OpenAI
Unsloth

gpt-oss-20b benchmark on an Apple's logo.M4 Pro · 24 GB

<- Runs

Prompt tokens

40,960

Generation tokens

10,240

Trials passed

10/10

Verified

64.9 tok/s

635.2 tok/s

Peak memory

6.21/24 GB

Runs ok

Trials

Decode / Prefill Speeds

Metadata

metadata.json
{
"runId": "run_cf0d023d-102a-48df-a925-6fd641a257ae",
"bundleId": "llamacpp-gpt-oss-20b-q5_k_m.gguf-ceae69",
"status": "verified",
"promptTokens": 40960,
"completionTokens": 10240,
"contextLength": 5120,
"harness": {
"version": "0.1.21",
"gitSha": "unknown"
},
"runtime": {
"name": "llama.cpp",
"version": "0.3.0",
"buildFlags": null
},
"model": {
"displayName": "gpt-oss-20b",
"format": "gguf",
"quant": "q5_k_m",
"architecture": "gpt-oss",
"source": "unsloth/gpt-oss-20b-GGUF:gpt-oss-20b-Q5_K_M.gguf",
"fileSizeBytes": 11717357248,
"lab": {
"name": "OpenAI",
"slug": "openai"
},
"quantizedBy": {
"name": "Unsloth",
"slug": "unsloth"
}
},
"device": {
"cpu": "Apple M4 Pro",
"cpuCores": 12,
"gpu": "Apple M4 Pro",
"gpuCores": 16,
"gpuCount": 1,
"ramGb": 24,
"osName": "macOS",
"osVersion": "15.7.2"
},
"decodeTpsMean": 64.9,
"prefillTpsMean": 635.2,
"ttftP50Ms": 6448.42,
"idleTpsMean": 5220.3,
"peakRssMb": 6357.8,
"trialsPassed": 10,
"trialsTotal": 10,
"runnabilityScore": 0.6999987667410714,
"bundleSha256": "89cbea46623a7a0abbe5d23661ed853bdc37d43af612cba1e9db6a8b9957ba4e",
"createdAt": "2026-09-01T12:27:50.215Z"
}