Modal Sandboxes
Modal's Sandboxes API runs untrusted code in gVisor-isolated containers on Modal's serverless cloud, with GPU access. For Python-first teams that already use Modal or need GPUs next to agent code.
- 2 vCPU + 4 GiB
- $0.238/hr 1.44x E2B
- Isolation
- gVisor
- Pause / resume
- Not published
- Max session
- 5 min default, up to 24 h
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Priced next to Modal Sandboxes
All providers against E2B| Provider | 2 vCPU + 4 GiB$/hr | vs E2B | Relative cost | Isolation |
|---|---|---|---|---|
| Google Agent Platform Code Execution | $0.206 (source: Google Cloud Agent Platform pricing) | 1.24x | — | |
| Amazon Bedrock AgentCore Code Interpreter | $0.217 (source: Amazon Bedrock AgentCore Pricing) | 1.31x | microVM | |
| Modal Sandboxes | $0.238 (source: Modal Pricing) | 1.44x | gVisor | |
| Runloop | $0.317 (source: Runloop Pricing) | 1.91x | VM | |
| Vercel Sandbox | $0.341 (source: Vercel Sandbox pricing and quotas) | 2.06x | Firecracker microVM |
Every field
Source on each value- Isolation Isolation technology the vendor states for each sandbox.
- gVisor (source: Modal Sandboxes guide)
- Other isolation options Alternative runtimes the vendor offers besides the default (e.g. VM runtime, gVisor for GPU).
- VM runtime with its own Linux kernel (no GPU) (source: Modal Sandboxes guide)
- Deployment Managed cloud service, self-hosted software, or both.
- managed (source: Modal Pricing)
- Billing basis What the meter counts: wall-clock allocated resources, active CPU only, requests/plan quota, session-hours, or free software.
- wall clock (source: Modal Pricing)
- vCPU price $/vCPU-hr Published on-demand CPU rate normalised to USD per vCPU-hour (per-second rates multiplied by 3,600; per-core rates divided by vCPUs per core where the vendor defines it). Lowest public tier, default region.
- $0.071 (source: Modal Pricing)
- Memory price $/GiB-hr Published memory rate normalised to USD per GiB-hour (GB treated as GiB where the vendor does not distinguish). 0 means the vendor states memory is free.
- $0.024 (source: Modal Pricing)
- Sandbox from $/sandbox-hr Smallest published per-sandbox hourly price, where the vendor publishes one.
- Not published
- Paid plan from $/mo Cheapest paid platform plan fee (before usage).
- $250.00 (source: Modal Pricing)
- Free tier A free plan, free monthly allowance or sign-up credit exists.
- Yes (source: Modal Pricing)
- Free tier detail What the free tier or credit includes, as published.
- Starter: $0 plan with $30/month free compute credits. (source: Modal Pricing)
- Cold start ms Vendor-published create/boot time in milliseconds. Only filled when the vendor publishes a number; see startup_claim for context (percentile, conditions).
- Not published
- Resume time ms Vendor-published resume-from-pause/standby/snapshot time in milliseconds.
- Not published
- Startup claim The vendor's startup/resume wording with conditions, quoted or closely paraphrased.
- Not published
- Max session length Longest single sandbox session by plan, as published.
- 5 min default, up to 24 h (source: Modal Sandboxes guide)
- Persistence / snapshots Filesystem state can be kept between runs (snapshots, persistent disks, volumes).
- Yes (source: Modal Pricing)
- Pause / resume A sandbox can be paused, suspended, hibernated or put in standby and resumed later.
- Not published
- Memory state kept Pause/hibernate preserves running memory state, not only the filesystem.
- Not published
- Fork / branch A running or snapshotted sandbox can be cloned into new sandboxes.
- Not published
- GPU GPU sandboxes are offered.
- Yes (source: Modal Sandboxes guide)
- Self-host Can run on your own hardware or cluster (open source or licensed).
- Not published
- BYOC / VPC Vendor-managed deployment inside your own cloud account.
- Not published
- Open source Core sandbox runtime is published under an open-source licence.
- Not published
- Licence Open-source licence of the runtime, if any.
- Not published
- SDKs / languages Official SDK languages (or supported execution languages where noted).
- Python, JavaScript, Go (source: Modal Pricing)
- Regions Published regions or region count.
- Not published
- Max vCPU per sandbox vCPU Largest published vCPU count per sandbox on any self-serve or enterprise plan.
- Not published
- Max memory per sandbox GiB Largest published memory per sandbox.
- Not published
- Concurrency Published concurrent sandbox limits by plan.
- Not published
- SOC 2 SOC 2 status as stated by the vendor.
- Type II (source: Modal security and privacy)
- HIPAA Vendor offers HIPAA-compliant usage/BAA (on any plan).
- Yes (source: Modal Pricing)
- Pricing from
- $0.071 per vCPU-hour
- Pricing as published
- Sandboxes billed at non-preemptible rates (3x list): $0.00003942 per physical core-second (1 core = 2 vCPU) and $0.00000667/GiB-s; normalised to $0.071/vCPU-h and $0.024/GiB-h. HIPAA on Enterprise only. Pricing checked 2026-11-09.
Sources
- Modal Pricing accessed 2026-11-09
- Modal Sandboxes guide accessed 2026-11-09
- Modal security and privacy accessed 2026-11-09
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