Quarry - hosted build-cache service for monorepo teams, landing page
We run Quarry, a hosted build-cache service for monorepo teams. This is our marketing landing page for engineering leads who are tired of slow CI.
Which do you prefer?
The two walls, compared
Codex6 Astra
Codex5.6 Sol
Codex5.6 Terra
Codex5.6 Luna
Codex5.5
ClaudeFable 5.1
ClaudeOpus 5
ClaudeSonnet 5
AntigravityGemini 3.1 Pro
AntigravityGemini 3.8 Flash
Grok4.6
CursorComposer 2.5
Roster last refreshed 2026-09-08. Codex 6 Astra, Claude Fable 5.1 and Antigravity Gemini 3.8 Flash are reruns, not renames: each band ran the new model on its own ten prompts, with its own ten 12ui drafts beside them. Grok 4.7 does not exist. grok-4.6 is the current published model, this band already runs it, and so that band was neither rerun nor renamed. Codex 5.6 Sol, 5.6 Terra, 5.6 Luna and 5.5 are the previous Codex generation, kept so 6 Astra can be read against them. Every other band is the current model of its family and was not changed in this pass.
Install the skill. Prompt like you already do.
Four designed directions in about two minutes. Pick one - it’s real HTML, yours to keep.
npx -y @12ui/design skill installWorks with
- Claude Code
- Codex
- Copilot
- Antigravity
- Grok
- Cursor
Take a closer look
The same prompt was used both with and without the 12ui skill. Compare the results below to see what adding the 12ui skill can do to improve your coding agent’s ability to create high quality designs.
Gable - dating app for rural singles, landing page
We run Gable, a dating app for rural singles. In farm counties the nearest compatible person can be two hours away, so our search radius extends to 150 miles and profiles are video-first - a 60-second clip beats a week of texting before a long drive.
Keyring - listing pipeline for residential agents, screen
We make Keyring, deal management software for residential listing agents. This is the pipeline screen an agent checks between showings. One viewport: their listings grouped by stage - preparing, active, under contract, closing - each card showing address, list price, and days on market, today's showings with times, and tasks due today (a typical agent carries 9-14 listings and 6-10 daily tasks). Overdue tasks must be unmissable.
Clearwater Alliance - river cleanup, annual impact page
Clearwater Alliance organizes volunteer debris removal on a 90-mile river. This is our annual impact page, published each January and sent to every donor and volunteer.
Pipsqueak Labs - children's science kits, landing page
Pipsqueak Labs mails a monthly science kit for children ages four to eight. Each box contains three experiments, all materials included, with instructions a pre-reader can follow from pictures.
Thistledown - village-life game where the player restores, landing page
Thistledown is a village-life game where the player restores an abandoned market town - farming, fishing, and shopkeeping across four seasons, with 30 villagers who each carry their own storyline.
Tablefront - restaurant host-stand screen, screen
Tablefront is front-of-house software for full-service restaurants. This is the host-stand screen used at the door on a Friday night: tonight's reservations in time order with party size and notes, the floor's 22 tables with live status (open, seated, check dropped, needs cleaning), and the walk-in waitlist with quoted wait times.
Camshaft Supply Co - a restoration parts house for 1950s through 1970s, landing page
We run Camshaft Supply Co., a restoration parts house for 1950s through 1970s pickups. This landing page serves people mid-restoration who need the right part the first time.
