MeltFlex AI vs Genable

16 prompt-driven image design modes

Product-specific furniture placement

Furniture photo to GLB conversion

Floorplan to rendered image or 3D model

Room photo to explorable 3D world

Cinematic walkthrough video generation

jsx

Create design trees with nested JSX markup. One jsx call builds a complete subtree atomically — nesting is the hierarchy. Keep a single logical unit inside one call; the returned root's children are already built, not stubs to be filled in later. Examples: jsx({markup: "<frame name='Card' layout='column' padding={16} fill='#FFFFFF' w='fill' />"}) jsx({markup: "<frame name='Row' layout='row' gap={8} padding={12} w='fill'><icon name='lucide:settings' size={20} /><text name='Label' w='fill'>Account</text><icon name='lucide:chevron-right' size={16} /></frame>"}) Elements: frame, text, rect, ellipse, line, icon, image, instance, component, group, section, vector Attributes (frame): layout, justify, items, wrap, w, h, minW, maxW, p, gap, bg, fill, rounded, stroke, shadow, blur, bgblur, opacity, layoutPositioning Attributes (grid container): cols, rows, gap, rowGap, colGap, colSizes, rowSizes, autoFlow, autoRows — see "Grid layout" below Attributes (grid child): colSpan, rowSpan, alignX, alignY, rowStart, colStart Attributes (text): size, weight, lineHeight, font, fill, w (w="fill" for wrap), maxLines, textTruncation, paragraphSpacing Multi-paragraph text: put a BLANK LINE between paragraphs inside <text> — it becomes a real paragraph break. A single newline is collapsed to a space (prose wrap); for a hard single-line break write {'\n'}. Pair multi-paragraph body copy with paragraphSpacing={N} for gap between paragraphs. Truncation: maxLines={N} caps a wrapping text at N lines with an ellipsis (needs a bounded width, e.g. w="fill" or w={240}). Advanced text — inline emphasis spans (**bold** *italic* ~~strike~~ in content), coloured/sized spans, vertical trim, hanging indent/punctuation, list spacing → read skill:typography (don't inline these here). Effects: shadow="0,8,32,0,#0006" or shadow={shadow(0,8,32,0,'#0006')}; blur={10} for layer blur; bgblur={20} for frosted-glass/glassmorphism background blur. Multiple effects merge automatically. Decoration in auto-layout: floating orbs/blobs/decorative shapes inside a row/column parent need layoutPositioning="absolute" so they don't get stacked into the main-axis flow. Full-frame backgrounds: set the parent frame's bg directly. Don't add a separate <rect> backdrop. Supported gradient strings (CSS-like subset, not full CSS): - linear-gradient(<angle>deg, <#hex> <pos>%, ...) e.g. "linear-gradient(135deg, #A 0%, #B 100%)" - linear-gradient(to <direction>, <stops>) directions: top/right/bottom/left and corners (e.g. "to bottom right") - radial-gradient(<stops>) centered, ellipse-fill — no position/shape modifiers - radial-gradient(circle, <stops>) centered, circle shape only - conic-gradient(from <angle>deg, <stops>) Unsupported (will be rejected): "circle at X% Y%", "ellipse at ...", "X% Y%" position syntax, named colors (red/blue/...), hsl(), and numeric stops without a percent sign. Text: <text size={24}>content here</text> Rich text (mixed inline styles in one text node — runtime parses markup per character): **bold** e.g. "Click **here** to continue" *italic* e.g. "Read the *fine print*" ***bold italic*** e.g. "This is ***critical***" ~~strikethrough~~ e.g. "Was ~~$19.99~~" {color:#HEX|text} e.g. "{color:#EF4444|Error}: something failed" {size:N|text} e.g. "{size:32|Big} then normal" Nesting stacks: "{color:#EF4444|**$9.99**}" → red + bold on the same range. For uniform whole-text styling use the weight / fill / size props instead — markup is only for MIXED styles within one text node. Instance: <instance ref="Button" variant="Size=Large"/> Self-closing: <line w="fill" stroke="#E5E7EB"/> (use line for dividers/separators; rect/ellipse for SMALL pure decoration with no children — page-level backgrounds belong on the parent frame's bg) Arc/Ring: <ellipse w={120} h={120} arc="0 270" fill="#4F46E5"/> (arc="start end innerRadius?" — innerRadius 0-1 makes a donut/ring) Grid layout: `layout="grid"` + `cols={N}`. Omit `rows` for auto-rows (rows grow to fit children); set `rows={M}` for a fixed N×M. `gap`, or `rowGap`/`colGap` separately. - Per-track sizing: `colSizes="240px 1fr 1fr"` (fixed sidebar + two flexible columns) or `rowSizes="80px 1fr"` (fixed header row + flexible body). Tokens: `Npx`/`N`=fixed px, `Nfr`=flexible share (`1fr 2fr` ⇒ 1:2), `hug`=fit-content. Setting `colSizes`/`rowSizes` infers `cols`/`rows` from the token count — don't also pass a conflicting count. - Auto-flow: `autoFlow` packs children row-major into the next free cell (best for galleries/masonry, esp. with mixed spans). `autoRows` lets the grid manage its own row count. - Per-child: `colSpan`/`rowSpan` (cell spanning), `alignX`/`alignY` (start|center|end|auto within the cell), `rowStart`/`colStart` (0-based explicit cell anchor — requires manual placement, so do NOT combine with `autoFlow`). Sizing defaults (lean on them): rows are HUG (cells fit content) and the container HUGS its height automatically, while children default to fill-width / hug-height. So a content gallery needs only `cols` + a `w` (fixed px or `"fill"`) — no `rowSizes`, no height. For equal-height rows (KPI tiles, dashboards) set `rowSizes="1fr 1fr"` (children then FILL the rows); for fixed-height bands use px row sizes. A `rowSpan>1` child fills its span. Gotchas: (1) the container can hug HEIGHT but not WIDTH (columns are FLEX) — always give it a `w` (`"fill"` or px). (2) `justify`/`items` are no-ops on a grid — use per-child `alignX`/`alignY`. (3) for a 1-column stack use `layout="column"`, not grid. Prefer grid for a 2-D matrix (galleries, KPI tiles, pricing tiers, dashboards); use row/column when children differ in width or you need space-between. Variable binding: fill/bg/stroke accept qualified bare-name token strings (e.g. bg="$Theme/Bg/Surface"). Object literals (fill={{variable_id:...}}) drop the binding silently — always use the string form. Swap an existing subtree: jsx({replaceId: "<id>", markup: "..."}) replaces the old node at the same parent and sibling index atomically, preserving position in one call. Markup must have a single root. Use jsx for tree creation; edit for property updates on known nodes.