Head to head
E2B vs Fly.io Sprites: prices, plans and limits (Nov 2026)
E2B and Fly.io Sprites side by side for agent sandboxes: 22 terms differ. Every value links to the provider's own page.
Agent sandboxes
| Term | E2B | Fly.io Sprites |
|---|---|---|
| Price | $0.0504 /vCPU-h+ $0.0162 per GB-hour | $0.0385 /vCPU-h+ $0.0219 per GB-hour |
| 1-hour session | ≥ $0.1662 vCPU / 4 GB · rank 16 of 28 | ≥ $0.1642 vCPU / 4 GB · rank 13 of 28 |
| Fleet month | ≥ $1,60750 × 8 h × 22 days · on Pro | ≥ $1,44850 × 8 h × 22 days |
| PaymentBilling | Metered: usage billed afterwards[1] | Metered: usage billed afterwards[2] |
| Plan minimumBilling | None[1] | None[2] |
| Billing incrementBilling | Per second[1] | unknown[2] |
| Minimum chargeBilling | unknown[1] | unknown[2] |
| Per-job feeBilling | None[1] | None[2] |
| Billed onRuntime | Running time[1] | Active CPU[2] |
| IsolationRuntime | Firecracker microVM[1] | Firecracker microVM[2] |
| Max sessionRuntime | 1 h[1] | unknown[2] |
| Concurrent sandboxesRuntime | 20[1] | unknown[2] |
| StartsRuntime | 60/min, then refused[3] | 10/min, then refused[4] |
| Largest vCPURuntime | 8[1] | 8[2] |
| Largest memoryRuntime | 8 GB[1] | unknown[2] |
| Survives a stopLifecycle | Disk and memory[5] | Disk[6] |
| SnapshotsLifecycle | Yes[5] | Yes[6] |
| Pause and resumeLifecycle | Yes[5] | Yes[6] |
| ForkLifecycle | Memory and processes[5] | No[6] |
| Compute billed while stoppedLifecycle | No[5] | No[6] |
| Auto-stopLifecycle | after 5 min[5] | unknown[6] |
| Start time (vendor claim)Lifecycle | 150 ms[5] | 2 s[6] |
| GPUCapabilities | No[7] | No[8] |
| DesktopCapabilities | Computer-use API[7] | None[8] |
| Coding agents installedCapabilities | Amp, Claude Code, Codex, Devin, Droid, Grok Build, Hermes, Muse Code, OpenCode, Pi, Prime Agent[7] | Claude Code, Gemini CLI, Codex, Cursor[8] |
| Agent prompt APICapabilities | No[7] | No[8] |
| SSHCapabilities | Yes[7] | Yes[8] |
| Docker insideCapabilities | Yes[7] | unknown[8] |
| SDKsCapabilities | Python, TypeScript, CLI, REST[7] | TypeScript, Python, Go, CLI, REST, MCP[8] |
| SOC 2Capabilities | Yes[7] | Yes[8] |
| Disk includedStorage and network | 10 GB[9] | None[10] |
| Extra diskStorage and network | Free[9] | $0.02 per GB-month[10] |
| Snapshot storageStorage and network | unknown[9] | unknown[10] |
| EgressStorage and network | unknown[9] | Free[10] |
| RegionsPlatform | us-west-1, us-west-2, eu-west-1, ap-southeast-1[11] | unknown[6] |
| Your cloud (BYOC)Platform | Yes[11] | No[6] |
| Self-hostPlatform | Yes[11] | No[6] |
| Minutes a monthFree allowance | None[9] | None[2] |
| Credit a monthFree allowance | None[9] | None[2] |
| One-time creditFree allowance | $100[9] | $30[2] |
| Sandbox SDKCross-provider tools | Supported[12] | Not listed[12] |
Terms that are the same for both are greyed. Unknown = not published; hover for where we looked. Method
E2B: plans and limits
| Plan | Fee | At once | Included | Starts | Max session | Largest | Includes |
|---|---|---|---|---|---|---|---|
| Hobby | Free[13] | 20 | – | 60/min | 1 h | 8 vCPU | $100 one-time usage credit, 20 concurrent sandboxes, 1-hour continuous runtime, 8 vCPU / 8 GiB / 10 GiB disk |
| Pro | $150 /month[13] | 100 | None | 300/min | 24 h | – | Usage billed on top; 100 concurrent sandboxes (add-ons to 1,100), 24-hour continuous runtime, custom CPU and RAM, 20 GiB disk |
| Enterprise | unknown[13]Custom; the pricing page says a $3,000 monthly minimum applies to Enterprise usage | ? | – | – | – | – | Custom limits, multi-day sessions, BYOC on AWS, GCP or Azure |
Fly.io Sprites: plans and limits
| Plan | Fee | At once | Included | Starts | Max session | Largest | Includes |
|---|---|---|---|---|---|---|---|
| Pay-as-you-go | Free[4] | ? | – | 10/min | – | – | Usage at standard rates; 10 Sprite creations a minute; community support |
| Adventurer | unknown[4]Price not on the current pages; the 2026-01-22 release notes listed 'Level 20 (Adventurer) - $20/mo' | ? | – | 60/min | – | – | 60 Sprite creations a minute; community support |
| Veteran | unknown[4]Named in the Sprites FAQ; price not published | ? | – | – | – | – | Community support |
| Hero | $100 /month[4] | 100 | – | – | – | – | 1,200 CPU-hours, 4,800 RAM GB-hours, 150 GB storage; 100 running and 100 warm Sprites; standard email support |
| Champion | unknown[4]Named in the Sprites FAQ; price not published | ? | – | – | – | – | Standard email support |
| Legend | unknown[4]Price not on the current pages; the 2026-01-22 release notes listed 'Level 200 (Legend) - $200/mo' | ? | – | – | – | – | Standard email support |
| Epic | unknown[4]Named in the Sprites FAQ; price not published | ? | – | – | – | – | Premium email support |
| Mythic | $2,000 /month[4] | ? | – | 240/min | – | – | 28,000 RAM GB-hours; 240 Sprite creations a minute; premium email support |
Sources
- 1 docs.e2b.dev/billing · 31 Oct 2026
- 2 fly.io/sprites · 31 Oct 2026
- 3 docs.e2b.dev/sandbox/rate-limits · 1 Nov 2026
- 4 fly.io/sprites · 1 Nov 2026
- 5 docs.e2b.dev/faq/sandbox-lifetime · 31 Oct 2026
- 6 docs.fly.io/sprites/concepts/lifecycle.md · 31 Oct 2026
- 7 docs.e2b.dev/faq/security-and-compliance · 31 Oct 2026
- 8 docs.fly.io/sprites/working-with-sprites.md · 31 Oct 2026
- 9 e2b.dev/pricing · 31 Oct 2026
- 10 fly.io/pricing.md · 31 Oct 2026
- 11 docs.e2b.dev/byoc · 31 Oct 2026
- 12 sandbox-sdk.app/providers · 1 Nov 2026
- 13 e2b.dev/pricing · 1 Nov 2026