Comparison
WebGPU vs WASM AI
This is not a winner-takes-all comparison. WebGPU is the acceleration path that makes larger browser workloads realistic. WASM is the compatibility path that keeps the product usable when acceleration is weak, unavailable, or unstable.
| Dimension | WebGPU | WASM |
|---|---|---|
| Best-case throughput | Higher | Lower |
| Compatibility breadth | Narrower | Broader |
| Long-run predictability | Device-dependent | Often more uniform |
| Model ambition | Better for heavier workloads | Better for conservative fallback |
In practice, a browser transcription platform needs both. The useful question is not which backend is superior in theory, but which backend helps the current device finish the job cleanly.