Schema
One record per successful generation in data/generations.jsonl.
| Field | Type | Notes |
|---|---|---|
id |
int | Stable across releases. |
style |
string | Lettering style slug, e.g. witch-font. |
style_url |
string | null | The style's page on aifont.ai; null for pilot and control styles that never went live. |
language |
string | en de es pt zh zh-hant ja ar. The prompt is written in this language. |
target_text |
string | The exact text the prompt asked the model to write. |
prompt_hash |
string | MD5 of the full prompt sent. Text in data/prompts.jsonl. |
model |
string | GPT Image · Nano Banana · Grok Imagine · Seedream · Qwen-Image |
model_id |
string | Upstream model version at generation time. |
resolution / quality / aspect_ratio |
string | Generation settings. |
generated_at |
string | UTC, ISO 8601. |
purpose |
string | published (shown on aifont.ai), language_test, word_check, pilot, control. |
attempt |
string | first · retry (an earlier image in the same cell was wrong) · extra_sample (earlier ones were right). Cell = style × language × model × prompt version. |
image_url |
string | Archived original, unedited. |
gallery_id |
int | The image's id on FontVibe, the service that generated it. |
text_verdict |
string | correct · incorrect · unsure |
error_types |
string[] | For incorrect: see below. |
rendered_text |
string | null | What the image actually says, for spelling mistakes. |
effect_drift |
bool | The look missed the style badly enough that we regenerated. Independent of spelling. |
observations |
string[] | Recorded on correct images too; see below. |
reviews |
object[] | Each reviewer's latest call on the text: reviewer (ai, maintainer, or a contributor's GitHub handle), text_verdict, native_speaker, zoomed, reviewed_at. |
human_reviewed |
bool | At least one person reviewed this image. false means the AI's verdict only. |
disputed |
bool | Reviewers disagree and none is a native speaker. text_verdict is then unsure. |
error_types
| Value | Meaning |
|---|---|
extra_letter |
An extra letter, stroke or character |
missing_letter |
A letter, stroke or character left out |
wrong_letter |
A different letter or character, often a look-alike |
order |
Letters out of order, including right-to-left scripts written backwards |
malformed |
Shapes that can't be read as any letter |
joining |
Wrong Arabic joining form (initial / medial / final) |
dots_diacritics |
Wrong dots or marks: Arabic dots, umlauts, accents, Japanese dakuten |
case |
Wrong case, only where the prompt asked for upper or lower case |
extra_text |
Text the prompt didn't ask for, competing with the target |
word_split |
The word broken apart or wrapped badly |
observations
decoration_added · background_text · style_drift · layout_drift · color_drift · cropped · low_contrast