01 · The idea
What stayed with us
Raw WebGPU plus SIMD-WASM can run Parakeet TDT browser inference with public kernels, a package format, cache behavior, a converter, and a benchmark harness.
02 · The local translation
What we did with it
The pinned package transcribed a 17 minute 10 second public fixture in 7.2 to 7.8 seconds on Apple WebGPU. Warm output was deterministic and no external request was observed.
03 · The boundary
Where the comparison stops
This validates reproducible browser execution, not transcription accuracy against a shared reference or readiness for default product integration. The 386.5 MiB package remains material.