Shardflux vs Upstash Box
Shardflux costs $0.04 per vCPU-hour and Upstash Box costs $0.10 per vCPU-hour. Shardflux runs Firecracker microVMs and offers GPUs. Upstash Box runs containers.
Updated
Shardflux
- Isolation
- Firecracker microVM
- Free tier
- 30-day Pro trial, no card needed
- Max session
- Not listed
Upstash Box
- Isolation
- Container
- Free tier
- Free plan, 5 CPU hours per month
- Max session
- Not listed
What is different
10 fields differ. The rest are the same or not listed.
Shardflux
Upstash Box
- vCPU, per hour
- Shardflux: $0.04
- Upstash Box: $0.10
- RAM, per GiB-hour
- Shardflux: $0.015
- Upstash Box: Included
- Storage
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Upstash Box: $0.10 per GB per month, including snapshots. Included on Fixed.
- Free tier
- Shardflux: 30-day Pro trial, no card needed
- Upstash Box: Free plan, 5 CPU hours per month
- Paid plan from
- Shardflux: $9 / month
- Upstash Box: Pay as you go
- Largest sandbox
- Shardflux: 32 vCPU · 64 GiB
- Upstash Box: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Shardflux: Up to 200
- Upstash Box: Up to 1,000
- Isolation
- Shardflux: Firecracker microVM
- Upstash Box: Container
- SDKs
- Shardflux: TypeScript, Python
- Upstash Box: Python, TypeScript
- Integrations
- Shardflux: Claude Code, MCP
- Upstash Box: LangChain, Vercel AI SDK, Claude Code, MCP
Full comparison
18 fields, at each provider's list price
Shardfluxshardflux
Upstash Boxupstash
Pricing
- vCPU, per hour
- Shardflux: $0.04
- Upstash Box: $0.10
- RAM, per GiB-hour
- Shardflux: $0.015
- Upstash Box: Included
- Storage
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Upstash Box: $0.10 per GB per month, including snapshots. Included on Fixed.
- Free tier
- Shardflux: 30-day Pro trial, no card needed
- Upstash Box: Free plan, 5 CPU hours per month
- Paid plan from
- Shardflux: $9 / month
- Upstash Box: Pay as you go
- Billing
- Shardflux: Active CPU time only
- Upstash Box: Active CPU time only
Limits
- Max session
- Shardflux: Not listed
- Upstash Box: Not listed
- Idle stop
- Shardflux: Not listed
- Upstash Box: After 360 minutes
- Largest sandbox
- Shardflux: 32 vCPU · 64 GiB
- Upstash Box: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Shardflux: Up to 200
- Upstash Box: Up to 1,000
Platform
- Isolation
- Shardflux: Firecracker microVM
- Upstash Box: Container
- GPU
- Shardflux:
- Upstash Box: Not listed
- Snapshots
- Shardflux:
- Upstash Box:
- Pause and resume
- Shardflux:
- Upstash Box:
Developer
- SDKs
- Shardflux: TypeScript, Python
- Upstash Box: Python, TypeScript
- Integrations
- Shardflux: Claude Code, MCP
- Upstash Box: LangChain, Vercel AI SDK, Claude Code, MCP
Trust
- License
- Shardflux: Not listed
- Upstash Box: Not listed
- BYOC
- Shardflux: Not listed
- Upstash Box: Not listed
Hourly cost
One sandbox running for one hour
Shardflux
Upstash Box
- 1 vCPU · 2 GiB
- Shardflux: $0.070
- Upstash Box: $0.100
- 2 vCPU · 4 GiB
- Shardflux: $0.140
- Upstash Box: $0.200
- 4 vCPU · 8 GiB
- Shardflux: $0.280
- Upstash Box: $0.400
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Shardflux fits when
- You need GPUs.
- You want each sandbox in its own microVM.
- You want the lower list price: $0.140 against $0.200 an hour for 2 vCPU and 4 GiB.
- You need a desktop in the sandbox.
Upstash Box fits when
- You want to pay only for usage, with no plan fee.
- You use LangChain or the Vercel AI SDK.
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