by OpenAI

gpt-oss-120b-Turbo.

text open weights datacenter 120B params 131K ctx
Cheapest input
$0.15/M
on DeepInfra
Cheapest output
$0.6/M
on DeepInfra
Smallest GPU
1× Nvidia A100
$0.48/hr
Run it yourself

Cheapest hardware per quantisation.

Each row is one quantisation tier (the same weights compressed differently). Lower precision → lower VRAM → cheaper hardware, at the cost of small accuracy loss. $/hr refreshed hourly from each provider's API.

Quantisation Cheapest GPU config Total VRAM Live $/hr tokens/sec
FP16
FP16 — half precision (default)
384 GB Compare →
FP8
FP8 — 8-bit float (Hopper / Blackwell)
192 GB Compare →
INT4
INT4 — 4-bit integer (~4× VRAM saving)
80 GB $0.48/hr Compare →
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