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GPT-OSS 20B (OpenAI mxfp4)

Keeper Rank #27 of 33 · 2/8 GAUNTLET progress
Generalist — 62.3 / 100 G Agentic — pending A Understanding — pending U Needle — pending N Thinking — pending T Live — pending L Engineering — pending E Throughput — 53.3 / 100 T

Hollow markers & dashed spokes: axis not yet scored

G
62.3
A
U
N
T
n/d
L
E
T
53.3

Specification

Parameters
20B
Architecture
gpt_oss
Size on disk
12.1 GB
Quantization
mxfp4
Format
MLX
Reasoning (CoT)
Yes — emits reasoning tokens
Internal ID
G2
Mean speed
87.1 tok/s across suites
Stall census
0 stalls in 10 observed tests (0.0%)
Model card
lmstudio.ai

Suite results

Suite Score Avg / 20 Tests tok/s
General capability (13-task real-workload suite) 1a 162 / 260 18 9/13 87.1

Each test is LLM-judged 0–20 against a fixed rubric; suite max = tests × 20. Where fewer tests ran than the suite total, unrun tests count as zero toward the axis score. See methodology.