Model comparison

GLM-5.1 vs o1-mini

GLM-5.1 is the stronger model overall, scoring 47.8 to 34.0 on the Noometry Index.

Last verified . 23 shared benchmarks.

GLM-5.1 Z.ai (Zhipu)

47.8

Rank #59 Confirmed

o1-mini OpenAI

34.0

Rank #235 Confirmed

Summary

  • They share 23 benchmarks with published results for both. GLM-5.1 scores higher in 9 categories and o1-mini in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GLM-5.1 leads 39.1 to 8.8.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 93.3% for GLM-5.1 and 46.9% for o1-mini.
  • GLM-5.1 has downloadable open weights; the other is API-only.

Side by side

GLM-5.1 and o1-mini specifications
GLM-5.1o1-mini
ProviderZ.ai (Zhipu)OpenAI
Noometry Index47.834.0
Released2026-04-072024-09-12
WeightsOpenProprietary
Context window200K—
Max output131K—
Input $ / M tokens$1.40—
Output $ / M tokens$4.40—
Results tracked4139

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Category by category

Coding GLM-5.1 leads

GLM-5.1: 48.7 (#55), o1-mini: 35.5 (#224)

Coding benchmarks
BenchmarkGLM-5.1o1-mini
WeirdML57.1%36.3%
LMArena Coding14851362
SWE-bench Verified74.2%—
Aider Polyglot—32.9%
LMArena WebDev1508—
SciCode43.8%—
LiveBench Coding—48%
ALE-Bench887.1—
HumanEval+—89%
MBPP+—78.8%

Agentic & Tool Use Too close to call

GLM-5.1: 24.9 (#113), o1-mini: 24.6 (#118)

Agentic & Tool Use benchmarks
BenchmarkGLM-5.1o1-mini
APEX-Agents40.9%—
Cybench—10%
ExploitBench18.1%—
GBAEval0%—
Vending-Bench 25,634—

Reasoning GLM-5.1 leads

GLM-5.1: 39.1 (#60), o1-mini: 8.8 (#346)

Reasoning benchmarks
BenchmarkGLM-5.1o1-mini
SimpleBench55.1%18.1%
LMArena Hard Prompts14721333
Epoch Capabilities Index149.84135.82
ARC-AGI-2—0.8%
NYT Connections (extended)77.7%—
ARC-AGI-1—14%
CritPt4.6%—
Chess Puzzles19%—
Thematic Generalization69.8%—
LiveBench Reasoning—72.3%
LiveBench Data Analysis—57.9%
LiveBench—57.8%

Math GLM-5.1 leads

GLM-5.1: 49.7 (#60), o1-mini: 35.4 (#186)

Knowledge GLM-5.1 leads

GLM-5.1: 54.9 (#50), o1-mini: 34.9 (#192)

Knowledge benchmarks
BenchmarkGLM-5.1o1-mini
GPQA Diamond89.9%62.4%
LMArena Expert14761316
SimpleQA Verified34%—
Confabulations—18.6%

Multilingual GLM-5.1 leads

GLM-5.1: 55.0 (#36), o1-mini: 43.6 (#182)

Multilingual benchmarks
BenchmarkGLM-5.1o1-mini
LMArena Non-English14471289
LMArena Chinese15151314
LMArena French14741293
LMArena German14651278
LMArena Japanese14341245
LMArena Korean14181223
LMArena Russian14541283
LMArena Spanish14691303

Instruction Following GLM-5.1 leads

GLM-5.1: 76.3 (#42), o1-mini: 66.7 (#206)

Instruction Following benchmarks
BenchmarkGLM-5.1o1-mini
LMArena Instruction Following14511304
LiveBench Instruction Following—65.4%

Long Context GLM-5.1 leads

GLM-5.1: 44.9 (#53), o1-mini: 40.1 (#161)

Long Context benchmarks
BenchmarkGLM-5.1o1-mini
LMArena Longer Query14661320

Writing & Preference GLM-5.1 leads

GLM-5.1: 66.9 (#31), o1-mini: 48.4 (#202)

Writing & Preference benchmarks
BenchmarkGLM-5.1o1-mini
LMArena Text14611317
LMArena Creative Writing14531244
LMArena Multi-Turn14721314
Short-Story Creative Writing—64.9%
EQ-Bench Creative Writing1592—
LiveBench Language—40.9%

Frequently asked questions

Is GLM-5.1 better than o1-mini?

GLM-5.1 is the stronger model overall, scoring 47.8 to 34.0 on the Noometry Index.

Is GLM-5.1 or o1-mini better for coding?

GLM-5.1 scores higher on coding benchmarks: 48.7 versus 35.5 in the Noometry coding category.

How many benchmarks do GLM-5.1 and o1-mini share?

23 benchmarks have published results for both models. GLM-5.1 has 41 scored results on Noometry and o1-mini has 39.

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