CharacterQuilt design API

Generate on‑brand designs directly in Claude or ChatGPT.

Get on-brand design directly in

10¢ per page

Claude

ChatGPT

Make a launch ad for Account Briefs. Keep it on brand.

Used CharacterQuilt create_design

Designs that pass for your designer's.

Up close, AI design gives itself away. Here's what CharacterQuilt does differently.

01Real templates

Starts from work your designers already did.

CharacterQuilt builds from your real templates and past assets, not a blank prompt. Its model is trained specifically for production-ready assets, on millions of real examples from our product, so the logo, layout and palette stay yours.

The new Deel ad CharacterQuilt made from those references

Logo, exactly as supplied
Body copy, every accent intact
Button from the template

02Type that holds up

Most AI design breaks on the letters.

Zoom in on an AI-generated design and the type gives it away: letters that don't match, words that melt into shapes. It's the main reason AI design hasn't broken through to production work. CharacterQuilt uses a model built for exactly this, so every word stays crisp.

Close-up of FLUX's Rippling one-pager body copy, with garbled words like "contoncors Πou Ιniipo" — **FLUX**Rippling one-pager

Close-up of CharacterQuilt's Rippling one-pager body copy, crisp and correct — **CharacterQuilt**Same passage, same zoom

Close-up of FLUX's Glean one-pager body copy, with garbled words like "updatem de rclejcylons" — **FLUX**Glean one-pager

Close-up of CharacterQuilt's Glean one-pager body copy, crisp and correct — **CharacterQuilt**Same passage, same zoom

Close-up of Ideogram's Deel one-pager body copy, with garbled words like "aplieóes de corte aplicáíves" — **Ideogram**Deel one-pager

Close-up of CharacterQuilt's Deel one-pager body copy, crisp and correct — **CharacterQuilt**Same passage, same zoom

03True to your typeface

Built to the standard designers hold.

CharacterQuilt pairs the work of real designers with a fix for what they hate about AI assets. Every letter comes back uniform and true to your typeface, easy for your team to edit. Hand it a real ad as a template and it keeps the structure: only the headline, supporting lines and button change, while the layout, lettering and art stay where your designer put them. So you move faster right inside ChatGPT and Claude.

See the full comparison

A real Synthesia ad with hand-lettered text, used as the template — Your ad

CharacterQuilt's new Synthesia ad on the same template, with new copy in matching hand lettering — New, from CharacterQuilt

Uniform, true fontGlean one-pager

CharacterQuilt's Glean one-pager body copy, crisp and uniform

Same brief. Every tool.

Each one got the same reference ads, logo, copy and prompt through its own API. Pick a company and compare.

Deel ad made by CharacterQuilt — **CharacterQuilt**design API

OpenAI images
Nano Banana
FLUX
Ideogram

Questions, answered

What is the CharacterQuilt design API?

A way to generate on-brand ads and one-pagers directly in Claude or ChatGPT. It starts from your real templates and past assets, and keeps your logo, layout, palette and type intact.

How much does it cost?

10¢ per page. The design API is opening through a waitlist.

How does it compare with other AI design tools?

We gave CharacterQuilt, OpenAI images, Nano Banana, FLUX, Ideogram and Gamma the same reference ads, logo, copy and prompt for 11 companies, through each tool's own API. Every result is shown side by side on this page.

Why does type matter so much in AI-generated design?

Type is where AI design usually gives itself away: small text comes out uneven, blurry or misspelled, which keeps it out of production work. CharacterQuilt uses a model built for production-ready assets, so every letter stays uniform, crisp and true to your typeface, and easy for your team to edit.

Your brand,
in every chat.

Be first to use the design API in Claude and ChatGPT. 10¢ per page.