Blog

What 10 or 30 hours of file transcription a month costs on Otter.ai, Rev, Sonix, HappyScribe and ScribeToAny — cost per hour, free plans and limits (Oct 2026).

An 11MB worker bundle and cold starts meant a 3.5s TTFB. How edge HTML caching, bundle splitting and deferred hydration got us to a 95+ Lighthouse score.

Workers can't run a multi-minute GPU job or Modal's gRPC SDK, so we call Modal over HTTP and get results back by signed webhook. The design and its sharp edges.

Closed captions add speaker IDs and sounds for viewers who can't hear; subtitles carry only the dialogue. A side-by-side example, SDH, and which you need.

What Word Error Rate means, how transcription accuracy is really measured, why even humans don't hit 100%, and what moves AI accuracy up or down.

A reference to transcript and subtitle formats — SRT, VTT, TXT, TSV, CSV, JSON, ASS, SSA, SMI and TTML — with real examples and when to use each.