c8i-flex.4xlarge

    $0.7122/hr

    ~$519.88/month on-demand in us-east-1

    The c8i-flex.4xlarge is a Compute optimized instance with 16 vCPUs and 32 GiB of memory with up to 3.75 Gbps bandwidth, starting at $0.712 per hour.

    Last updated: Jan 14, 2026, 12:21 PM UTC

    Pricing varies by operating system

    All pricing cards update to show this payment type

    Pricing Options

    Compute SP

    Most flexible - any instance

    1 Year - No Upfront
    $0.5146/hr
    ~$375.69/mo
    Save 28%
    3 Year - No Upfront
    $0.3438/hr
    ~$251.01/mo
    Save 52%

    EC2 Instance SP

    Locked to family - cheaper

    1 Year - No Upfront
    $0.4711/hr
    ~$343.90/mo
    Save 34%
    3 Year - No Upfront
    $0.3135/hr
    ~$228.88/mo
    Save 56%

    Reserved

    Region & instance locked

    Spot Pricing

    Up to 90% savings - flexible workloads

    Cheapest AZ
    us-east-1c
    $0.6049/hr
    ~$441.58/mo
    Save 45% vs On-Demand
    5-10%interruption rate
    Price Range (24h)
    Min
    $0.4725
    Avg
    $0.6467
    Max
    $0.7771
    All Availability Zones
    us-east-1c$0.6049/hr
    us-east-1c$0.4799/hr
    us-east-1b$0.7771/hr
    us-east-1c$0.7769/hr
    us-east-1c$0.6527/hr
    us-east-1b$0.6976/hr
    us-east-1b$0.6498/hr
    us-east-1b$0.5248/hr
    us-east-1d$0.6878/hr
    us-east-1d$0.6400/hr
    us-east-1d$0.5150/hr
    us-east-1d$0.7770/hr

    Instance Specifications

    Detailed hardware and capabilities for c8i-flex.4xlarge

    Processor

    ManufacturerIntel
    Clock Speed3.9 GHz
    Sustained Speed3.9 GHz
    Architecturex86_64
    vCPUs16
    Memory32 GiB
    Memory per vCPU2.00 GiB

    Network

    PerformanceUp to 15 Gigabit
    Bandwidth3.75 Gbps
    Max Interfaces8
    IPv4 per Interface50
    Enhanced Networking
    EFA Support
    IPv6

    Storage

    EBS Only
    EBS Optimized
    EBS Encryption
    EBS NVMe Support
    Max Bandwidth10000 Mbps (1250.00 MB/s)
    Max IOPS40,000
    Baseline Bandwidth2500 Mbps (312.50 MB/s)
    Baseline IOPS12,000

    Capabilities

    GenerationCurrent
    Burstable
    Bare Metal
    Dedicated Hosts
    Hibernation
    Auto Recovery
    Free Tier
    Usage Classeson-demand, spot
    Root Devicesebs
    Virtualizationhvm

    Regional Pricing Comparison

    Compare c8i-flex.4xlarge (Linux) pricing across all regions - sorted by cost

    Current region (us-east-1)Other regions
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