Hear the comments
before you post
Paste your launch copy. AI agents read every word and react like real people: who stayed, who bounced, and what would change their mind.
Agents grounded in real conversations from
How it works
Three steps. Sixty seconds.
No accounts, no waiting, no awkward cold DMs asking for feedback.
Describe your idea
Tell us what you are building and who it is for. We crawl Hacker News, Reddit, and DEV.to to find the real conversations your customers are already having.
We cast your audience
Six AI agents are built from actual community voices. Each one has a backstory, a personality, a tool stack, and opinions shaped by real human language.
Watch them react
Paste your launch copy. Every agent reads it cold, decides in 8 seconds whether to stay, then tells you exactly why they would or would not sign up.
Network view
Your audience, visualized
Six agents. Six perspectives. Each one reads your copy cold and reacts based on their own frustrations and trust thresholds. Click any node to see what they thought.
Why Hypothesis
Not a chatbot. A focus group.
Every agent is shaped by real conversations about products like yours.
Agents with backstories
Each persona has a job, a side project, a bad week, and strong opinions. Built from real HN threads and Reddit rants, not generic prompts.
Real community grounding
We search Hacker News, DEV.to, Reddit, and Product Hunt for the actual language, pain points, and trust signals your market uses.
No sugar coating
If your headline is boring, they will scroll past. If your pricing is vague, they will say so. You see exactly who bounced and why.
Patterns surface fast
When 5 of 6 agents flag the same trust issue, that is not noise. Themes are extracted automatically so you know what to fix first.
Your ideas stay yours
No database. No accounts. Close the tab and everything is gone.
Fully ephemeral
No database. Close the tab and everything is gone. Your session exists only in your browser.
No accounts
No passwords, no profiles, no tracking pixels. Just an email to keep your free simulations fair.
Real grounding
Agents are built from publicly available community data. No proprietary datasets, no black boxes.
Common questions
No. Think of Hypothesis as the first feedback that helps you design better real world conversations. It surfaces patterns and blind spots so you know what to ask when you talk to actual people.
We search Hacker News, Reddit, DEV.to, and Product Hunt for real conversations your customers are already having. Each agent is shaped by genuine language patterns, frustrations, and trust signals. Not a generic prompt.
Completely. Nothing is stored. No database, no accounts, no tracking, no logs. Your session exists only in your browser and disappears when you close the tab.
Founders, indie hackers, and product builders who want honest signal before they launch. Especially useful before Reddit posts, Product Hunt launches, X threads, or landing page copy.
You should not trust it blindly. But when 7 out of 8 agents raise the same pricing objection, that pattern is worth investigating. The value is in surfacing repeated signals, not replacing human judgment.
Your next launch
deserves a dress rehearsal
Paste your copy. See who stays, who bounces, and why. Takes 60 seconds.