Buildfast,but
buildtherightthing
You talk to customers. The AI works in the background — analyzing your conversations, building frameworks, validating assumptions from real data. You stay in control of the details. It handles everything else.
Join 500+ founders already validating smarter. Free early access.
Live Assumption Map
Validated
Predictable pricing > portfolio quality
Disproved
Designers want project-based work
Emerging
Budget anxiety is the #1 blocker
Next step
Test pricing model with 5 more users
Building is easy now. Building the right thing isn't.
You can spin up a product in days with AI agents. But a polished app with zero customers? That's the real cost.
of startups fail
Most built something nobody wanted
fail due to no market need
The #1 killer — not the code, the idea
dead projects per year
API credits burned, ambition faded
Build fast, but build the right thing. Don't burn your credits and your drive on something the world doesn't want.
You talk to people. The agent does the rest.
StartSah is an engine that works in the background while you focus on what actually matters — understanding your customers.
Talk to Real People
Go have conversations. Understand the problem you're solving. Your time is spent with customers — not filling out frameworks or building canvases.
Feed the Agent
Dump your voice recordings, notes, and audio into StartSah. The agent ingests everything and starts working — analyzing patterns, validating assumptions from real data, mapping the market.
Supervise & Adjust
The agent autonomously builds interactive frameworks — but you're in charge. Review, adjust, and refine bidirectionally. These frameworks become your single source of truth. Every conversation makes them sharper.
Launch What Converts
You end up with a launch plan built from what your customers actually want. No guesswork. Deep understanding — because you spent your time with people, and the AI handled everything else.
Your AI co-founder, not a black box
An engine that does the heavy lifting while you focus on what no AI can replace — real conversations with real people.
Background Engine
Works autonomously while you're out talking to people. Market mapping, assumption validation, competitive analysis, feature prioritization — all happening behind the scenes.
Bidirectional Control
You don’t hand everything over and hope for the best. You supervise, adjust, and refine. The agent proposes frameworks — you decide what stays, what changes, and what matters.
Detail Obsessed
Little details differentiate startups. In an age of increasing AI delegation, those nuances are at risk of being lost. You maintain full control over every detail through direct collaboration.
Living Source of Truth
Every conversation you have feeds the agent. Frameworks evolve with each interview. The more you talk to customers, the more clarity and control you gain over your launch plan.
Why StartSah?
See how we compare to the alternatives.
| Feature | StartSah | ChatGPT / Claude | Lean Canvas Template | ValidatorAI |
|---|---|---|---|---|
| Autonomous background analysis | Yes | No | No | No |
| Voice & audio processing | Yes | Partial | No | No |
| Bidirectional framework collaboration | Yes | No | No | No |
| Assumption validation from real data | Yes | Partial | Partial | No |
| Interactive frameworks (single source of truth) | Yes | No | Partial | No |
| Persistent memory across sessions | Yes | No | No | No |
| Detail preservation at scale | Yes | No | No | No |
| Customer-backed launch plan | Yes | Partial | No | Partial |
| Build spec export (Lovable/Cursor/Replit) | Yes | No | No | No |
| Built for vibe-coding founders | Yes | No | No | Partial |
Conversations in, launch plan out
You feed it real customer data. It gives you a plan built entirely from what people actually want.
What you feed in
What you get out
Simple, founder-friendly pricing
Start free. Upgrade when you're ready to go deeper.
Free
Validate one idea through Phase 1
- 1 idea
- Phase 1 (Ideation) only
- 50 AI messages
- All 4 Ideation frameworks
- Basic Go/Refine/Kill verdict
Solo Founder
For serious founders building the right thing
- 3 active ideas
- All 4 phases (Ideation → Launch)
- Unlimited AI messages
- Persistent memory across sessions
- Custom interview script generation
- Full artifact export (PDF, Markdown)
- Build spec export (Lovable/Cursor/Replit)
Team
For co-founding teams and studios
- Everything in Solo
- Unlimited ideas
- Shared dashboards
- Team decision tracking
- Custom validation templates
- Priority support
Frequently asked questions
Don't burn your credits on
something nobody wants
Validate before you build. Know there are real customers, real demand, and real potential — before you spend a single API credit.
Free early access for waitlist members. No credit card required.