Head to head · Chat & research · updated Oct 25, 2026
AssemblyAI vs Glasp
AssemblyAI scores 25 to Glasp's 10 on public evidence for summarize articles, videos & threads, and they rank #1 and #4 there. Both are free to start. Numbers below are the same public signals the ranking uses, recomputed nightly — nothing here is sponsored.
AssemblyAI
A speech-to-text API with diarization, sentiment, chapters and an LLM layer for summarizing transcripts.
+ Strong accuracy plus built-in audio intelligence (speaker labels, chapters, PII redaction) and LeMUR for asking questions of a transcript.
− No consumer app, and per-hour pricing adds up on high volumes compared with self-hosted Whisper.
Glasp
A social web highlighter with AI summaries of articles and YouTube videos that feeds your highlights into a personal knowledge base.
+ One-click YouTube transcript and summary plus highlight export to Notion, Obsidian and Readwise.
− The social feed and public highlights by default are not what everyone wants, and the AI features feel bolted on.
Side by side
public evidence| AssemblyAI | Glasp | |
|---|---|---|
| Evidence score / 100 | 25 | 10 |
| GitHub stars | closed source | closed source |
| Hacker News stories, 30d | 5 | 0 |
| Release-feed mentions, 30d | 0 | 0 |
| Last activity | – | – |
| Pricing | Free tier · Free credits; then per hour of audio | Free tier |
| Platforms | api | web, chrome-extension, ios |
| Maker | AssemblyAI | Glasp |
Which one?
Pick AssemblyAI if
- you want the stronger public evidence (25 vs 10)
- you need it on api
Best for developers building transcript analysis.
Pick Glasp if
- you need it on chrome-extension, ios, web
Best for highlighting and summarizing web reading.