pavel 1ar.ionov
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Sumr v2.40: social video, smart formats, and structured prompts

Sumr now extracts transcripts from Instagram, TikTok, X, and Facebook videos. Auto-detects recipes, lists, and events. Structured prompt pipeline and reliability fixes across the board.

Sumr v2.40 is out on the App Store.

This one is all about video beyond YouTube and smarter summarization. Share a TikTok, Instagram reel, or X video - Sumr pulls the transcript and summarizes it. The prompt pipeline got a full rebuild too.

Social media video summarization

Instagram, TikTok, X/Twitter, and Facebook videos are now supported via cloud transcript extraction (Supadata). Share a video link from any of these platforms and Sumr extracts the spoken content, same as YouTube.

TikTok short URLs (vm.tiktok.com) are resolved automatically - different short links to the same video deduplicate correctly. AI-generated titles fill in when social posts don’t have meaningful ones.

Content-type aware summarization

Sumr now auto-detects content types and adjusts the output format. Recipes get ingredient lists and steps. Event pages get dates and schedules. Listicles stay as lists instead of being flattened into paragraphs.

Structured prompt pipeline

The prompt system was rebuilt from monolithic strings into composable parts. Every summarization now includes structured frontmatter (URL, title, content type, source) so the model has full context. Follow-up questions use the same structured input as the initial summary.

System meta and system prompt are composed at runtime instead of being cached as a single blob. Stale local prompt defaults are auto-discarded when Remote Config updates.

Under the hood

  • Fixed YouTube transcript not used on macOS desktop (Safari preprocessing extracted page chrome instead of transcript)
  • YouTube shares now preserve page description and comments alongside transcript
  • Graceful transcript failure: summarizes from page content instead of showing error
  • YouTube cloud transcript fallback expanded from subscriber-only to all proxy users
  • URL normalization for reliable summary caching (strips tracking params, canonicalizes URLs)
  • Subscription paywall auto-dismisses after successful purchase with confirmation screen
  • Fixed custom prompt controls disabled for subscribers who didn’t buy follow-up IAP separately
  • Fixed subscriber quota showing raw Int.max instead of infinity symbol
  • Debug view now shows prompt source, mode, prefixes, and last fetch time
  • Updated onboarding and paywall to highlight video summarization

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