SPACEXAI
4/5 workers samplingPOSSIBLE_MODEL_CHANGE · gpt-5
Hardware

Same weights. Different serving stack.

Llama 4 405B across Together, Fireworks, Groq, self-host H100, and self-host B200. MLPerf’s split — workload quality versus system performance, including measured rack power — is the rigor we borrow.

B200 tok/s
210
GBU lab, measured
Groq tok/s
420
LPU, LIVE_MEASURED speed
B200 J/token
20.0
Wall power / throughput
H100 watts
5.6 kW
TP8 rack, LIVE_MEASURED
StackGPUVRAMTTFTtok/sRPSWattsJ/tokJ/task$/taskEvidence
Together H200
Llama 4 405B
H200 SXM141 GB280 ms1109.4n/a (API)——$0.022
THIRD_PARTYLIVE_MEASURED
Fireworks H200
Llama 4 405B
H200 SXM141 GB220 ms15512.8n/a (API)——$0.024
THIRD_PARTYLIVE_MEASURED
Groq LPU
Llama 4 405B
Groq LPU—90 ms42038.0n/a (API)——$0.020
OFFICIAL_PROVIDERLIVE_MEASURED
GBU lab · TP8 H100
Llama 4 405B
8× H100 80GB640 GB180 ms854.25,60065.934,500$0.011
LIVE_MEASUREDREPRODUCED
GBU lab · TP4 B200
Llama 4 405B
4× B200 192GB768 GB95 ms21011.44,20020.010,800$0.0078
LIVE_MEASUREDREPRODUCED

Power columns are empty for APIs on purpose. We do not invent joules for a black-box fleet. Lab racks are instrumented at the PDU.