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Newsletter

A newsletter is the top-level container for a specific topic or interest area. Each newsletter has:
  • A name and optional description
  • One or more sources (where content comes from)
  • One or more sections (what content to extract)
  • A cadence (delivery schedule)
  • An active/paused state
You can create multiple newsletters for different topics — for example, one for AI coding and another for crypto news.

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Source

A source is a content feed from a supported platform. Sources provide the raw content that sections process. Supported platforms:
PlatformSource typeExampleAvailability
YouTubeChannel@fireship, @anthropic-aiFree & Pro
RedditSubredditr/ClaudeAI, r/LocalLLaMAFree & Pro
X/TwitterAccount@AnthropicAI, @OpenAIFree & Pro
RSSFeedAny RSS/Atom feed URLPro only
PodcastFeedPodcast RSS feed URLPro only
Email InboxForwarding addressForward newsletters to your unique Reduce addressPro only
X/Twitter sources have a separate limit: 4 on Free, 50 on Pro. All other sources share a pool of 20 on Free and 100 on Pro.
Coming soon: Hacker News, GitHub, Discord, and more. Sources are shared across the newsletter — every section has access to content from all sources in its parent newsletter.

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Section

A section is a filtered view of your newsletter’s content, defined by a custom prompt. Free users get 1 section with a default prompt; Pro users can create up to 10 sections with custom prompts. Each section has:
  • A name (displayed as a heading in the newsletter)
  • A prompt (tells the AI what to extract and how to summarize)
The prompt is the key to getting exactly the content you want. Be specific about what you’re looking for. Good prompts:
  • “New AI coding tools, extensions, and IDE integrations released this week”
  • “Breaking changes, deprecations, and migration guides for popular frameworks”
  • “Practical tutorials and how-to guides for using Claude in development workflows”
Vague prompts (avoid):
  • “Interesting stuff”
  • “AI news”
  • “Updates”

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Cadence

The cadence defines when your newsletter is delivered. Free users are limited to weekly delivery. Pro users can choose any schedule:
CadenceDescriptionAvailability
WeeklyOnce per week on a chosen dayFree & Pro
DailyEvery day at a specified timePro only
Every X daysEvery 2, 3, or N daysPro only
Specific dayse.g., Monday and ThursdayPro only

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Delivery

A delivery is a single instance of your newsletter being sent. Each delivery:
  • Contains only new content published since the previous delivery
  • Includes all sections with their AI-generated summaries
  • Links back to original source content
  • Is stored in your delivery history for reference
If no new content is available from your sources, Reduce will let you know rather than sending an empty newsletter.

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Content freshness

Reduce tracks what content has already been delivered. Each delivery includes only content published since the last delivery, which means:
  • No duplicate content across deliveries
  • Every email contains fresh, relevant information
  • Newsletters stay concise and actionable