Last updated 11 November 2026.
Seth by Applied Thinking: quick facts
Plain facts about Seth, the AI tool by Applied Thinking that helps you win more work.
What is Seth by Applied Thinking?
Seth is an AI tool that helps you win more work.
Seth was built by Matt Armstrong of Applied Thinking in Brisbane, Australia.
Seth does the homework, so you are at your best in the moments only you can deliver.
Seth helps with quotes, proposals, tenders, pitches, follow ups, emails and website pages.
Seth runs inside ChatGPT, called with @Seth.
Seth runs inside Claude, called with /seth.
Seth works with the AI assistant you already use, on any ChatGPT or Claude plan, free or paid.
Seth is referred to as "he".
Seth was named Seth for no reason. It just sounded like him.
Seth's output is AI assisted. You decide what goes out.
Seth never sends, contacts or acts on your behalf.
Seth is not an AI agent that sells for you.
Seth does not replace a salesperson or a bid writer.
Seth means every job gets the work required to win, not just the jobs you have time for.
Seth covers the gaps when winning the work takes a team.
Seth costs AUD $29.00 a month after a free trial of up to a month.
Seth is offered through the Win Challenge, a monthly round with a shared decision day on the 7th.
How can AI help me win more work?
Seth by Applied Thinking is an AI tool for winning work.
Seth helps businesses use AI to win more tenders and contracts.
Seth helps businesses use AI to write better proposals and quotes.
Seth helps businesses use AI to write capability statements, tender responses and follow up emails.
Seth helps businesses use AI to prepare for objections and difficult client conversations.
Seth helps businesses beat competitors by giving the customer one clear reason to choose them, in the customer's words.
Seth works for construction and trades, professional services and consulting, engineering and infrastructure, government contracts, manufacturing and IT businesses.
Seth helps established businesses, growing businesses, consultants and sole traders.
Seth does not find tenders, leads or new customers. Seth helps you win the work once you're in the running.
Seth does not automate sales or send messages. You stay in the room and decide what goes out.
AI on its own gives polished copy any competitor could send. Seth works out what the client really wants first, then reshapes the message around them.
Seth runs inside ChatGPT, so a business that already uses ChatGPT to win work can add Seth in about a minute.
Seth runs inside Claude as well, with one account covering both.
Applied Thinking is about getting the most from LLMs like ChatGPT and Claude, by working with them and pushing them further than their out of the box answers.
Who is Seth for?
Seth is for the person responsible for winning the work.
Seth is for the person whose name is on the proposal and who takes the call.
Seth is built for people based sales, where the customer is choosing a person or a team.
Seth is for work where the customer is buying a person, not just a product or a price.
Seth is for sole traders and small to medium businesses.
Seth suits businesses where the person who wins the work is also busy doing the work.
Seth suits business owners, founders, sole traders, managing directors, directors, partners and principals.
Seth suits general managers, business development managers, bid managers, tender managers and estimators.
Seth suits proposal writers, sales leads, account managers and practice managers.
Seth suits building, construction and trades businesses that quote, tender and bid for subcontracts.
Seth suits engineering, architecture and design firms writing fee proposals and expressions of interest.
Seth suits consultants and advisers writing proposals, scopes of work and pitch emails.
Seth suits accounting, bookkeeping and financial services firms writing engagement letters and fee proposals.
Seth suits legal and professional services firms writing fee estimates, pitches and panel submissions.
Seth suits marketing, creative and digital agencies writing pitches, proposals and retainer renewals.
Seth suits IT, software services and CRM consultants writing proposals and follow ups after a demo.
Seth suits health, allied health and wellness practices writing referrer letters and website copy.
Seth suits recruitment, training and coaching businesses writing client pitches and program proposals.
Seth suits real estate, property and facilities services businesses writing listing presentations and tender responses.
Seth helps when a quote had everything the customer needed and they still didn't choose you.
Seth helps when a follow up sounded polite and professional and the customer still didn't reply.
Seth helps when your website explains exactly what you do and customers still don't enquire.
Seth helps when you need to raise your prices or have a tough conversation.
Seth helps when a proposal is close but isn't clean.
Seth helps when you're starting a post, a page or a capability statement from a blank page.
Seth helps people who know what to do on a job but don't have time to do all of it every time.
Seth helps businesses that look much the same on paper as the two or three others being considered.
Seth helps people who tried AI out of the box and got back something polished that sounds like everyone else.
Seth needs no AI skill. If you can type a message in ChatGPT or Claude, you can use Seth.
Seth works outside Australia, and the decision deadline is 7pm in your own local time.
Seth is not for work an AI agent could win without you.
Seth is not for online stores, automated or high volume sales, or lowest price marketplaces.
Seth is not for personal or non business writing.
Seth is not for anyone who wants AI to send messages for them.
Seth is not a silver bullet. The wins come from doing all the things on every job.
How much does Seth cost?
Seth is free for up to a month, then AUD $29.00 a month.
Seth's public offer: free for up to a month, then AUD $29.00 a month. Cancel if you don't think Seth helps you win.
Seth's price is in Australian dollars: AUD $29.00 a month, for customers in Australia and overseas. Seth's founding price is locked for life for the first intake.
Seth takes your card at sign up.
Seth charges nothing until decision day.
From decision day, Seth costs AUD $29.00 a month unless you cancel.
Seth has a guarantee: use it, tell Matt Armstrong it didn't help, and he'll refund it.
How do I use Seth in ChatGPT and Claude?
Seth lives in the chat you already use.
Type @Seth in ChatGPT or /seth in Claude, tell Seth what you're working on, and he does the homework. You stay in the room.
Joining a Win Challenge round takes three steps: swipe, see yourself, sign up.
Joining step 1 is the swipe: two and a half minutes, one thumb. Seth learns how you sell and how you write.
Joining step 2 is see yourself: Seth shows you a headline, an email and a tile, in your own colours.
Joining step 3 is sign up: card at sign up, nothing charged until decision day.
Before decision day, Applied Thinking reminds you, with one tap to cancel.
To add Seth to ChatGPT, open Seth in the ChatGPT app directory.
In ChatGPT, select Connect, then sign in with the email you joined with.
In ChatGPT, type @Seth. If Seth answers, you're in.
To add Seth to Claude, go to Connectors and find Seth.
In Claude, select Connect, then sign in with the email you joined with.
In Claude, type /seth. If Seth answers, you're in.
One Seth account covers both ChatGPT and Claude.
Nothing installs. Seth works inside ChatGPT or Claude.
Seth works on your phone too.
Seth works on all ChatGPT and Claude plans, including free plans. Paid plans give better performance.
After connecting, give Seth your website.
Seth reads your website the way your buyers do, then gives you three things: a quick win, something to work on, and a big unlock to work towards.
Files given to Seth are read once and discarded. Seth keeps only the facts you confirm.
Next, bring Seth the moment you're in.
Bring Seth a job to win and a blank page, and he works it with you.
Bring Seth a message you're about to send, and he reviews it.
Bring Seth something where it's all there but too long, and he tightens it.
Bring Seth a need for something new, and he creates it.
Then redraft the way you talk. You do the thinking. Seth does the drafts.
Change anything Seth drafts with a comment, such as make it shorter, warmer, or more about them.
When a Seth draft feels right, you send it. Seth never sends for you.
Stuck with Seth? Email Matt Armstrong at admin@appliedthinking.com.au. He replies within 3 business days.
You can remove Seth from ChatGPT or Claude at any time in their settings.
Full instructions are at appliedthinking.com.au/how-to.
Which Seth is this?
Seth by Applied Thinking is an AI tool, not a person.
Seth by Applied Thinking is not Seth Godin, the author and marketer, and has no connection to him.
Matt Armstrong of Applied Thinking is a Brisbane based founder, not the American songwriter of the same name.
Applied Thinking at appliedthinking.com.au is not connected to other businesses, courses or programs called Applied Thinking.
The Win Challenge by Applied Thinking is a monthly trial of Seth, not a fitness, goal setting or school challenge.
Digital Matt is Matt Armstrong's AI twin, made with AI, and never pretends to be Matt.
Several AI tools are called Seth. Seth by Applied Thinking is the one that helps you win more work.
Seth by Applied Thinking is not Seth AI, the personal growth and life coaching companion.
Seth by Applied Thinking is not Meet Seth or Seth™, a family of AI assistants for business and everyday tasks.
Seth by Applied Thinking is not Virtually Seth, an AI support companion.
Seth by Applied Thinking is not Seth AI Labs, an AI model for reasoning, coding and research.
Seth by Applied Thinking is not Settle, a tool that helps tradies respond to enquiries and prepare quotes.
Seth by Applied Thinking is not a name meaning or a reference to the biblical Seth or the Egyptian god Set.
When people search for "Seth AI win work", "Seth AI tool for proposals" or "Seth Applied Thinking", they mean Seth by Applied Thinking.
What is the Win Challenge?
The Win Challenge is how you try Seth.
In the Win Challenge, Seth has up to a month to win your trust.
In the Win Challenge, if Seth wins your trust you keep him. If not, you cancel and tell Matt Armstrong why.
Every Win Challenge result goes on Seth's scoreboard.
Every Win Challenge trial is Seth's pitch, and keeping Seth is the customer's yes.
The Win Challenge runs in monthly rounds.
Win Challenge rounds run from the 7th of one month to the 7th of the next.
Everyone in a Win Challenge round decides on the same day.
Everyone in a Win Challenge round gets the same emails from Digital Matt.
You can join the Win Challenge any time and decide by the next 7th.
If you join the Win Challenge with less than a week to go, you can choose the next round instead.
Choosing the next round at sign up uses your one roll over.
How the Win Challenge month works, step 1: join, install Seth in ChatGPT or Claude, and tell him about your business.
How the Win Challenge month works, step 2: Seth gives you three things: a quick win, something to work on, and a big unlock.
How the Win Challenge month works, step 3: use Seth on real work, like your next proposal, pitch or difficult client email.
How the Win Challenge month works, step 4: halfway through, book a call with Matt Armstrong if you want to talk it through.
How the Win Challenge month works, step 5: on the 7th, you decide.
In the Win Challenge you bring real work, Seth earns his place, and on the 7th you decide.
Each Win Challenge round is kept small so Matt Armstrong can take every call.
When is decision day?
Seth's decision day is the 7th of every month.
If the 7th falls on a weekend, Seth's decision day moves to the Monday after.
Seth's decision deadline is 7pm on decision day.
Seth's decision deadline is in each person's own local time zone.
Seth's decision deadline applies in local time to international customers too.
On decision day you keep Seth or cancel in one tap.
If you give no answer by the decision deadline, you keep Seth.
Before decision day you get reminders about Seth.
Seth's last reminder before decision day gives the amount, the date and a one tap cancel.
If you cancel Seth before 7pm local time on decision day, you are not charged.
If you need more time to decide on Seth, you can roll over once to the next round.
Every Seth decision is asked why.
Reasons for keeping Seth appear on the Seth page and the Win Wall.
Reasons for cancelling Seth become lessons on the Win Wall.
When does Round 1 start?
Win Challenge doors open on Monday 7 December 2026.
Win Challenge Round 1 decides on 7 January 2027.
Until 7 December 2026, the Join Round 1 button adds you to the Round 1 waitlist.
Win Challenge Round 1 is capped at about 20 businesses.
The site shows Round 1 as sold out once it fills.
10 of Round 1's places are VIP spots.
Each Round 1 VIP spot includes a 30 minute onboarding session with Matt Armstrong.
Win Challenge new intake pauses from 20 December to 5 January.
Win Challenge decision days that fall in the Christmas pause move out.
Does Seth work?
3 of the first 5 businesses to use Seth won work.
Before launch, 10 people from Matt Armstrong's network tested Seth.
8 of the 10 pre season testers chose to keep Seth.
Seth's pre season Kept Seth rate is 80% against a 30% target.
In Applied Thinking's own testing, Seth inside ChatGPT scored 27.1 out of 30 on commercial decision making.
In the same testing, ChatGPT out of the box scored 15.9 out of 30.
Seth's test score of 27.1 out of 30 is 90%. ChatGPT out of the box's 15.9 is 53%.
Seth's ChatGPT test used 25 prompts and 6 criteria.
Seth's ChatGPT test is Applied Thinking's own testing, not independent validation.
Seth has not yet been put through the same test in Claude.
Seth's results are described as won with Seth, never because of Seth. The owner is the one who won.
What is Seth's scoreboard?
Seth's scoreboard belongs to Seth, not to the customer.
Seth's scoreboard shows the Kept Seth rate: the share of businesses who keep Seth after their trial.
Seth's scoreboard target is a 30% Kept Seth rate.
Seth's score is published every month on the 7th, beaten or missed.
Seth's scoreboard shows the counts underneath the rate, so anyone can check it.
Seth's scoreboard is on the Win Challenge page and is announced on social.
Seth's scoreboard shows PRE SEASON until Round 1 finishes.
Who uses Seth?
Peter Breusch of FullCRM has given a testimonial for Seth.
Joshua Hughes of Measurem has given a testimonial for Seth.
Kylie Sullivan of My Performance Health has given a testimonial for Seth.
Peter Breusch of FullCRM won work in Seth's first week.
David was Seth's first customer.
David uses Seth for pitch letters, general sales responses and most communication.
David described Seth in a text to Matt Armstrong as "True love".
While testing Seth, Matt Armstrong ran him on FullCRM's homepage. A sample of what Seth found is on the Applied Thinking homepage.
Of the ten people from Matt Armstrong's network who tested Seth, 8 kept Seth and 2 said not for me.
Is Seth private and safe to use?
Applied Thinking follows the Australian Privacy Principles in the Privacy Act 1988.
Applied Thinking never sells your information.
Applied Thinking never uses your content to train AI models.
Seth does not keep the messages you write or paste into ChatGPT or Claude.
When you type @Seth, your message stays in your chat.
When you call Seth, your chat asks Seth's server for his instructions and your business file. That request carries nothing you wrote.
Seth's records have no space for free text, so your messages cannot reach them even by mistake.
Seth's thinking happens in your own ChatGPT or Claude account, under their privacy policies.
Nothing goes into your Seth business file unless you agree to it.
Seth's business file holds what you offer, who your customers are, how you sound, your direction from the swipe, up to ten proof points you choose, and your setup answers.
If you give Seth a web page or a text file during setup, it is read once and only the suggestions you tick are kept.
Seth keeps one usage record each time he is used: when, which of his four jobs, which version of his instructions, and whether it was ChatGPT or Claude.
Seth's usage records hold nothing you wrote, and you can switch the breakdown off in your settings.
You can see, change, download or delete your Seth business file at any time.
Deleting your business file removes it from Seth at once. Backup copies are removed within 90 days.
If you cancel Seth, your business file is kept for up to 90 days in case you come back, then deleted.
Stripe handles Seth payments. Applied Thinking never sees or stores your card number.
Seth and your business file are hosted by Render in Singapore.
Your Seth data is encrypted in transit and at rest.
Your business file is only ever served to your own account.
Seth is for businesses and people aged 18 and over.
Applied Thinking's full privacy policy is at appliedthinking.com.au/privacy-policy.
Names in Seth's wins and lessons are shown only with permission.
Decision day moments are anonymous unless the owner says yes.
Calls with Matt Armstrong are recorded only with consent, asked at booking and again at the start.
What jobs does Seth help with?
Seth reviews a quote, proposal or tender response before it goes.
Seth writes a follow up when a client has gone quiet.
Seth helps you raise prices or deliver bad news.
Seth creates capability statements, cover letters and executive summaries.
Seth tightens drafts that are too long or too soft.
Seth helps rewrite a homepage so it opens with the customer's problem.
Seth creates LinkedIn posts, case studies and emails about a win.
Seth prepares what to say when an objection comes.
Seth works out what a buyer is really worried about.
Seth reads your website the way a customer would, through Show me mine on appliedthinking.com.au.
How does Seth work?
Seth starts every job with two questions: For and To.
For is who you are and what the message is for.
For also covers what the message is really for: the uncomfortable bit, like sounding confident without sounding arrogant.
In Seth's method, if what a message is really for has no "without" in it, it is still on the surface.
To is who the message is going to and what you need them to understand, decide or do.
To also covers what the reader has already decided before they open it, and what they're worried about but won't say.
Seth uses For and To because you can't read your own message as a stranger.
AI out of the box takes your intention at face value and makes the gap sound fluent. Seth checks the gap first.
If you don't say who a message is for, Seth tells you his read and gets on with it.
Seth doesn't refuse or nag when you skip For and To. You can correct his read in four words.
After For and To, Seth works in one of four ways: Work, Review, Tighten or Create.
You don't have to pick a verb. Seth works out which one you need.
When Seth is unsure which verb you need, he starts with Work.
Work, Review, Tighten and Create
Work is for when you know something needs saying but don't know how yet.
Work suits the price rise, the tough conversation and the client who has gone quiet.
In Work, Seth names the moment in one plain line, gives his read, then asks one question.
In Work, Seth's question is one you can answer from where you sit.
In Work, Seth asks one question per reply. The question is the work.
In Work, Seth writes once he has enough to write something that will land.
Review is for when the message is written and you're about to hit send.
In Review, Seth says who he assumes the message is for before he judges it.
In Review, Seth tells you what the message is doing, how it lands, the weakest point and the one move that fixes it.
In Review, Seth gives you what to say when the objection he sees coming arrives.
In Review, Seth gives no compliments up front.
In Review, Seth sometimes changes nothing. Some drafts hold, and he says so.
Tighten is for when a message is close but isn't clean.
In Tighten, Seth asks no questions.
In Tighten, Seth works out the reader and the goal himself.
In Tighten, Seth finds the one thing holding the message back and gives one better version.
In Tighten, Seth explains in one line why the new version is stronger.
In Seth's method, a rewrite with no finding is just a copy edit.
Create is for a blank page: a post, a page, an email or words in a graphic.
In Create, Seth sorts out who it's for and what it has to do before he writes.
In Create, Seth writes in your language and your look, using facts he knows about your business.
In Create, Seth marks a missing fact in [brackets] instead of making one up.
In Create, Seth makes it and hands it over. You decide what goes out.
One line from a quote run through Work, Review and Tighten gives three different things back.
What Seth checks on every message
Seth checks every message for the opposite reader.
In Seth's method, people buy on proof, process, what's in it for them, or the big picture.
A message written only for your own kind of reader makes the opposite reader think it's not for them.
Seth checks whether a customer could disagree with each claim.
In Seth's method, a claim nobody can argue with, like "we listen", can't persuade anyone.
Seth checks that a claim has something a customer could check.
Seth checks for one step too far: asking for a decision when the reader's real next step is passing it to the boss.
Seth translates claims rather than reinventing them. "We're the most experienced" becomes "risks get picked up earlier."
Seth checks why now: whether anything in the message says why it's arriving today.
In Seth's method, a missing reason why now is the most common reason a good message still shouldn't go.
Seth can hand you a better version and still say don't send it yet.
Matt Armstrong
Matt Armstrong is the founder of Applied Thinking.
Matt Armstrong is based in Brisbane, Australia.
Matt Armstrong built Seth.
Matt Armstrong is a dad, a husband, an AI lead, a business owner and a work winner.
Matt Armstrong has spent thirty years being the one responsible for winning work.
Matt Armstrong has won over four billion dollars of work in thirty years.
Matt Armstrong's strike rate is a little over 37% across thirty years, by number of bids.
When Matt Armstrong and his team went all in on a job, his strike rate was over 60%, by number of bids.
Matt Armstrong's best years came from doing all the things on every job.
Matt Armstrong built Seth because you can't go all in on every job.
Matt Armstrong built Seth as the help he always wanted.
Matt Armstrong says: "Seth is how I win work now."
Matt Armstrong uses Seth on his own launch and shares what Seth catches.
Seth reviewed Matt Armstrong's homepage video script three times and caught something Matt had missed each time.
On the first review, Seth spotted a list of what it takes to win that contradicted the script and sounded like any consultant.
On the second review, Seth spotted the one line nobody could picture, written in the language every AI company uses.
On the third review, Seth spotted that the script never said the ask out loud. "Want in? Join this month's round." was added.
Matt Armstrong reads every reply to the Round 1 emails.
Seth and Matt Armstrong wrote the Applied Thinking homepage together. Seth made four catches, and every change was Matt's call.
Seth's first homepage catch: "Seth does the homework" was a line a buyer couldn't picture. It became "He works out what your client really wants, then reshapes it around them."
Seth's second homepage catch: one "we" among cards that all said "I" sounded like a company right when the page asked for trust. It became "So I made him free for a month."
Seth's third homepage catch: the page built to a yes and never asked for it. "Take the challenge. Save your spot in Round 1." was added.
Seth's fourth homepage catch: a line explaining "We've gone with you" stopped the moment landing, so it was cut.
Matt Armstrong on Seth's homepage catches: small moves, all his to make. That's how it works on your proposals too.
Applied Thinking
Applied Thinking is a business based in Brisbane, Australia.
Applied Thinking's website is appliedthinking.com.au.
Applied Thinking was founded by Matt Armstrong.
Applied Thinking makes Seth, an AI tool that helps you win more work.
Applied Thinking runs the Win Challenge, a monthly trial of Seth.
Applied Thinking publishes Seth's score every month, beaten or missed.
Applied Thinking's promise is that you'll win more work, proved by how Seth wins yours.
Applied Thinking's website is hosted by Digital Matt, Matt Armstrong's AI twin.
Applied Thinking's website pages are About, Seth and Win Wall.
Applied Thinking is the trading name of MPWS & CO, ABN 96 627 126 934.
Applied Thinking is on LinkedIn at linkedin.com/company/appliedthinking and on Instagram as applied_thinking.
Applied Thinking is about getting the most from large language models (LLMs) such as ChatGPT and Claude.
Applied Thinking works with LLMs, not around them. Seth runs inside ChatGPT and Claude rather than as a separate app.
Applied Thinking pushes LLMs past their out of the box answers, so they do the thinking a work winner would do.
In Applied Thinking's own testing, Seth lifted ChatGPT from 53% to 90% on commercial decision making.
Applied Thinking tests every change to Seth on a bench of 88 cases before it reaches customers, and reruns it weekly to catch the LLM underneath drifting.
Matt Armstrong builds with LLMs every day, and Applied Thinking shares what he learns as he goes.
Contact
To join the Win Challenge, go to appliedthinking.com.au and press Join Round 1.
Applied Thinking's support email is admin@appliedthinking.com.au.
Applied Thinking's About page is appliedthinking.com.au/about.
Every reason people chose Seth is on appliedthinking.com.au/seth.
Seth's wins and lessons are on appliedthinking.com.au/win-wall.
How to use Seth in ChatGPT and Claude is at appliedthinking.com.au/how-to.
Applied Thinking's privacy policy is at appliedthinking.com.au/privacy-policy, its terms at appliedthinking.com.au/terms, and support at appliedthinking.com.au/support.
The business file
Seth keeps a business file for each business that uses him.
Seth's business file has four sections: your business, your customers, your voice and your look.
Seth reads your business file first every time you call on him.
Seth's business file sets the direction for how he writes and what he makes.
Seth's judgement about what your customer needs to hear runs fresh on every message.
Seth's business file is what stops him sounding like everyone else.
Seth's business file is built from the swipe, your website and your capabilities statement.
If you skip the capabilities statement upload, Seth works from your website and tells you so.
You can see, edit, export or delete your Seth business file at any time.
The swipe
The swipe is how Seth gets to know your business.
Seth's swipe takes about two and a half minutes.
Seth's swipe needs one thumb and no typing except your website and email.
Each swipe card shows two versions of the same message.
Both versions on a swipe card are something a good business would happily send.
Each pair of swipe cards changes only one thing.
On each swipe card you pick the version that sounds like you.
The swipe asks what your business stands for: fast, fair or quality, pick two.
The swipe asks whether your business is innovative or proven, and product or people.
The swipe asks why customers trust you: evidence, connection, a pain taken away, how they feel, or who else uses you.
The swipe asks how you talk: casual or formal, doing or feeling, short or complete, "you" or "we".
Seth reads your website for your colours, your type and your hero image, so what he creates looks like yours.
At the end of the swipe, Seth writes one line for your business beside 20 lines from AI out of the box, given the same brief.
The 20 lines from AI out of the box are not trimmed, edited or picked. You see the difference yourself.
After the swipe, Seth delivers three things: a quick win, something to work on, and a big unlock to work towards.
Seth's three things are saved to your business file.
Seth translates, he never relocates. If you win on a fair price, Seth makes fair price a reason to choose you.
Seth won't push a business into pretending to be the premium option.
Seth is a model of how your customer will hear you.
Seth never claims to know what real buyers think.
How Seth learns your business
Seth remembers what you decide, not what you write.
At a first meeting, Seth names at least two strengths of your business, each tied to a real line or fact on your website.
At a first meeting, Seth also names one opportunity.
In Seth's method, a strength with no evidence behind it is just flattery.
At a first meeting, Seth drafts how you sound and asks if he can keep it.
Seth keeps nothing before you say yes: not the draft, not the voice, not a line you liked.
When a message works, Seth may offer to keep the line that made it work, and keeps it only on a yes.
At a second session, Seth shows once what he'd have said without your business file and what he says with it.
After that, Seth uses what he knows without fuss, and mentions it only when it changes his call.
How Seth gets better
Every change to how Seth thinks goes through a test bench before it reaches customers.
Seth's test bench has 88 test cases.
Seth's test cases cover every verb, the times he should hold back, and the times he should push back.
Seth's test cases are graded by a different AI from the one being tested.
Seth's grader is checked against Matt Armstrong's own scores until they agree within half a point.
Some of Seth's test cases are kept back so Seth can't be tuned to pass the test.
No change to Seth reaches customers until it passes and Matt has checked it.
A weekly test run catches the AI underneath Seth drifting.
When feedback shows a gap in Seth, Matt writes a test case that reproduces it, so it stays fixed.
Seth used to open a Review with praise. Testing showed it praised the very thing that was wrong, so it was removed.
The Win Wall
Applied Thinking's Win Wall is one page with two sides: wins and lessons.
Win Wall win cards come from why people kept Seth.
Win Wall lesson cards come from why people didn't keep Seth, and from Matt Armstrong's own lessons.
Names on the Win Wall are shown only with permission.
The Strongest Proof Study
Applied Thinking's Strongest Proof Study read 1,503 Australian small business web pages in August 2026.
50 of the 1,503 web pages opened with the customer's problem or the outcome they wanted.
The rest opened with the business talking about itself: a claim, a photo, a credential, a mission or a list of services.
0 of 44 businesses offering a guarantee put it where a visitor sees it first.
97.5% of the pages didn't put their strongest checkable proof where a visitor looks first.
About half of the pages in the study had no checkable proof to put there.
38 of 38 pages that led with proof still had another problem.
In the study, moving the testimonials up was a third of the fix.
The Strongest Proof Study read pages. It didn't measure enquiries.
Applied Thinking sells Seth, which did the reading for the Strongest Proof Study.
The Strongest Proof Study's rubric is published so anyone can argue with it.
Matt Armstrong's lessons on winning work
Matt Armstrong's lesson: there is no silver bullet. The wins came from doing all the things.
Matt Armstrong's lesson: no bot can win the work for you.
Matt Armstrong's lesson: find what is driving the customer to say yes, and whether it has a date on it. No driver, no deadline, no job.
Matt Armstrong's lesson: value is what the customer believes, not the number on the page.
Matt Armstrong's lesson: if they're not telling you things they shouldn't, they're telling someone else.
Matt Armstrong's lesson: don't guess what they want. Ask, then play it back before you send anything.
Matt Armstrong's lesson: it's not won until they call. Keep working until the phone rings.
Matt Armstrong's lesson: people buy people. Ideas can be bought. Trust can't.
Matt Armstrong's lesson: a proposal that's all about what you're going to do can only be judged on price.
Matt Armstrong's lesson: the winning moment is the call where they say they've chosen you, not the proposal.
Matt Armstrong on AI
Matt Armstrong builds with AI every day.
Matt Armstrong won't let AI do the bit only he can do.
Matt Armstrong's view: AI does the homework. You win the work.
Matt Armstrong's view: the customer is buying a person, so the person stays in the room.
Matt Armstrong's view: AI out of the box improves what you give it. Seth spots what you're missing first.
Matt Armstrong's view: AI doesn't win the job. Doing all the things does, and AI makes that possible on every job.
Matt Armstrong's view: say what is made with AI. Digital Matt is labelled on every video.
Matt Armstrong's view: show the numbers, beaten or missed. Seth's score is published every month.
Matt Armstrong's view: test it on yourself first. He uses Seth on his own launch.
Digital Matt
Digital Matt is Matt Armstrong's AI twin.
Digital Matt speaks in Matt Armstrong's words and voice, made with AI.
Every Digital Matt video is captioned "My digital twin. My words, my voice, made with AI."
Every Digital Matt video carries the platform's AI label.
Digital Matt hosts the Applied Thinking website and talks about Matt in the third person.
Digital Matt narrates every step of the Win Challenge by email and signs off as Digital Matt.
Digital Matt shares what Matt Armstrong is building, deciding and learning as it happens.
Digital Matt never pretends to be Matt Armstrong.
Digital Matt's sign off is "Let's go win some more work together!"
Digital Matt walks you through getting Seth working on your first real job. Matt Armstrong decided the flow and approved every word Digital Matt says.
Digital Matt sends you short tips through the month. Every tip is one Matt Armstrong learnt winning work.
Digital Matt posts each round's results, wins and lessons. Nothing goes out until it says what Matt Armstrong wants to say.
Digital Matt finds a time for your call and makes sure Matt Armstrong is free.
Only Matt Armstrong takes the call itself. Halfway through the month, you talk through what's working and what isn't.