Models · Meta · live prices

Llama 3.1 405B: GPUs needed and cost to self-host

405B parameters. In FP8 that is about 486 GB with room for the KV cache.

Memory, FP8

486 GB

weights + ~20%

Cheapest per 1M output tokens

$1.29

8× A100 · on-demand · 60% utilization

Hosted API, sample list price

$3.50

per 1M output tokens

Cost per 1M output tokens, FP8

Prices observed 12m ago. Cheapest on-demand offer per GPU, whole instances, 60% average utilization.

  1. A10080 GB 8× on Vast.ai · on-demand · $2.68/hr · ~967 tok/s $1.29per 1M out
  2. H200141 GB 4× on Vast.ai · on-demand · $5.27/hr · ~1,138 tok/s $2.15per 1M out
  3. H10080 GB 8× on RunPod · community · $15.92/hr · ~1,588 tok/s $4.64per 1M out
  4. B300288 GB 2× on RunPod · community · $13.88/hr · ~948 tok/s $6.78per 1M out
  5. RTX PRO 600096 GB 8× on Vast.ai · on-demand · $8.02/hr · ~510 tok/s $7.28per 1M out
  6. 409024 GB Doesn’t fit on 8 GPUs
  7. 509032 GB Doesn’t fit on 8 GPUs

The tick marks the sample hosted-API price. Estimates: tokens/s from memory bandwidth with batched serving, not a benchmark. Idle hours still bill, so lower utilization means pricier tokens.

GPUs per replica by precision

One node, split 1, 2, 4 or 8 ways; 90% of VRAM usable.

GPUBF16972 GBFP8486 GBINT4243 GB
H10080 GB —8×4×
H200141 GB 8×4×2×
B300288 GB 4×2×1×
A10080 GB —8×4×
RTX PRO 600096 GB —8×4×
509032 GB ———
409024 GB ———

Run the numbers for your workload

Plan capacity for your traffic Token cost with spot and your utilization API vs your own GPUs at your volume