Pre-trained model · built with Think-Reason-Learn
FounderBrain
NeurIPS'26 workshopFounderBrain analyses how one person talked in a meeting and compares it with 773 public interviews of founders and CEOs. You use it inside your agent, which then coaches you on what to try in your next conversation.
- Free
- No account
- Transcript not stored
AgentsClaude+4 more
MeetingsGranola+6 more
What you get
- Your speaking type
- One of five speaking types found across 773 founder interviews, such as The Open Enthusiast. If you were close to a second speaking type, it says which.
- Four styles
- Where you sit on four scales compared with 773 founder interviews, covering enthusiasm, openness, certainty, and whether you explain with data or stories. For example, more enthusiastic than 76% of founders.
- Who you sound like
- The well-known founders and CEOs whose public interviews are closest to yours, and the one least like you.
- Habits that stand out
- Things you do much more or much less often than most founders, such as putting dates on things or qualifying your claims.
- Three takeaways
- Two habits to try and one to keep, which your agent can explain using moments from your transcript.
Leo MartinThe Candid Advocate
EnthusiasmMore enthusiastic than 94% of founders
MeasuredEnthusiastic
OpennessAbout as personal as most founders
PersonalReserved
CertaintyFirmer claims than 91% of founders
QualifiedFirm
Explains withMore analytical than 74% of founders
DataStories
Talks most like Jensen Huang
Things to ask your agent
Run all my VC meetings in Granola through FounderBrain and tell me how I come across.
Granolawith Granola connectedHere's the transcript of my seed pitch yesterday. Run it through FounderBrain and tell me how I came across.
with a transcript attachedI'm Speaker 1 in this call with an investor. Use FounderBrain to tell me what to work on before my next pitch.
with a transcript attachedI have a Series A meeting tomorrow. Run this last pitch through FounderBrain. What should I keep doing?
with the text pasted inHow it works
- FounderBrain splits the chosen speaker's answers into short passages.
- A small language model on FounderBrain's own server answers 100 fixed yes or no questions about each passage, such as whether it backs a point with a specific figure, like revenue or growth, or tells a story from experience.
- A statistical model from psychometrics turns those answers into the four styles, compared with 773 public interviews of 266 guests of Lenny's Podcast, 343 of Mixergy and 164 well-known founders and CEOs.
The same transcript always gives the same result. Neither end of a scale is better, and the result describes one conversation, not a personality. FounderBrain is meant for coaching, not for predicting success.
Your transcript is not stored
Your agent sends the transcript to FounderBrain's server when it runs an analysis. The server scores it and deletes it as soon as the analysis finishes. It keeps no transcript or report, and nothing you send is used to train a model.
- Only the speaker you choose is analysed.
- Our logs are designed to hold word counts, timings and errors, never text or names.
- Your conversation with your agent is kept by its provider under its own terms.
The privacy policy has the details.
Transcripts and support
A transcript needs one speaker turn per line, like this.
Ana: We started the company after running a freight yard.
Tom: How did you find your first customers?Your agent can reformat most exports from Zoom, Meet, Teams, Otter or caption files if you ask it to. FounderBrain needs at least 300 words from you and works best with a few thousand, and a transcript can be up to 15,000 words.
- Support
- support@thinkreasonlearn.com
- Security
- security@thinkreasonlearn.com
Frequently asked questions
Is FounderBrain free?
Yes. FounderBrain is free and needs no account. There is an hourly limit on analyses so that the service stays available for everyone.
Does FounderBrain store my transcript?
No. The transcript is scored on FounderBrain's server and deleted as soon as the analysis finishes, and nothing you send is used to train a model. Your conversation with your agent is kept by its provider under its own terms.
How is it different from asking an AI assistant for feedback on my pitch?
An assistant on its own gives an opinion. FounderBrain measures your answers against 773 public interviews of founders and CEOs with a fixed model, so the same transcript always gets the same result, and your agent then coaches you from those measurements.
Which meetings work best?
Pitches, investor calls, sales calls and interviews where you answer questions, with at least a few thousand words from you. It works with transcripts from Granola, Otter, Zoom, Google Meet, Teams and most other tools.
Who makes FounderBrain?
Vela Research, the research arm of Vela Partners, with the University of Oxford. It is built with Think-Reason-Learn, the open-source decision harness for predictions.