Case Study
View Case StudyTray.ai
Migrating hundreds of thousands of pages, re-platforming and extending for the leading composable AI integration platform
From Prismic to Sanity
We are the Prismic to Sanity migration experts
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Challenges with Prismic
Key pain points
We have a long history with Prismic, and at one point, we were agency partners, so count us as biased. However, if you're anything like us, we've had an absolutely terrible experience with Prismic.
They've historically changed their API ad hoc, resulting in many broken websites, which is especially bad for an agency. They've dumped infrastructure on the community, resulting in expensive migration bills and client dissatisfaction and they've updated their system with no way to migrate other than to rebuild your entire website for literally years.
If you're having a hell of a time, we can help you move away and do it without breakages. We've had to migrate quite a few folks and we have a standardised process that lets us migrate images, videos, text and content structure to the platform of your choice.
Dependency on third-party hosting
You don’t control the infrastructure, Prismic does. So you’re tied to their uptime, limits, and CDN behaviour.
Limited native integrations
Most serious integrations require extra tooling or custom code because Prismic’s built-in ecosystem is pretty thin.
Steep learning curve
Slices, custom types, and the editor workflow take time to understand, especially for teams new to component-driven CMS structures.
Lack of built-in versioning
There’s no full document history or global rollback, meaning mistakes are harder to recover from without workarounds.
Escalating pricing model
Costs jump fast as you add seats, locales, or repositories, making it expensive to scale a growing content team.
Limited out-of-box features
Beyond basic content creation, most advanced needs require custom development, external tools, or plugins.
Benefits of Sanity
Key advantages
You know where our bias' lies. We think Sanity is literally the best headless content management out there. The schema is code-based, so it can be easily versioned, scaled, and extended without a heap of third-party hoops to jump. Providing you build it with a solid foundation, which we always recommend Turbo Start Sanity, it's going to be the most valuable hub for content you can imagine.
It's got a very unique tooling called the Live Content API, which in simple terms means
when you press publish, its live.
No issues with caching, and a single API usage that scales perfectly with multichannel content delivery.
It also offers one of the best editorial experiences in the industry with Presentation and customizable content structures. We're obviously huge fans of it, and we've pivoted our business with it when we realised how ahead it is.
Real time collaboration
You write, your teammate tags in, adds citations, and updates the same doc without stepping on each other. It’s the fastest way to ship content without the “who has edit access?” chaos.
Live preview block building
With Sanity, you don’t have to guess what your page might look like. Real-time previews update the moment you type. It’s a 1:1 mirror of your site before it ever goes live, so your campaigns look right the first time.
Meta tags, structured content
Sanity’s structured content gives Google clean data and rich schema, so your pages surface higher without manual hacking. Automated schema, smarter metadata, and better rankings.
Better media management
A blazing-fast media library with first-class support for Cloudinary, Mux, Wistia and more. Upload, drag-and-drop, preview without wrestling with assets, and waiting for spins of doom.
Automated social sharing
Ever wanted to share one update, and automatically populate every social platform? Welcome to the future we've built that. Why should social media be a chore.
Automated image generation
Sanity keeps your subject centred and sharp like a tiny author thumbnail or a full-page hero banner. There are no awkward crops, or chopped heads. Your visuals just look right everywhere.
Common questions
Prismic to Sanity migration FAQs
Answers to the most common questions about Prismic to Sanity migration
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.
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.
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