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lfm2.5-thinking:1.2b

OLLAMA GGUF

lfm2 · 1.2B · Q4_K_M

Not Rec.

May 25, 2026 · Apple M4 Pro

stablelm2:1.6b

OLLAMA GGUF

stablelm · 2B · Q4_0

Marginal

Mar 2, 2026 · Apple M4

Global Score
60 vs 45
Hardware Fit
80 vs 100
Quality Score
52 vs 22

Hardware

lfm2.5-thinking:1.2b stablelm2:1.6b
MachineMacBook ProMacBook Air
CPUApple M4 ProApple M4
Cores1410
RAM48 GB32 GB
GPUApple M4 ProApple M4
OSmacOS 26.4.1macOS 26.3
Archarm64arm64
Power Modebalancedbalanced

Performance

lfm2.5-thinking:1.2b stablelm2:1.6b
Tokens/sec227.093.8
First chunk60 msN/A
TTFT30.0 s94 ms
Load time0.7 s0.4 s
Memory usage2.6 GB1.1 GB
Memory %6%3%

HW Fit Score Breakdown

lfm2.5-thinking:1.2b

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

stablelm2:1.6b

Speed
40/50
TTFT
30/20
Memory
30/30

Quality

lfm2.5-thinking:1.2b

Reasoning
8/20
Coding
6/20
Instruction
10/20
Structured
7/15
Math
12/15
Multilingual
9/10
Reasoning: Weak Coding: Weak Instruction Following: Adequate Structured Output: Weak Math: Strong Multilingual: Strong

stablelm2:1.6b

Reasoning
4/20
Coding
7/20
Instruction
6/20
Structured
1/15
Math
2/15
Multilingual
2/10
Reasoning: Poor Coding: Weak Instruction Following: Weak Structured Output: Poor Math: Poor Multilingual: Poor
View lfm2.5-thinking:1.2b details | View stablelm2:1.6b 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