Free ad vs Headroom

Generate 10 high-converting ad headlines instantly with AI. Free, no signup required. Works for Facebook, Instagram, Google ads and more.

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

About Free ad

Generate 10 high-converting ad headlines instantly with AI. Free, no signup required. Works for Facebook, Instagram, Google ads and more. Or see it first, free, make a finished ad from your product photo, no signup →. AdCreator AI runs inside your Shopify admin, pick a product from your catalogue and get finished 1080×1080 ad creatives for Facebook, Instagram, Google and TikTok, plus narrated video ads on Pro.

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.