Model comparison

GLM-5.3-Flash vs o1-mini

GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 34.0 on the Noometry Index.

Last verified . 22 shared benchmarks.

GLM-5.3-Flash Z.ai (Zhipu)

51.8

Rank #41 Confirmed

o1-mini OpenAI

34.0

Rank #235 Confirmed

Summary

  • They share 22 benchmarks with published results for both. GLM-5.3-Flash scores higher in 9 categories and o1-mini in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GLM-5.3-Flash leads 48.0 to 8.8.
  • The biggest single-benchmark swing is ARC-AGI-1: 91% for GLM-5.3-Flash and 14% for o1-mini.
  • GLM-5.3-Flash has downloadable open weights; the other is API-only.

Side by side

GLM-5.3-Flash and o1-mini specifications
GLM-5.3-Flasho1-mini
ProviderZ.ai (Zhipu)OpenAI
Noometry Index51.834.0
Released2026-08-202024-09-12
WeightsOpenProprietary
Context window1M—
Max output131K—
Input $ / M tokens$0.15—
Output $ / M tokens$0.50—
Results tracked4039

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding GLM-5.3-Flash leads

GLM-5.3-Flash: 53.1 (#31), o1-mini: 35.5 (#224)

Coding benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Coding15081362
DeepSWE63.4%—
FrontierCode31.8%—
Aider Polyglot—32.9%
CursorBench36.8%—
LMArena WebDev1609—
FrontierSWE18.1%—
SciCode51.6%—
WeirdML—36.3%
LiveBench Coding—48%
ALE-Bench303.55—
HumanEval+—89%
MBPP+—78.8%

Agentic & Tool Use GLM-5.3-Flash leads

GLM-5.3-Flash: 34.2 (#47), o1-mini: 24.6 (#118)

Agentic & Tool Use benchmarks
BenchmarkGLM-5.3-Flasho1-mini
APEX-Agents52.8%—
Cybench—10%
GDP.pdf14%—

Reasoning GLM-5.3-Flash leads

GLM-5.3-Flash: 48.0 (#42), o1-mini: 8.8 (#346)

Reasoning benchmarks
BenchmarkGLM-5.3-Flasho1-mini
ARC-AGI-265.8%0.8%
ARC-AGI-191%14%
LMArena Hard Prompts14911333
Epoch Capabilities Index151.88135.82
SimpleBench—18.1%
CritPt15.4%—
Chess Puzzles14%—
LiveBench Reasoning—72.3%
Mystery Game Puzzles8%—
LiveBench Data Analysis—57.9%
Surface Evolver Bench52.5%—
Bench to the Future 30.15—
LiveBench—57.8%

Math GLM-5.3-Flash leads

GLM-5.3-Flash: 53.3 (#47), o1-mini: 35.4 (#186)

Math benchmarks
BenchmarkGLM-5.3-Flasho1-mini
OTIS Mock AIME 2024-202593.9%46.9%
LMArena Math15001358
FrontierMath (Tiers 1-3)55.8%—
FrontierMath Tier 417.1%—
ProofBench21%—
LiveBench Math—62%
MATH Level 5—89.2%
FrontierMath (Feb 2025 set)—1.7%

Knowledge GLM-5.3-Flash leads

GLM-5.3-Flash: 58.4 (#36), o1-mini: 34.9 (#192)

Knowledge benchmarks
BenchmarkGLM-5.3-Flasho1-mini
GPQA Diamond90.2%62.4%
LMArena Expert15131316
Confabulations—18.6%

Multimodal Not comparable

GLM-5.3-Flash: 42.8 (#27), o1-mini: —

Multimodal benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Vision1296—

Multilingual GLM-5.3-Flash leads

GLM-5.3-Flash: 56.0 (#25), o1-mini: 43.6 (#182)

Multilingual benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Non-English14621289
LMArena Chinese15271314
LMArena French14961293
LMArena German14701278
LMArena Japanese14291245
LMArena Korean14461223
LMArena Russian14691283
LMArena Spanish14711303

Instruction Following GLM-5.3-Flash leads

GLM-5.3-Flash: 77.5 (#20), o1-mini: 66.7 (#206)

Instruction Following benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Instruction Following14781304
LiveBench Instruction Following—65.4%

Long Context GLM-5.3-Flash leads

GLM-5.3-Flash: 45.4 (#39), o1-mini: 40.1 (#161)

Long Context benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Longer Query14821320

Writing & Preference GLM-5.3-Flash leads

GLM-5.3-Flash: 65.3 (#50), o1-mini: 48.4 (#202)

Writing & Preference benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Text14711317
LMArena Creative Writing14421244
LMArena Multi-Turn14671314
Short-Story Creative Writing—64.9%
LiveBench Language—40.9%

Frequently asked questions

Is GLM-5.3-Flash better than o1-mini?

GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 34.0 on the Noometry Index.

Is GLM-5.3-Flash or o1-mini better for coding?

GLM-5.3-Flash scores higher on coding benchmarks: 53.1 versus 35.5 in the Noometry coding category.

How many benchmarks do GLM-5.3-Flash and o1-mini share?

22 benchmarks have published results for both models. GLM-5.3-Flash has 40 scored results on Noometry and o1-mini has 39.

Related comparisons

Go deeper