Model comparison

GLM-5.3-Flash vs o1-mini

GLM-5.3-Flash is the stronger model overall, scoring 49.6 to 33.7 on the Noometry Index.

Last verified . 20 shared benchmarks.

GLM-5.3-Flash Z.ai (Zhipu)

49.6

Rank #45 Confirmed

o1-mini OpenAI

33.7

Rank #230 Confirmed

Summary

  • They share 20 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 knowledge, where GLM-5.3-Flash leads 58.4 to 34.8.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 93.9% for GLM-5.3-Flash and 46.9% 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 Index49.633.7
Released2026-08-202024-09-12
WeightsOpenProprietary
Context window1M—
Max output131K—
Input $ / M tokens$0.15—
Output $ / M tokens$0.50—
Results tracked3639

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: 53.7 (#26), o1-mini: 35.1 (#218)

Coding benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Coding15061362
DeepSWE63.4%—
FrontierCode31.8%—
Aider Polyglot—32.9%
LMArena WebDev1614—
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: 34.3 (#41), o1-mini: 24.3 (#112)

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: 31.7 (#69), o1-mini: 8.9 (#340)

Reasoning benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Hard Prompts14901333
Epoch Capabilities Index151.9135.82
ARC-AGI-2—0.8%
SimpleBench—18.1%
ARC-AGI-1—14%
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: 53.1 (#38), o1-mini: 33.7 (#168)

Math benchmarks
BenchmarkGLM-5.3-Flasho1-mini
OTIS Mock AIME 2024-202593.9%46.9%
LMArena Math14991358
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 (#33), o1-mini: 34.8 (#180)

Knowledge benchmarks
BenchmarkGLM-5.3-Flasho1-mini
GPQA Diamond90.2%62.4%
LMArena Expert15121316
Confabulations—18.6%

Multimodal Not comparable

GLM-5.3-Flash: 42.6 (#25), o1-mini: —

Multimodal benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Vision1304—

Multilingual GLM-5.3-Flash leads

GLM-5.3-Flash: 56.2 (#24), o1-mini: 43.8 (#177)

Multilingual benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Non-English14621289
LMArena Chinese15291314
LMArena French14951292
LMArena German14571278
LMArena Japanese14201245
LMArena Korean14431223
LMArena Russian14721283
LMArena Spanish14711302

Instruction Following GLM-5.3-Flash leads

GLM-5.3-Flash: 77.8 (#17), o1-mini: 67.0 (#200)

Instruction Following benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Instruction Following14801304
LiveBench Instruction Following—65.4%

Long Context GLM-5.3-Flash leads

GLM-5.3-Flash: 45.3 (#41), o1-mini: 40.1 (#156)

Long Context benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Longer Query14791321

Writing & Preference GLM-5.3-Flash leads

GLM-5.3-Flash: 65.4 (#49), o1-mini: 48.6 (#196)

Writing & Preference benchmarks
BenchmarkGLM-5.3-Flasho1-mini
LMArena Text14711317
LMArena Creative Writing14401244
LMArena Multi-Turn14711314
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 49.6 to 33.7 on the Noometry Index.

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

GLM-5.3-Flash scores higher on coding benchmarks: 53.7 versus 35.1 in the Noometry coding category.

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

20 benchmarks have published results for both models. GLM-5.3-Flash has 36 scored results on Noometry and o1-mini has 39.

Related comparisons

Go deeper