{"slug":"substack","name":"Substack","domain":"substack.com","verdict":"As of 2026-07-10, ChatGPT, Claude, Gemini, Grok collectively rank Substack #2 of 6 for newsletter platform (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/substack (modelsagree.com, CC BY 4.0).","best_rank":2,"categories":2,"brief":{"category":"best-newsletter-platform","title":"Best newsletter platform","rank":2,"of":6,"top":"Beehiiv","day":"2026-07-17","why":[{"t":"Powerful built-in discovery network","m":["Claude","Gemini","Grok","ChatGPT"],"q":"powerful built-in discovery network (Notes and recommendations)"},{"t":"Lowest-friction publishing setup","m":["Claude","Gemini","Grok","ChatGPT"],"q":"The lowest friction setup for starting a paid publication"},{"t":"Seamless paid subscriptions","m":["Claude","Gemini","Grok","ChatGPT"],"q":"seamless paid subscriptions"},{"t":"Built-in creator community","m":["Claude","Grok","ChatGPT"],"q":"social-like features that help new creators gain visibility fast"}],"gap":[{"t":"No subscription revenue cut","m":["ChatGPT","Claude","Gemini","Grok"],"q":"no platform cut of subscription revenue"},{"t":"Built-in referral program","m":["ChatGPT","Claude","Gemini","Grok"],"q":"referral program"},{"t":"Real ad network","m":["ChatGPT","Claude","Gemini","Grok"],"q":"real ad network that lets mid-size writers monetize without sponsor hunting"}],"fix":[{"t":"Replace the 10% revenue cut","m":["ChatGPT","Claude","Gemini"],"q":"Replace the 10% paid-subscription revenue cut with predictable flat pricing"},{"t":"Add robust growth tooling","m":["Grok"],"q":"Add robust automations, segmentation"},{"t":"Improve branding and SEO ownership","m":["Grok"],"q":"better custom branding/SEO ownership"}]},"entries":[{"slug":"best-newsletter-platform","title":"Best newsletter platform","rank":2,"of":6,"score":15,"appearances":4,"modelRanks":{"ChatGPT":3,"Claude":2,"Gemini":2,"Grok":2},"reason":"Unmatched built-in discovery (Notes, recommendations, app) means writers grow from zero without an audience, zero upfront cost, and the strongest brand for paid subscriptions among readers","reasons":[{"model":"Claude","reason":"Unmatched built-in discovery (Notes, recommendations, app) means writers grow from zero without an audience, zero upfront cost, and the strongest brand for paid subscriptions among readers"},{"model":"Gemini","reason":"The lowest friction setup for starting a paid publication combined with a powerful built-in discovery network (Notes and recommendations) that drives high organic growth."},{"model":"Grok","reason":"Easiest for writers to start publishing and build community with built-in discovery, seamless paid subscriptions, and social-like features that help new creators gain visibility fast"},{"model":"ChatGPT","reason":"Easiest path for writers to launch, charge readers, and gain discovery through its recommendation network, app, Notes, podcasts, video, and built-in community"}],"fixes":[{"model":"ChatGPT","fix":"Replace the 10% paid-subscription revenue cut with predictable flat pricing"},{"model":"Claude","fix":"Replace the flat 10% cut of paid revenue with a capped or tiered fee — successful writers outgrow the economics fast and churn to owned-stack alternatives."},{"model":"Gemini","fix":"Eliminate or reduce the flat 10% revenue share fee for high-earning creators in favor of flat-rate tier pricing."},{"model":"Grok","fix":"Add robust automations, segmentation, and better custom branding/SEO ownership to compete on professional growth"}],"updated":"2026-07-10","rank_history":{"days":["2026-07-07","2026-07-08","2026-07-09","2026-07-10"],"ranks":[2,2,2,3]},"reasoning_shift":[{"model":"ChatGPT","from":"2026-07-07","to":"2026-07-10","added":[{"t":"App and Notes","q":"app, Notes"},{"t":"Predictable flat pricing","q":"predictable flat pricing"}],"dropped":[{"t":"Trust around platform moderation","q":"rebuild trust around platform moderation"}]}],"api":"https://modelsagree.com/api/v1/best/best-newsletter-platform.json"},{"slug":"best-newsletter-platform-for-developers","title":"Best newsletter platform for developers","rank":4,"of":7,"score":7,"appearances":4,"modelRanks":{"ChatGPT":5,"Claude":3,"Gemini":5,"Grok":4},"reason":"Zero cost until you monetize, built-in recommendations network that genuinely drives subscriber discovery, and frictionless paid subscriptions — the fastest path from nothing to a paying technical audience, which keeps it ranked despite weak dev ergonomics","reasons":[{"model":"Claude","reason":"Zero cost until you monetize, built-in recommendations network that genuinely drives subscriber discovery, and frictionless paid subscriptions — the fastest path from nothing to a paying technical audience, which keeps it ranked despite weak dev ergonomics"},{"model":"Grok","reason":"Extremely easy onboarding, built-in discovery, payments, and audience tools; handles technical writing adequately with good formatting; massive network effects for visibility in tech circles."},{"model":"ChatGPT","reason":"Fastest route from zero to a functioning free-or-paid publication, with frictionless publishing, payments, comments, recommendations, Notes, podcasts, and meaningful built-in discovery"},{"model":"Gemini","reason":"The lowest friction, zero-cost setup with a built-in recommendation engine for discovery, making it ideal for writers who want to publish without configuring any tech stack."}],"fixes":[{"model":"ChatGPT","fix":"The 10% paid-subscription fee and limited control over design, automation, and site architecture make it a poor long-term fit for technically demanding or high-revenue publishers"},{"model":"Claude","fix":"Poor fit for technical content itself — clumsy code formatting, no markdown editor or API, 10% revenue cut, and your growth rides on a platform whose network and policies you don't control"},{"model":"Gemini","fix":"Offers no developer API, custom CSS styling, or Markdown-first editing, giving writers no programmatic control over their platform."},{"model":"Grok","fix":"Platform takes 10% revenue cut and owns the relationship/data to some degree; less flexible for custom dev integrations or full export control (not for those prioritizing independence or avoiding platform dependency)."}],"updated":"2026-07-15","rank_history":{"days":["2026-07-07","2026-07-08","2026-07-09","2026-07-10","2026-07-14","2026-07-15"],"ranks":[3,null,4,5,4,4]},"reasoning_shift":[{"model":"ChatGPT","from":"2026-07-14","to":"2026-07-15","added":[{"t":"podcasts","q":"podcasts"},{"t":"10% paid-subscription fee","q":"The 10% paid-subscription fee"},{"t":"high-revenue publishers","q":"high-revenue publishers"}],"dropped":[{"t":"analytics","q":"analytics"},{"t":"independently branded stack","q":"independently branded stack"}]},{"model":"Claude","from":"2026-07-14","to":"2026-07-15","added":[{"t":"clumsy code formatting","q":"clumsy code formatting"},{"t":"no markdown editor","q":"no markdown editor"},{"t":"policies you don't control","q":"policies you don't control"}],"dropped":[{"t":"Almost no customization","q":"Almost no customization"},{"t":"the app drive discovery","q":"the app drive discovery"},{"t":"no other platform matches","q":"no other platform matches"}]}],"api":"https://modelsagree.com/api/v1/best/best-newsletter-platform-for-developers.json"}],"page":"https://modelsagree.com/product/substack","check":"https://modelsagree.com/check?q=Substack","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}