Daytona vs Cloudflare Sandbox SDK
Answer in brief
Choose Daytona for long-lived, stateful agent workspaces that need many SDK languages, GPUs, or Windows and macOS sandboxes; choose Cloudflare Sandbox SDK for teams building on Cloudflare Workers that want per-user sandboxes with egress and credentials controlled in code. Daytona uses Containers or VMs isolation; Cloudflare Sandbox SDK uses MicroVM (Containers) isolation and is open source.
Daytona vs Cloudflare Sandbox SDK at a glance
| Attribute | Daytona | Cloudflare Sandbox SDK |
|---|---|---|
| What it is | Stateful sandboxes for AI-generated code — Linux containers, Linux and Windows VMs, macOS and GPU sandboxes — with snapshots, volumes and preview URLs. | A TypeScript SDK for Cloudflare Workers that runs untrusted code in Linux sandboxes backed by Cloudflare Containers and Durable Objects. |
| Isolation | Isolated Linux containers (dedicated namespaces, resource limits) by default; VM sandboxes (Linux, Windows) run a full VM with their own kernel; GPU sandboxes are containers with exclusive GPU allocation | Each container instance is a microVM with its own kernel and network (per Cloudflare docs); Dynamic Workers (V8 isolates) available for JavaScript-only code |
| Open source | No (Former public repo archived (AGPL-3.0)) | Yes (SDK Apache-2.0 (runs only on Cloudflare)) |
| Self-host / BYOC | Not documented / Yes | No / No |
| SDKs | Python, TypeScript, Ruby, Go, Java | TypeScript (Workers) |
| Cold start (vendor claim) | Sub-90 ms sandbox creation (vendor claim) | Container cold starts “often in the 1–3 second range” depending on image (vendor docs) |
| Max session | No hard maximum: auto-stop after 15 min idle by default (can be disabled), auto-archive after 7 days stopped, optional wall-clock TTL | No fixed cap; runs while its Durable Object is active, then up to a 6-hour inactivity timeout |
| Persistence | Stateful sandboxes, snapshots, shared volumes, archive/recover and stop/start with state. Pause/resume, fork and hot snapshots on VM sandboxes | Ephemeral disk by default; container snapshots (up to 20 GB, 30 days), directory backups to R2, S3/R2 bucket mounts and Durable Object storage |
| GPU | Yes — up to 8 GPUs per sandbox (e.g. H100 from $2.27/hour, B200 $3.59/hour, preemptible list rates) | Not documented |
| Networking | Tiered egress: per-sandbox CIDR and domain allowlists or block-all, changeable at runtime; preview URLs for any port with token or signed URLs; SSH, VNC and web terminal | Egress controlled from Worker code: disable internet and intercept outbound HTTP to allow specific hosts and inject credentials; preview URLs routed through your Worker |
| Pricing | Per second: $0.0504 per vCPU-hour + $0.0162 per GiB-hour; storage $0.000108/GiB-hour after 5 GiB free; Windows $0.0858/vCPU-hour | Cloudflare Containers rates in 10 ms increments: $0.000020 per vCPU-second (active) + $0.0000025 per GiB-second + disk; requires the $5/month Workers Paid plan |
| Compliance | States HIPAA, SOC 2 and GDPR compliance (Trust Center) | Not documented |
| Best for | Long-lived, stateful agent workspaces that need many SDK languages, GPUs, or Windows and macOS sandboxes | Teams building on Cloudflare Workers that want per-user sandboxes with egress and credentials controlled in code |
Verified November 8, 2026 from each provider’s documentation. Cold-start figures are vendor claims, not our measurements.
Which should you choose?
Choose Daytona if…
- You need long-lived, stateful workspaces that survive between sessions
- You want SDKs beyond Python and TypeScript (Ruby, Go, Java)
- You need GPUs, Windows or macOS sandboxes from the same provider
- You want BYOC on your own compute
Choose Cloudflare Sandbox SDK if…
- You build on Cloudflare Workers and Durable Objects
- You want egress and credentials controlled in your own code
- You want global placement on Cloudflare’s network
- You want a lighter isolate option for JS-only code
Both are worth piloting with your own image and region. See the full Daytona profile and Cloudflare Sandbox SDK profile, or the complete comparison.
Frequently asked questions
Is Daytona or Cloudflare Sandbox SDK better for AI agents?
Neither is better for every workload. Daytona is best for long-lived, stateful agent workspaces that need many SDK languages, GPUs, or Windows and macOS sandboxes. Cloudflare Sandbox SDK is best for teams building on Cloudflare Workers that want per-user sandboxes with egress and credentials controlled in code.
Which is open source, Daytona or Cloudflare Sandbox SDK?
Cloudflare Sandbox SDK is open source (SDK Apache-2.0 (runs only on Cloudflare)); Daytona is not.
How do Daytona and Cloudflare Sandbox SDK isolate code?
Daytona: Isolated Linux containers (dedicated namespaces, resource limits) by default; VM sandboxes (Linux, Windows) run a full VM with their own kernel; GPU sandboxes are containers with exclusive GPU allocation. Cloudflare Sandbox SDK: Each container instance is a microVM with its own kernel and network (per Cloudflare docs); Dynamic Workers (V8 isolates) available for JavaScript-only code.
Sources
Cite this page
Agent Sandboxes. (2026). Daytona vs Cloudflare Sandbox SDK. agentsandboxes.org. Last reviewed November 8, 2026. https://agentsandboxes.org/compare/daytona-vs-cloudflare-sandbox/
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