Noometry

Model comparison

GLM-5.1 vs Inkling

GLM-5.1 is the stronger model overall, scoring 47.8 to 44.1 on the Noometry Index.

Last verified . 32 shared benchmarks.

GLM-5.1 Z.ai (Zhipu)

47.8

Rank #59 Confirmed

Inkling Thinking Machines Lab

44.1

Rank #80 Confirmed

Summary

  • They share 32 benchmarks with published results for both. GLM-5.1 scores higher in 6 categories and Inkling in 3 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in math, where GLM-5.1 leads 49.7 to 31.3.
  • The biggest single-benchmark swing is WeirdML: 57.1% for GLM-5.1 and 32.3% for Inkling.
  • GLM-5.1 is cheaper at $1.40 / $4.40 per million input/output tokens, against $1.87 / $4.68 for Inkling.
  • GLM-5.1 accepts more context: 200K tokens versus 66K.

Side by side

GLM-5.1Inkling
ProviderZ.ai (Zhipu)Thinking Machines Lab
Noometry Index47.844.1
Released2026-04-072026-07-15
WeightsOpenOpen
Context window200K66K
Max output131K66K
Input $ / M tokens$1.40$1.87
Output $ / M tokens$4.40$4.68
Results tracked4141

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Category by category

Coding GLM-5.1 leads

GLM-5.1: 48.7 (#55), Inkling: 34.5 (#234)

BenchmarkGLM-5.1Inkling
LMArena WebDev15081413
SciCode43.8%47%
WeirdML57.1%32.3%
LMArena Coding14851464
ALE-Bench887.1946
SWE-bench Verified74.2%—
FrontierCode—14%
FrontierSWE—4.1%

Agentic & Tool Use Inkling leads

GLM-5.1: 24.9 (#113), Inkling: 29.6 (#85)

BenchmarkGLM-5.1Inkling
APEX-Agents40.9%33.8%
τ²-bench Banking—25%
ExploitBench18.1%—
GBAEval0%—
Vending-Bench 25,634—

Reasoning Inkling leads

GLM-5.1: 39.1 (#60), Inkling: 40.4 (#56)

BenchmarkGLM-5.1Inkling
SimpleBench55.1%50%
CritPt4.6%5.4%
Chess Puzzles19%21%
LMArena Hard Prompts14721451
Epoch Capabilities Index149.84148.54
ARC-AGI-2—36.5%
NYT Connections (extended)77.7%—
ARC-AGI-1—79.5%
Thematic Generalization69.8%—
DTBench—87.5%
LMCA—37.6%

Math GLM-5.1 leads

GLM-5.1: 49.7 (#60), Inkling: 31.3 (#225)

BenchmarkGLM-5.1Inkling
FrontierMath (Tiers 1-3)36.8%33.3%
OTIS Mock AIME 2024-202593.3%88.9%
ProofBench22.2%0%
LMArena Math14731479
FrontierMath Tier 4—4.9%
MathArena Final-Answer Competitions67.1%—
FrontierMath (Feb 2025 set)33.4%—
FrontierMath Tier 4 (v1)12.5%—

Knowledge Too close to call

GLM-5.1: 54.9 (#50), Inkling: 55.1 (#49)

BenchmarkGLM-5.1Inkling
GPQA Diamond89.9%88.3%
SimpleQA Verified34%40.3%
LMArena Expert14761465

Multilingual Too close to call

GLM-5.1: 55.0 (#36), Inkling: 54.0 (#52)

BenchmarkGLM-5.1Inkling
LMArena Non-English14471434
LMArena Chinese15151490
LMArena French14741458
LMArena German14651446
LMArena Japanese14341429
LMArena Korean14181404
LMArena Russian14541429
LMArena Spanish14691448

Instruction Following GLM-5.1 leads

GLM-5.1: 76.3 (#42), Inkling: 75.1 (#71)

BenchmarkGLM-5.1Inkling
LMArena Instruction Following14511426

Long Context GLM-5.1 leads

GLM-5.1: 44.9 (#53), Inkling: 43.8 (#86)

BenchmarkGLM-5.1Inkling
LMArena Longer Query14661434

Writing & Preference GLM-5.1 leads

GLM-5.1: 66.9 (#31), Inkling: 65.2 (#51)

BenchmarkGLM-5.1Inkling
LMArena Text14611441
LMArena Creative Writing14531387
EQ-Bench Creative Writing15921611
LMArena Multi-Turn14721436
EQ-Bench 4—1226

Frequently asked questions

Is GLM-5.1 better than Inkling?

GLM-5.1 is the stronger model overall, scoring 47.8 to 44.1 on the Noometry Index.

Which is cheaper, GLM-5.1 or Inkling?

GLM-5.1 is cheaper. It lists at $1.40 per million input tokens and $4.40 per million output tokens; Inkling lists at $1.87 and $4.68.

Is GLM-5.1 or Inkling better for coding?

GLM-5.1 scores higher on coding benchmarks: 48.7 versus 34.5 in the Noometry coding category.

Which has the bigger context window?

GLM-5.1 does, with 200K tokens against 66K.

How many benchmarks do GLM-5.1 and Inkling share?

32 benchmarks have published results for both models. GLM-5.1 has 41 scored results on Noometry and Inkling has 41.

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