Sanity vs Fly.io

Structured content platform — headless CMS with real-time + GROQ
vs. Run your app close to users, globally

Pricing tiers

Sanity

Free

20 seats. 2 public datasets. 10K documents. 250K API req + 1M CDN req/month. Content Agent + live preview + visual editing.

Free

Growth

$15 per seat/month. 50 seats. 2 datasets (public or private). 25K docs. Same API limits + pay-as-you-go overages.

$15/mo

Enterprise

Custom. SAML SSO, Media Library, dedicated support, 99.99% SLA.

Custom

Sanity website ↗

Fly.io

Pay-as-you-go

No monthly fee. Machines billed per second. Free allocations: ~3 small shared machines + 3 GB volumes.

$0 base (usage-based)

Shared CPU 1x — 256 MB

Entry VM. 1 shared vCPU, 256 MB RAM. ~$2.02/month continuously on.

$2/mo

Performance 1x — 2 GB

Dedicated 1 vCPU, 2 GB RAM.

$32/mo

Reservation — Shared (1 yr)

$36/year for $5/mo credit (40% savings).

$36/mo

Shared CPU 8x — 16 GB

8 shared vCPU, 16 GB RAM.

$89/mo

Performance 16x — 128 GB

Dedicated 16 vCPU, 128 GB RAM.

$1014/mo

Enterprise

Custom. Dedicated capacity, SLA.

Custom

Fly.io website ↗

Free-tier quotas head-to-head

Comparing free on Sanity vs pay-as-you-go on Fly.io.

Metric	Sanity	Fly.io
No overlapping quota metrics for these tiers.

Features

Sanity · 16 features

Agent Context — Expose your content schema + docs to LLM agents.
Content Agent (AI) — AI assistant inside Studio for generation + translation.
Content History — Every change versioned. Rollback + diff.
Content Lake — Distributed real-time DB for structured content. Multi-region replicas.
Datasets — Logical content partitions (stage/prod/etc.). Easy cloning.
GROQ — Graph-Relational Object Queries — JSON-native query language.
Image CDN — Smart transforms (crop, format, quality) via URL params.
Internationalization — Multiple locales per document with native i18n plugins.
Live Previews — Draft previews with stega-encoded content.
Media Library (Ent) — Org-wide media with DAM features.
Portable Text — Structured rich text format (JSON). Portable across channels.
Real-Time Collaboration — Live presence + collaborative editing.
Sanity Studio — Open-source React editor — customize with your own components + workflow.
Scheduled Publishing — Schedule content to publish at a future date.
Visual Editing — Click-to-edit inline on your Next.js/etc. website.
Webhooks — Events on create/update/delete with GROQ filter.

Fly.io · 14 features

Auto Stop/Start — Machines auto-stop when idle, start on request (like scale-to-zero).
Certs — Let's Encrypt + wildcard certs managed.
Fly GPU — A100/L40S/A10 on-demand GPU machines.
Fly Kubernetes (FKS) — Managed Kubernetes on Fly machines.
Fly Machines — Firecracker microVMs. Start in <1s. Run any Docker image.
Fly Postgres — Managed Postgres via Supabase partnership (2024). Also legacy self-run Postgres …
fly-replay headers — Route request to another region at app level.
Fly Volumes — Persistent SSD attached to a Machine. Encrypted at rest.
Global Anycast — Single IP routes to the closest region automatically.
LiteFS — Distributed SQLite with primary/replica across regions.
Private Networks — 6PN WireGuard mesh. Connect machines across regions privately.
Secrets — Encrypted env vars propagated to all regions.
Tigris (partner) — S3-compatible storage for Fly apps. By partner.
Upstash Redis (partner) — Managed Redis via Upstash.

Developer interfaces

Kind	Sanity	Fly.io
CLI	Sanity CLI	flyctl CLI
SDK	@sanity/client, sanity-python, @sanity/ui + next-sanity	—
REST	Image CDN, Sanity HTTP API	Machines API
GRAPHQL	—	Fly GraphQL API
MCP	Sanity MCP	—
OTHER	GROQ Query Language, Webhooks	Fly Postgres (wire)

Staxly is an independent catalog of developer platforms. Some links to Sanity and Fly.io may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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