Research

Can You Trust an AI Business Plan Review?

Show a business plan to an AI and ask for an evaluation, and one question follows immediately: “Can I actually trust this score?” Feeding a business plan into a…

2026.05.01 · 11 min read Startup Guide

8 Key Metrics Every Founder Should Know

VCs, reviewers, and investors all read a business through the same language. If you don't speak that language, no matter how compelling your business plan looks…

2026.05.01 · 13 min read Startup Guide

Don't Build Pretty Garbage — The One Thing Founders Actually Need to Do

Almost every founder has, at some point, built “pretty garbage”: the design is polished, the demo looks great — and nobody uses it. There's exactly one reason:…

2026.05.01 · 8 min read Startup Guide

The TAM Inflation Trap — Revisiting Crossing the Chasm

One of the fastest ways a business plan loses a reviewer's or investor's trust is writing “TAM: ₩1 trillion.” Everyone wants to put down a big number, but the m…

2026.05.01 · 9 min read Startup Guide

How to Ask ‘Why’ Five Times — A Self-Diagnosis Workbook for Your Business Plan

A wrong diagnosis produces a wrong prescription. Toyota's 5 Whys technique is the simplest, and yet one of the most powerful, tools for separating “surface symp…

2026.05.01 · 8 min read Fundraising

Founder-Problem Fit — What Investors Really Look for Before PMF

Early-stage investors are widely known to look at PMF (Product-Market Fit), but in practice there's a metric they check even more often, before PMF has had a ch…

2026.05.01 · 9 min read Startup Guide

How to Write a Business Plan — 7 Traits Every Winning Business Plan Shares

The business plan is the hardest document most founders face first. It's not obvious what to write, how much, or how — but the plans that win follow strikingly…

2026.04.30 · 11 min read Fundraising

IR Deck Structure — The 10 Slides Investors Judge in 3 Minutes

VCs receive dozens of IR decks a day. In a first meeting, they spend an average of 3–5 minutes on the whole deck — and the first impression is set in 30 seconds…

2026.04.30 · 12 min read