Amazon Bedrock AgentCore Runtime vs Fly.io Sprites

Amazon Bedrock AgentCore Runtime costs $0.0895 per vCPU-hour and Fly.io Sprites costs $0.0385 per vCPU-hour. Amazon Bedrock AgentCore Runtime runs microVMs and limits a session to 8 hours. Fly.io Sprites runs Firecracker microVMs.

Updated Oct 23, 2026

Amazon Bedrock AgentCore Runtime

Hosts AI agents on AWS and runs each user session in its own microVM.

Isolation: MicroVM
Free tier: Not listed
Max session: 8 hours

Visit site Amazon Bedrock AgentCore Runtime profile

Fly.io Sprites

Persistent Linux computers that sleep when idle.

Isolation: Firecracker microVM
Free tier: $30 trial credit
Max session: Not listed

Visit site Fly.io Sprites profile

What is different

6 fields differ. The rest are the same or not listed.

Field

Amazon Bedrock AgentCore Runtime

Fly.io Sprites

vCPU, per hour: Amazon Bedrock AgentCore Runtime: $0.0895; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Amazon Bedrock AgentCore Runtime: $0.00945; Fly.io Sprites: $0.021875
Storage: Amazon Bedrock AgentCore Runtime: Session storage is free during preview. Code storage is billed at Amazon ECR or S3 rates; Fly.io Sprites: $0.000683 per GiB-hour
Isolation: Amazon Bedrock AgentCore Runtime: MicroVM; Fly.io Sprites: Firecracker microVM
SDKs: Amazon Bedrock AgentCore Runtime: Python, TypeScript; Fly.io Sprites: Python, JavaScript / TypeScript, Go
Integrations: Amazon Bedrock AgentCore Runtime: Claude Agent SDK, LangChain, MCP, OpenAI Agents SDK; Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code

Full comparison

18 fields, at each provider's list price

Amazon Bedrock AgentCore Runtimeaws.amazon.com/bedrock/agentcore/pricingaws.amazon.com

Fly.io Spritesfly.io/pricing

Pricing

vCPU, per hour: Amazon Bedrock AgentCore Runtime: $0.0895; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Amazon Bedrock AgentCore Runtime: $0.00945; Fly.io Sprites: $0.021875
Storage: Amazon Bedrock AgentCore Runtime: Session storage is free during preview. Code storage is billed at Amazon ECR or S3 rates; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Amazon Bedrock AgentCore Runtime: Not listed; Fly.io Sprites: $30 trial credit
Paid plan from: Amazon Bedrock AgentCore Runtime: Pay as you go; Fly.io Sprites: Pay as you go
Billing: Amazon Bedrock AgentCore Runtime: Active CPU time only; Fly.io Sprites: Active CPU time only

Limits

Max session: Amazon Bedrock AgentCore Runtime: 8 hours; Fly.io Sprites: Not listed
Idle stop: Amazon Bedrock AgentCore Runtime: After 15 minutes; Fly.io Sprites: Not listed
Largest sandbox: Amazon Bedrock AgentCore Runtime: 2 vCPU · 8 GiB; Fly.io Sprites: Not listed
Concurrent sandboxes: Amazon Bedrock AgentCore Runtime: Up to 5,000; Fly.io Sprites: Not listed

Platform

Isolation: Amazon Bedrock AgentCore Runtime: MicroVM; Fly.io Sprites: Firecracker microVM
GPU: Amazon Bedrock AgentCore Runtime: Not listed; Fly.io Sprites: Not listed
Snapshots: Amazon Bedrock AgentCore Runtime: Not listed; Fly.io Sprites:
Pause and resume: Amazon Bedrock AgentCore Runtime:; Fly.io Sprites:

Developer

SDKs: Amazon Bedrock AgentCore Runtime: Python, TypeScript; Fly.io Sprites: Python, JavaScript / TypeScript, Go
Integrations: Amazon Bedrock AgentCore Runtime: Claude Agent SDK, LangChain, MCP, OpenAI Agents SDK; Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code

Trust

License: Amazon Bedrock AgentCore Runtime: Not listed; Fly.io Sprites: Not listed
BYOC: Amazon Bedrock AgentCore Runtime: Not listed; Fly.io Sprites: Not listed

Hourly cost

One sandbox running for one hour

Size

Amazon Bedrock AgentCore Runtime

Fly.io Sprites

1 vCPU · 2 GiB: Amazon Bedrock AgentCore Runtime: $0.108; Fly.io Sprites: $0.082
2 vCPU · 4 GiB: Amazon Bedrock AgentCore Runtime: $0.217; Fly.io Sprites: $0.165
4 vCPU · 8 GiB: Amazon Bedrock AgentCore Runtime: $0.434; Fly.io Sprites: $0.329

Compute only, at list rates.

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Which one fits

Based on the fields above

Amazon Bedrock AgentCore Runtime fits when

You use the Claude Agent SDK or LangChain.
You need SOC 2 and ISO 27001.

Fly.io Sprites fits when

You use Claude Code.
You want the lower list price: $0.165 against $0.217 an hour for 2 vCPU and 4 GiB.
You need snapshots.
You need SOC 2 Type II and GDPR.

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Amazon Bedrock AgentCore Runtime

Fly.io Sprites

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Amazon Bedrock AgentCore Runtime fits when

Fly.io Sprites fits when

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