Case Study
View Case StudyTray.ai
Migrating hundreds of thousands of pages, re-platforming and extending for the leading composable AI integration platform
From Sanity to Prismic
We are the Sanity to Prismic migration experts
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Challenges with Sanity
Key pain points
We obviously prefer Sanity, so much so that our own website is on Sanity. But if you don't have the right implementation team, you might find yourself in a bad situation. Its highly customizable nature can lead to complexity and time-consuming setup processes for less experienced developers. We've inherited our fair share of stinkers, but we advise that before you jump ship, you let us look over it to see if it's salvageable.
That said, if you are considering moving, we can help you migrate away with automated migration scripts, web scraping, and content mapping. It'll be a 1:1 with whatever platform you choose.
Not always plug-and-play
Sanity gives you a ton of flexibility, but it’s not a “drag-and-drop” CMS. If your team prefers instant themes and presets, you’ll need a little extra setup to get started.
Potentially high resource demand
As your content model grows, Sanity gives you incredible power and real-time performance. Just keep in mind that very large projects may require a bit more horsepower behind the scenes.
Less ideal for beginners
Editors love Sanity once everything is set up, but teams switching from traditional CMSs may need a short onboarding period to learn the workflow.
Infrastructure management needed
Unlike hosted CMS platforms, you own your content pipeline. That gives you full control and scalability, but also means setup and environments need to be managed properly.
Technical skill required
Since Sanity is schema-driven, developers can model content precisely the way your business needs it. Non-technical teams benefit from that structure, but setup usually requires engineering support.
Complexity in setup
Sanity doesn’t force rigid templates or assumptions. You have to define everything like content, structure, and workflows. The tradeoff: a bit more initial setup for much more flexibility long-term.
Benefits of Prismic
Key advantages
Prismic is phenomenal for simplistic page-builder-style websites. Its simplistic drag-and-drop page builder, along with the newer code-based version, helps you generate like-for-like components and automates the developers' process.
The built-in media optimisation tool is also great, so you can ensure that even if you're uploading 4mb images, they're going to be scaled down with minimal compression artefacts.
Content scheduling capabilities
Prismic makes it ridiculously easy to plan content ahead with built-in scheduling without any plugins or workarounds. Just pick a time, hit schedule, and your release goes live exactly when you want it.
Intuitive visual editor
The editor feels natural even for non-technical teams, with clean previews and simple fields. It keeps the writing flow distraction-free while still giving developers structure.
Efficient slices feature
Slices let you build repeatable, flexible components that marketers can rearrange without breaking layouts. It’s the closest thing to structured Lego-blocks for content teams.
Rich media embedding
Embedding images, videos, and rich assets takes seconds. You don't need to hack templates. Just paste, pick, and publish.
Flexible component reuse
Developers create once, marketing teams reuse forever. Slices and custom types make content scalable without adding complexity.
Seamless publishing experience
Publishing is fast, predictable, and drama-free. If you want to do a small tweak or a full-page release, everything ships smoothly with minimal cognitive load.
Common questions
Sanity to Prismic migration FAQs
Answers to the most common questions about Sanity to Prismic migration
Why should we migrate to Sanity instead of another headless CMS?
Sanity's Live Content API means content goes live the instant you press publish, with zero caching issues. We've migrated teams from WordPress, Contentful, Drupal, and legacy platforms, and the consistent feedback is that the editorial experience is faster and more flexible. The schema-as-code approach means your content model is version-controlled alongside your codebase. Pricing starts free for small teams and scales predictably, unlike platforms that hit you with surprise API overage bills.
What does a migration to Sanity actually involve?
A typical migration has three phases. First, we map your existing content model to a Sanity schema, which usually takes 1 to 2 weeks depending on complexity. Second, we build automated migration scripts that transfer your content, media assets, and relationships. Third, we set up the frontend integration and editorial workflows. For a mid-sized site with 500 to 2,000 pages, the full process usually runs 4 to 8 weeks. We use our Turbo Start Sanity foundation to accelerate the setup so you're not starting from zero.
How long does it take before our content team is productive in Sanity?
Most editors are comfortable within the first week. Sanity's Presentation tool gives them a side-by-side live preview that feels intuitive, especially for teams used to visual page builders. The real-time collaboration means multiple editors can work on the same document without conflicts. We typically run a 2-hour onboarding session and provide a custom guide tailored to your specific content model. After that, editors rarely need developer support for day-to-day publishing.
How much does Sanity cost?
Sanity's Free plan includes 20 user seats, 10,000 documents, 1M CDN API requests, 250K regular API requests, 100GB of assets, and unlimited locales. The Growth plan is $15 per seat/month with 25,000 documents and the same API allowances, plus pay-as-you-go overages and 5 roles including Editor, Developer, and Contributor. Enterprise pricing is custom for organisations that need custom roles, SLAs, or private datasets. Most mid-size teams we work with stay well inside Growth's limits.
How much does Prismic cost?
Prismic has a free plan for 1 user with limited API calls. The Starter plan is $7/month per user for small teams. The Small plan is $150/month for up to 25 users with more locales and API bandwidth. Medium is $500/month. Large and Enterprise plans go higher. The pricing jumps are significant once you need multiple locales or repositories. We've had clients hit the ceiling on the Small plan faster than expected because of how Prismic counts API calls and custom types.
What are the best Prismic alternatives?
Sanity is the alternative we recommend most. It gives you better content modelling, real-time collaboration, and a query language (GROQ) that's far more flexible than Prismic's API. Contentful is another option with a bigger ecosystem, though pricing is steeper. If you liked Prismic's Slices concept, Sanity's block-based content approach works similarly but with more depth. We've migrated multiple former Prismic agency partners to Sanity, and the developer experience improvement is always the first thing they mention.
Can I migrate from Prismic to another CMS?
Yes. We've migrated quite a few Prismic projects, mostly to Sanity. We export your custom types, documents, and media through Prismic's API, then restructure everything for the target platform. Prismic's Slice-based content maps well to Sanity's portable text and block system. Typical migrations take 3-5 weeks. We keep your existing Prismic site live throughout, so there's no downtime. The biggest challenge is usually handling Prismic's media library, since images need to be moved to a new CDN.
Is Prismic a good CMS for developers?
It's decent for simple projects. The Slice Machine tooling is clever and the TypeScript support has improved. But Prismic's API has limitations that frustrate developers on bigger projects. You can't do complex queries, filtering is basic, and the content modelling is shallow compared to Sanity or Contentful. The bigger issue is Prismic's track record of breaking API changes and infrastructure shifts that have caused production outages. Developers who need reliability and deep customization are better served elsewhere.
Why are teams leaving Prismic?
The main reasons we hear are API instability, limited content modelling depth, and pricing that doesn't match the feature set. Prismic has a history of making breaking changes to their API and infrastructure without adequate migration paths. One major version change left agencies (including us, when we were partners) with broken client sites and expensive rebuild bills. Teams also outgrow the content modelling quickly. Once you need complex relationships between content types, Prismic's flat structure becomes a bottleneck.
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