Ghost Is a Publishing Platform. Cosmic Is a Headless CMS.
Ghost does one thing well: blogging and newsletters. It ships with a beautiful editor, solid email delivery, and a subscription model baked right in. For a solo writer or newsletter business, it is genuinely excellent.
But if you are a developer building a content-driven product, or a content team that needs to manage more than posts and newsletters, Ghost will start to hold you back fast.
Here is the core problem: Ghost was designed as a publishing platform first. Its Content API gives you read access to posts, pages, tags, and authors. That is it. You cannot define custom content types, query arbitrary structured data, or use it as the content backbone for a complex frontend application.
Cosmic was designed from the ground up as a headless CMS. It is built for teams who need to model any content structure they can imagine, deliver it via a REST API and JavaScript SDK, and connect AI agents and automated workflows to the entire content lifecycle.
What Ghost Cannot Do (That Cosmic Can)
1. Custom Content Modeling
In Ghost, your content lives in a fixed structure: posts, pages, tags, authors. You cannot create a "Product," "Event," "Team Member," or "Case Study" type with custom fields and relationships.
In Cosmic, you define Object Types with any metafields you need: text, rich text, files, dates, booleans, relationships between types, repeater groups, and more. Your content model is yours to design.
2. A Real REST API for Every Content Type
Ghost's Content API serves its built-in types only. You cannot query custom content over HTTP in a structured way, and there is no SDK built for modern JavaScript frameworks.
Cosmic gives you a full REST API for every Object Type you create, plus a JavaScript SDK optimized for Next.js, React, Vue, Nuxt, Astro, Remix, Svelte, and Gatsby. Fetch exactly the content you need with clean, predictable endpoints.
3. AI Agents and Automated Workflows
Ghost has no concept of AI agents or content automation. You write, you publish. End of story.
Cosmic has AI Agents built into the platform. You can set up agents that generate content drafts, update Objects on a schedule, run multi-step workflows, and connect to external APIs. Free plans get 3 agents. Paid plans get up to 25, with scheduling.
4. Structured Media with imgix CDN
Ghost serves media, but it is not a media delivery platform. You get file uploads with size limits (5 MB on Starter, up to 1 GB on Custom) and basic serving.
Cosmic integrates imgix for every image you upload. That means automatic resizing, format conversion (WebP, AVIF), lazy loading helpers, and a global CDN optimized for speed. Your media is a first-class API resource, not just a file attachment.
5. Multi-Bucket, Multi-Project Architecture
Ghost is one site, one database, one publishing destination. If you manage multiple brands, products, or clients, you need multiple Ghost instances.
Cosmic organizes content into Buckets. Paid plans support multiple Buckets under one account, each with its own content model, API keys, and team members. Manage everything from one dashboard.
6. Team Collaboration Without Rebuilding Permissions From Scratch
Ghost's staff user model is tied to its publishing workflow. You get roles like Editor and Author, but only in the context of Ghost's post pipeline.
Cosmic lets you invite team members, assign them to Buckets, and control access across any content type your team manages. Additional users are $29/user/month across all plans.
Ghost Pricing vs. Cosmic Pricing
Ghost Pro plans are based on your audience size (number of email members) and billed yearly:
| Ghost Plan | Price (yearly billing) | Staff Users | Members |
|---|---|---|---|
| Starter | $18/mo | 1 | 1,000 |
| Publisher | $29/mo | 3 | 1,000 |
| Business | $199/mo | 15 | 10,000 |
| Custom | Contact sales | Unlimited | Unlimited |
Note: Ghost pricing scales with your member count. At 10,000+ members, you move into Business territory at $199/month.
Cosmic pricing is based on your project needs, not your audience size:
| Cosmic Plan | Price | Buckets | Team Members | Objects |
|---|---|---|---|---|
| Free | $0/mo | 1 | 2 | 1,000 |
| Builder | $49/mo | 2 | 3 | 5,000 |
| Team | $299/mo | 3 | 5 | 20,000 |
| Business | $499/mo | 5 | 10 | 50,000 |
| Enterprise | Custom | Custom | Custom | Custom |
Additional users: $29/user/month on any plan.
The key difference: with Ghost, your bill goes up as your newsletter grows. With Cosmic, you pay for capability, not audience size.
Who Should Move from Ghost to Cosmic
You are probably outgrowing Ghost if:
- You need to manage content types beyond posts and pages (products, events, docs, team bios, etc.)
- Your frontend team uses Next.js, Astro, Nuxt, Remix, Svelte, or another modern framework and needs a proper API
- You want to automate parts of your content pipeline with AI agents or scheduled workflows
- You manage multiple sites or brands and want one content platform, not multiple instances
- You need images served through a CDN with on-the-fly transforms, not just file uploads
- Your team has roles and permissions needs that go beyond "Author" and "Editor"
You should stick with Ghost if:
- You run a solo newsletter or blog and publishing is your entire workflow
- You do not need a custom frontend or framework integration
- Paid subscriptions and membership management are core to your business
Frameworks Supported by Cosmic
Cosmic works with every major JavaScript framework:
Next.js | React | Vue | Nuxt | Astro | Remix | Svelte | Gatsby
Each framework has starter templates, documentation, and SDK examples to get you running fast.
How to Migrate from Ghost to Cosmic
Migrating your content from Ghost to Cosmic takes a few steps:
- Export your Ghost content using Ghost's built-in export tool (Settings > Labs > Export)
- Create your Object Types in Cosmic to match your content structure
- Import your content using the Cosmic REST API or bulk import tools
- Update your frontend to use the Cosmic JavaScript SDK
- Configure your media to serve through imgix CDN
For a detailed walkthrough of each step, read our step-by-step migration guide.
For teams on Business or Enterprise plans, Cosmic provides migration assistance to help you move without downtime.
Start Free. No Credit Card Required.
Cosmic's Free plan gives you one Bucket, 2 team members, 1,000 Objects, and 3 AI Agents to get started. No time limit, no credit card.
When you are ready to scale, paid plans start at $49/month.
Start for free at cosmicjs.com
Want to talk through your migration or see Cosmic in action? Book a demo with Tony
