Curated Buying Guide · prices verified 2026-08-25
Environments That Live for Days, Not Seconds
Persistent dev environments and stateful agents need sandboxes that survive hours or days at bigger profiles (here: 4 vCPU / 8 GiB, 2,000 hr/mo). Several short-lived-execution platforms hard-cap session length — lifetime reality filters first, then computed cost ranks what remains.
🏆 Recommendations for This Workload
Editorial picks — curated by us for this workload. The full computed table (all priced vendors) follows below.
The same CPX62 host runs fewer-but-bigger sandboxes (min(16/4, 32/8) = 4 concurrent at this profile) for the same flat $153.59/mo — computed #1 with no teardown timer.
$266.64/mo computed at 2,000 hr — containers are built to run continuously, no sandbox-session semantics to fight.
$662.40/mo computed at this profile, and Pro sessions die at ≤24h — only fits if your environment checkpoints state externally.
Computed Monthly Cost at This Guide's Workload
Workload: 2,000 sandbox-hrs/mo · 4 vCPU per sandbox · 8 GiB RAM per sandbox
| Rank | Vendor | $/vCPU-hr | $/GiB-hr | Computed Monthly Bill | × cheapest |
|---|---|---|---|---|---|
| 4 | E2B | $0.0504 | $0.0162 | $662.40/mo | 4.30× |
| 3 | Daytona | $0.0504 | $0.0162 | $662.40/mo | 4.30× |
| 6 | Beam (sandbox) | $0.0675 | $0.0230 | $908.64/mo | 5.90× |
| 7 | Modal (Sandboxes) | $0.0710 | $0.0240 | $952.00/mo | 6.20× |
| 8 | Runloop | $0.1080 | $0.0252 | $1,267.20/mo | 8.30× |
| 1 | Self-host Firecracker (Hetzner) | — | incl. | $153.59/mo | cheapest |
| 5 | Cloudflare Containers | $0.0720 | $0.0090 | $720.00/mo | 4.70× |
| 2 | Northflank | $0.0167 | $0.0083 | $266.64/mo | 1.70× |
💡 Key Takeaways
- Session-length caps, not price, eliminate most short-lived-execution platforms for this profile.
- An always-on environment bills around-the-clock: 2,000 hr/mo ≈ one permanent 4 vCPU / 8 GiB environment plus burst headroom.
- At sustained volume the fixed-cost host wins outright; the variable-bill platforms only reclaim the crown below ~1,150 hours/month at this 4 vCPU / 8 GiB profile ($153.59 ÷ $0.1333 per sandbox-hour).
⚠️ Gotchas & Hidden Costs
- "Sandbox" platforms optimize for ephemerality; state must live in volumes or external services.
- Always-on usage removes the burst-discount psychology — compare against plain container hosting too.
Fine-Tune for Your Exact Workload
Adjust sandbox-hours and the vCPU/RAM profile in the full interactive calculator.
Customize This Workload in Calculator →