Noometry

Model comparison

Claude 3 Sonnet vs GLM-5.1

GLM-5.1 is the stronger model overall, scoring 47.8 to 29.0 on the Noometry Index.

Last verified . 21 shared benchmarks.

Claude 3 Sonnet Anthropic

29.0

Rank #319 Confirmed

GLM-5.1 Z.ai (Zhipu)

47.8

Rank #59 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and GLM-5.1 in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GLM-5.1 leads 49.7 to 10.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 93.3% for GLM-5.1.
  • GLM-5.1 has downloadable open weights; the other is API-only.

Side by side

Claude 3 SonnetGLM-5.1
ProviderAnthropicZ.ai (Zhipu)
Noometry Index29.047.8
Released2024-02-292026-04-07
WeightsProprietaryOpen
Context window—200K
Max output—131K
Input $ / M tokens—$1.40
Output $ / M tokens—$4.40
Results tracked3041

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Category by category

Coding GLM-5.1 leads

Claude 3 Sonnet: 29.6 (#302), GLM-5.1: 48.7 (#55)

BenchmarkClaude 3 SonnetGLM-5.1
WeirdML10.2%57.1%
LMArena Coding12231485
SWE-bench Verified—74.2%
LMArena WebDev—1508
SciCode—43.8%
BigCodeBench Instruct42.7%—
BigCodeBench Complete53.8%—
ALE-Bench—887.1
HumanEval+64%—
MBPP+69.3%—

Agentic & Tool Use Not comparable

Claude 3 Sonnet: —, GLM-5.1: 24.9 (#113)

BenchmarkClaude 3 SonnetGLM-5.1
APEX-Agents—40.9%
ExploitBench—18.1%
GBAEval—0%
Vending-Bench 2—5,634

Reasoning GLM-5.1 leads

Claude 3 Sonnet: 20.5 (#237), GLM-5.1: 39.1 (#60)

BenchmarkClaude 3 SonnetGLM-5.1
LMArena Hard Prompts11971472
Epoch Capabilities Index120.7149.84
SimpleBench—55.1%
NYT Connections (extended)—77.7%
CritPt—4.6%
Chess Puzzles—19%
Thematic Generalization—69.8%
DTBench53.6%—
WinoGrande75.1%—

Math GLM-5.1 leads

Claude 3 Sonnet: 10.7 (#310), GLM-5.1: 49.7 (#60)

BenchmarkClaude 3 SonnetGLM-5.1
OTIS Mock AIME 2024-20252.5%93.3%
LMArena Math12131473
FrontierMath (Tiers 1-3)—36.8%
MathArena Final-Answer Competitions—67.1%
ProofBench—22.2%
MATH Level 518.2%—
FrontierMath (Feb 2025 set)—33.4%
FrontierMath Tier 4 (v1)—12.5%

Knowledge GLM-5.1 leads

Claude 3 Sonnet: 21.1 (#276), GLM-5.1: 54.9 (#50)

BenchmarkClaude 3 SonnetGLM-5.1
GPQA Diamond40.6%89.9%
LMArena Expert11731476
SimpleQA Verified—34%
MMLU75.9%—

Multimodal Not comparable

Claude 3 Sonnet: 25.2 (#125), GLM-5.1: —

BenchmarkClaude 3 SonnetGLM-5.1
LMArena Vision984—

Multilingual GLM-5.1 leads

Claude 3 Sonnet: 37.8 (#234), GLM-5.1: 55.0 (#36)

BenchmarkClaude 3 SonnetGLM-5.1
LMArena Non-English12051447
LMArena Chinese11891515
LMArena French12291474
LMArena German12041465
LMArena Japanese11311434
LMArena Korean11281418
LMArena Russian12271454
LMArena Spanish12041469

Instruction Following GLM-5.1 leads

Claude 3 Sonnet: 62.8 (#235), GLM-5.1: 76.3 (#42)

BenchmarkClaude 3 SonnetGLM-5.1
LMArena Instruction Following11991451

Long Context GLM-5.1 leads

Claude 3 Sonnet: 36.7 (#228), GLM-5.1: 44.9 (#53)

BenchmarkClaude 3 SonnetGLM-5.1
LMArena Longer Query12111466

Writing & Preference GLM-5.1 leads

Claude 3 Sonnet: 42.1 (#238), GLM-5.1: 66.9 (#31)

BenchmarkClaude 3 SonnetGLM-5.1
LMArena Text12181461
LMArena Creative Writing11861453
LMArena Multi-Turn12271472
EQ-Bench Creative Writing—1592

Frequently asked questions

Is Claude 3 Sonnet better than GLM-5.1?

GLM-5.1 is the stronger model overall, scoring 47.8 to 29.0 on the Noometry Index.

Is Claude 3 Sonnet or GLM-5.1 better for coding?

GLM-5.1 scores higher on coding benchmarks: 48.7 versus 29.6 in the Noometry coding category.

How many benchmarks do Claude 3 Sonnet and GLM-5.1 share?

21 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and GLM-5.1 has 41.

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