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GPUs · B300

Rent B300s,
by the second.

NVIDIA's Blackwell Ultra GPU, and the most memory on one GPU here, for models too large for anything smaller.

01Price

$9.99 /GPU-hour

Billed by the second, with no minimum, plus the machine’s disk at $0.08 per GB-month. Drift is the same GPU on spare capacity, and it can be reclaimed without notice. Every price

B300 prices in US dollars
MachineOn demand, per hourDrift, per hourA month left on
1 × B300$9.99$5.49$7,293
8 × B300$79.92$43.92$58,342

02The GPU

Specs

Memory
288 GB HBM3e
Memory bandwidth
8 TB/s
Interconnect
NVLink 5 · 1.8 TB/s
Regions
US, United Kingdom, France, Spain

03What it suits

Good for

  • Training and serving the largest models
  • Workloads limited by memory rather than compute
  • Multi-GPU jobs that lean on fast NVLink

04Launch one

From your terminal

Or from the console or the API, once you’ve created an account. Read the quickstart

terminal
# One, stopping by itself after two hours
koi spawn b300 --ttl 2h

# Eight on one machine, on spare capacity
koi spawn b300:8 --drift

05Questions

About the B300

How much does it cost to rent an B300?
$9.99 per GPU-hour on demand, and $5.49 per GPU-hour on Drift, which is spare capacity that can be reclaimed without notice. You pay by the second, with no minimum. Every machine also has a disk, at $0.08 per GB-month.
Where can I run an B300?
US, United Kingdom, France, Spain. You can pick a region, or let Koi use the cheapest with capacity.
How many B300s can I get on one machine?
One or eight. An account can run 8 GPUs at once to start with, and you can write to us to raise that.
How long does it take to start?
Minutes. Koi shows the machine as starting until SSH answers, and then gives you the command to log in. A machine that never becomes ready costs nothing.

Other GPUs

Ready when you are

Get in
the water.

Pay by the second, only while your GPUs run. No call, no waitlist. Your first H100 is minutes away.