Only one medium-effort run ended without a webpage.
The ThinkRun story,
40 ways.
ThinkRun was built across 323 days. We wanted to see how well GPT-5.6 could turn that same development record into a compelling launch story—and whether more reasoning effort produced better results. So GPT-5.6 Sol and Terra each received the same repository context and creative brief 20 times. These are all 40 outcomes, including the runs that produced no page.
Here’s what we learned.
Higher reasoning effort did not make this task more reliable. The clearest way to judge creative quality is to open the same brief’s outputs and decide which story you would ship.
Six high-effort runs produced no reviewable page.
$25.13 at high effort versus $15.75 at medium.
high effort
7/10 shipped • $12.83 usage

$1.17 usage • 53 min • 46 KB
View page ↗$0.42 usage • 1 min • 0 KB
Terminal outcome$0.99 usage • 2 min • 0 KB
Terminal outcome
$1.33 usage • 13 min • 34 KB
View page ↗
$1.35 usage • 53 min • 34 KB
View page ↗
$1.40 usage • 52 min • 46 KB
View page ↗
$0.66 usage • 7 min • 25 KB
View page ↗$0.80 usage • 3 min • 0 KB
Terminal outcome
$1.84 usage • 30 min • 55 KB
View page ↗
$2.87 usage • 57 min • 45 KB
View page ↗medium effort
9/10 shipped • $8.38 usage
$0.53 usage • 2 min • 0 KB
Terminal outcome
$1.16 usage • 12 min • 28 KB
View page ↗
$0.52 usage • 51 min • 21 KB
View page ↗
$0.75 usage • 5 min • 29 KB
View page ↗
$0.95 usage • 53 min • 20 KB
View page ↗
$1.05 usage • 26 min • 18 KB
View page ↗
$0.65 usage • 24 min • 21 KB
View page ↗
$1.19 usage • 60 min • 25 KB
View page ↗
$0.46 usage • 4 min • 23 KB
View page ↗
$1.13 usage • 21 min • 26 KB
View page ↗high effort
7/10 shipped • $12.31 usage

$2.99 usage • 35 min • 36 KB
View page ↗
$1.25 usage • 24 min • 25 KB
View page ↗$0.88 usage • 3 min • 0 KB
Terminal outcome
$0.85 usage • 21 min • 23 KB
View page ↗
$1.60 usage • 10 min • 28 KB
View page ↗$0.82 usage • 3 min • 0 KB
Terminal outcome
$1.90 usage • 10 min • 28 KB
View page ↗$0.48 usage • 3 min • 0 KB
Terminal outcome
$0.77 usage • 51 min • 24 KB
View page ↗
$0.77 usage • 51 min • 34 KB
View page ↗medium effort
10/10 shipped • $7.37 usage

$0.83 usage • 5 min • 27 KB
View page ↗
$0.90 usage • 4 min • 18 KB
View page ↗
$0.58 usage • 13 min • 24 KB
View page ↗
$0.87 usage • 34 min • 19 KB
View page ↗
$0.92 usage • 4 min • 21 KB
View page ↗
$0.68 usage • 40 min • 19 KB
View page ↗
$0.56 usage • 12 min • 19 KB
View page ↗
$0.79 usage • 23 min • 27 KB
View page ↗
$0.72 usage • 21 min • 22 KB
View page ↗
$0.50 usage • 4 min • 22 KB
View page ↗Sorted by price
Across Sol and Terra · all effort levels
See all of the work.
The benchmark details are here for anyone who wants to audit the cohort, inspect the source boundary, or watch the three rounds of founder feedback that shaped this page.
What the model could inspect before it designed.
Every run received the same history-free snapshot of the relevant ThinkRun working repository. The model chose which material to read and how to turn it into a story.
Three rounds of feedback.
Each recording captures the page as it existed, the feedback given, and the next revision it produced.
Make the experiment clear.
Reframed the page around the ThinkRun story, surfaced the methodology and learnings, and replaced horizontal shelves with vertical discovery.
Open feedback packet ↗Make it feel like ThinkRun.
Applied the real brand system, added global price sorting, made failed outcomes unmistakable, and rebuilt the controls for mobile sharing.
Open feedback packet ↗Let people explore first.
Moved source evidence, cohort verification, and the feedback trail into this appendix so findings and filters remain immediate.
Open feedback packet ↗