Back to leaderboard

openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Excellent

Apr 24, 2026 · AMD Ryzen 5 5500

openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Jul 17, 2026 · Apple M5 Max

Global Score
90 vs 83
Hardware Fit
88 vs 80
Quality Score
91 vs 84

Hardware

openai/gpt-oss-20b openai/gpt-oss-20b
MachineASUSMacBook Pro
CPUAMD Ryzen 5 5500Apple M5 Max
Cores1218
RAM31 GB64 GB
GPUNavi 44 [Radeon RX 9060 XT]Apple M5 Max
OSNobara Linux 43macOS 27.0
Archx64arm64
Power Modeperformancebalanced

Performance

openai/gpt-oss-20b openai/gpt-oss-20b
Tokens/sec58.7131.7
First chunk6 ms7 ms
TTFT4.5 s30.0 s
Load timeN/AN/A
Memory usage11.9 GB15.8 GB
Memory %38%25%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed
50/50
TTFT
10/20
Memory
28/30

openai/gpt-oss-20b

Speed
50/50
TTFT
0/20
Memory
30/30

Quality

openai/gpt-oss-20b

Reasoning
18/20
Coding
15/20
Instruction
18/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

openai/gpt-oss-20b

Reasoning
18/20
Coding
13/20
Instruction
14/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View openai/gpt-oss-20b details

Run yours and compare

$ npm install -g metrillm@latest
$ metrillm

Requires Node 20+ and Ollama or LM Studio running

Or run without installing: npx metrillm@latest