| dpi | No | Pixels per inch of PNG output; needs a size in pt, mm, cm or in. Default 300. | |
| draw | No | fill: filled shapes; stroke: outline of every shape; stroke_edges: only the borders between shapes, each once (no double cuts). Default from the preset. | |
| mode | No | test: free, watermarked result for building an integration. preview: free PNG up to 1 MP without watermark, no vectors; fetch its link with format=svg to buy the vectors for 1 credit. Neither is available for vectorize_url. Default live. | |
| unit | No | Unit for width/height: px (default), pt, mm, cm, in. | |
| image | No | Image file attached to the user's message in the chat (ChatGPT). | |
| scale | No | Output size as a multiple of the source size. Not with width/height. | |
| width | No | Physical output width in unit. With width only, the height follows the aspect ratio; with height too, a sheet of that size (see aspect). Up to 10 m. | |
| aspect | No | With both width and height: fit (default, whole drawing inside), fill (covers the sheet, excess cropped), stretch (exact size, distorted). | |
| colors | No | Number of colors: 'auto', 'unlimited', or an integer 2–32 (max_colors goes up to 256). Default auto. | |
| curves | No | all: curves and lines; lines: straight segments only; lines_arcs: DXF lines and arcs, other formats as lines. | |
| detail | No | Output detail for photos. Default auto. | |
| format | No | Output formats; several formats cost 1 credit together. Default: the preset's format (svg for web). | |
| height | No | Physical output height in unit (width follows the aspect ratio unless width is set too). | |
| layers | No | Shapes stacked on top of each other, cut out of each other, or cut out and grouped by color. Default from the preset. | |
| preset | No | Settings for the job: web (default), print (PDF, shapes cut out), cut (vinyl/stickers, 8 colors), laser (2-color outlines), embroidery (12 colors, no tiny shapes). | |
| align_x | No | Horizontal placement on the sheet, 0 left … 1 right (default 0.5). Needs width and height; not with aspect=stretch. | |
| align_y | No | Vertical placement on the sheet, 0 top … 1 bottom (default 0.5). Needs width and height; not with aspect=stretch. | |
| corners | No | Keep corners sharp or round them. | |
| denoise | No | Noise reduction before tracing: 0 off … 3 strongest. | |
| palette | No | Fixed colors #rrggbb (2–256), as a list or a comma-separated string. Not combined with colors or max_colors. | |
| quality | No | Input quality: low for blurry/noisy/JPEG-heavy images. Default auto. | |
| group_by | No | Groups in the output: color (one per color) or layer (by nesting depth). SVG <g>, PDF layers, EPS blocks, DXF layers. Default: by color only for layers=cutouts_grouped (DXF always by color). | |
| min_area | No | Smallest shape kept, in px²; smaller specks are dropped. Overrides the preset. | |
| upload_id | No | ID returned by create_upload after the file was uploaded. | |
| dxf_curves | No | DXF curves as lines (polylines, default), arcs or splines. curves=lines/lines_arcs wins. | |
| gap_filler | No | on: an underlay in the shape colors hides light gaps between shapes. Needs draw=fill. Default off. | |
| image_type | No | Kind of image: artwork with smooth (anti-aliased) edges, artwork with hard pixel edges, or photo. Default auto. | |
| max_colors | No | Maximum number of colors (2–256). Not combined with colors or palette. | |
| max_pixels | No | Downscale the input to at most this many pixels before tracing (faster, fewer nodes). | |
| smoothness | No | Contour smoothing 1–10 (higher: smoother, fewer nodes). | |
| svg_version | No | SVG flavor: 1.1 (default), 1.0, or tiny1.2 (no opacity or gradient transforms). | |
| adobe_compat | No | true: SVG friendly to Adobe Illustrator (size always set, stroke widths in drawing coordinates). | |
| image_base64 | No | Exact PNG/JPEG/WebP/BMP/GIF/TIFF file bytes in base64 (≤2 MB), only when you already have them as text (e.g. from reading the file in a terminal). Never transcribe an image you only see in the conversation; call open_editor instead. Use create_upload for larger files. | |
| stroke_color | No | Stroke color #rrggbb instead of the shape color; needs draw=stroke or stroke_edges. | |
| stroke_width | No | Stroke width; needs draw=stroke or stroke_edges. Output units, or source pixels with stroke_scaling=scale. Default: hairline. | |
| transparency | No | Transparent areas: keep (stay transparent), white, or a background color #rrggbb. | |
| png_antialias | No | Anti-aliasing in PNG output. Default on. | |
| retention_days | No | Keep the result downloadable for this many days (default 24 hours). Live mode only. | |
| stroke_scaling | No | fixed (default): width stays in output units when resized; scale: width in source pixels scales with the drawing. | |
| svg_fixed_size | No | true (default): width/height on the root <svg>; false: only a viewBox (responsive). | |
| curve_tolerance | No | Curve fitting tolerance in source pixels (default ≈0.5): lower keeps more nodes. Also sets smoothness unless given. | |
| gap_filler_width | No | Gap filler width in source pixels (default 1). Needs gap_filler=on. | |
| palette_tolerance | No | With palette: how far (CIE76 ΔE) an image color may be from a palette color to snap to it; farther colors keep their own value. | |