Headroom vs UIPrompt

It also checks your driver for the subgroup bug that makes some in-browser LLMs produce garbage.

A visual component editor that turns your design into spec-grade prompts for Claude Code, Cursor, and v0. Design buttons, badges, checkboxes, and inputs, then get...

About Headroom

It also checks your driver for the subgroup bug that makes some in-browser LLMs produce garbage. One outbound request: ~0.4 MB of public model metadata to derive bytes per token, no run data attached. Projections are measured read bandwidth ÷ bytes touched per token, at empty context; derived manifests make bytes-per-token exact, estimates fall back to an honest band. Real engines land below the ceiling; the gap is engine overhead (see methodology). Runs the transformers.js WebGPU path on the exact model your ceiling is quoted for ( onnx-community/gemma-4-E2B-it-ONNX.

About UIPrompt

A visual component editor that turns your design into spec-grade prompts for Claude Code, Cursor, and v0. Design buttons, badges, checkboxes, and inputs, then get pixel-perfect AI output. UIPrompt is a visual component editor that writes spec-grade prompts with exact values, state diffs, theme-aware tokens, and accessibility rules. You are implementing a UI component in this codebase. Where Tailwind has no utility for an exact value, use arbitrary values (e.g. Do not substitute your own design taste, do not round values, and do not add visual features the spec does not mention.