Noometry

Model comparison

AI Co-Mathematician vs GLM-5.3-Flash

GLM-5.3-Flash has enough public results to be ranked (#45); AI Co-Mathematician does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

AI Co-Mathematician Google

57.6

Unranked Sparse

GLM-5.3-Flash Z.ai (Zhipu)

49.6

Rank #45 Confirmed

Summary

  • They share 1 benchmark with published results for both. AI Co-Mathematician scores higher in 1 category and GLM-5.3-Flash in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in math, where AI Co-Mathematician leads 71.7 to 53.1.
  • The biggest single-benchmark swing is FrontierMath Tier 4: 75.6% for AI Co-Mathematician and 17.1% for GLM-5.3-Flash.
  • GLM-5.3-Flash has downloadable open weights; the other is API-only.

Side by side

AI Co-MathematicianGLM-5.3-Flash
ProviderGoogleZ.ai (Zhipu)
Noometry Index57.649.6
Released2026-05-082026-08-20
WeightsProprietaryOpen
Context window—1M
Max output—131K
Input $ / M tokens—$0.15
Output $ / M tokens—$0.50
Results tracked236

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Category by category

Coding Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 53.7 (#26)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
DeepSWE—63.4%
FrontierCode—31.8%
LMArena WebDev—1614
SciCode—51.6%
LMArena Coding—1506
ALE-Bench—303.55

Agentic & Tool Use Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 34.3 (#41)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
APEX-Agents—52.8%
GDP.pdf—14%

Reasoning Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 31.7 (#69)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
CritPt—15.4%
Chess Puzzles—14%
LMArena Hard Prompts—1490
Mystery Game Puzzles—8%
Surface Evolver Bench—52.5%
Bench to the Future 3—0.15
Epoch Capabilities Index—151.9

Math AI Co-Mathematician leads

AI Co-Mathematician: 71.7, GLM-5.3-Flash: 53.1 (#38)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
FrontierMath Tier 475.6%17.1%
FrontierMath (Tiers 1-3)—55.8%
OTIS Mock AIME 2024-2025—93.9%
ProofBench—21%
LMArena Math—1499
FrontierMath Tier 4 (v1)47.9%—

Knowledge Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 58.4 (#33)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
GPQA Diamond—90.2%
LMArena Expert—1512

Multimodal Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 42.6 (#25)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
LMArena Vision—1304

Multilingual Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 56.2 (#24)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
LMArena Non-English—1462
LMArena Chinese—1529
LMArena French—1495
LMArena German—1457
LMArena Japanese—1420
LMArena Korean—1443
LMArena Russian—1472
LMArena Spanish—1471

Instruction Following Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 77.8 (#17)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
LMArena Instruction Following—1480

Long Context Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 45.3 (#41)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
LMArena Longer Query—1479

Writing & Preference Not comparable

AI Co-Mathematician: —, GLM-5.3-Flash: 65.4 (#49)

BenchmarkAI Co-MathematicianGLM-5.3-Flash
LMArena Text—1471
LMArena Creative Writing—1440
LMArena Multi-Turn—1471

Frequently asked questions

Is AI Co-Mathematician better than GLM-5.3-Flash?

GLM-5.3-Flash has enough public results to be ranked (#45); AI Co-Mathematician does not yet, so treat this comparison as directional.

How many benchmarks do AI Co-Mathematician and GLM-5.3-Flash share?

1 benchmark has published results for both models. AI Co-Mathematician has 2 scored results on Noometry and GLM-5.3-Flash has 36.

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