Noometry

Model comparison

GLM-4.5-Air vs Inkling-Small

Inkling-Small is the stronger model overall, scoring 46.5 to 38.9 on the Noometry Index.

Last verified . 17 shared benchmarks.

GLM-4.5-Air Z.ai (Zhipu)

38.9

Rank #177 Confirmed

Inkling-Small Thinking Machines Lab

46.5

Rank #63 Confirmed

Summary

  • They share 17 benchmarks with published results for both. GLM-4.5-Air scores higher in 0 categories and Inkling-Small in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Inkling-Small leads 38.6 to 24.1.
  • GLM-4.5-Air is cheaper at $0.20 / $1.10 per million input/output tokens, against $0.45 / $1.20 for Inkling-Small.
  • Inkling-Small accepts more context: 524K tokens versus 131K.

Side by side

GLM-4.5-AirInkling-Small
ProviderZ.ai (Zhipu)Thinking Machines Lab
Noometry Index38.946.5
Released2025-07-202026-07-15
WeightsOpenOpen
Context window131K524K
Max output98K1.05M
Input $ / M tokens$0.20$0.45
Output $ / M tokens$1.10$1.20
Results tracked2733

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Category by category

Coding Inkling-Small leads

GLM-4.5-Air: 33.3 (#259), Inkling-Small: 43.6 (#85)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Coding13971451
LMArena WebDev—1409
SciCode—48.7%
GSO2.9%—

Reasoning Inkling-Small leads

GLM-4.5-Air: 24.1 (#166), Inkling-Small: 38.6 (#63)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Hard Prompts13791423
ARC-AGI-2—40.1%
Kagi LLM Benchmark43%—
ARC-AGI-1—84%
CritPt—8.3%
Chess Puzzles—18%
Mystery Game Puzzles—6%
Epoch Capabilities Index—150.15
ForecastBench59.2—

Math Inkling-Small leads

GLM-4.5-Air: 36.2 (#170), Inkling-Small: 45.1 (#77)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Math13961459
FrontierMath (Tiers 1-3)—46.3%
FrontierMath Tier 4—17.1%
OTIS Mock AIME 2024-2025—90%
ProofBench—6%
Omni-MATH39.1%—

Knowledge Inkling-Small leads

GLM-4.5-Air: 35.0 (#191), Inkling-Small: 48.2 (#77)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Expert13701442
GPQA Diamond—88.5%
Humanity's Last Exam8.1%—
SimpleQA Verified—19.1%
MMLU-Pro76.2%—
Vectara Hallucination Rate9.3%—
GPQA (HELM)59.4%—

Multimodal Not comparable

GLM-4.5-Air: —, Inkling-Small: 39.1 (#62)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Vision—1235

Multilingual Inkling-Small leads

GLM-4.5-Air: 49.1 (#135), Inkling-Small: 51.7 (#104)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Non-English13661402
LMArena Chinese14261465
LMArena French13991436
LMArena German13771405
LMArena Japanese13481405
LMArena Korean13081363
LMArena Russian13731391
LMArena Spanish13861428

Instruction Following Inkling-Small leads

GLM-4.5-Air: 69.6 (#171), Inkling-Small: 73.8 (#114)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Instruction Following13541399
IFEval81.2%—

Long Context Inkling-Small leads

GLM-4.5-Air: 41.6 (#135), Inkling-Small: 42.7 (#118)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Longer Query13661401

Writing & Preference Inkling-Small leads

GLM-4.5-Air: 55.9 (#139), Inkling-Small: 59.6 (#107)

BenchmarkGLM-4.5-AirInkling-Small
LMArena Text13841414
LMArena Creative Writing13431331
LMArena Multi-Turn13711418
EQ-Bench Creative Writing—1491
WildBench78.9%—

Frequently asked questions

Is GLM-4.5-Air better than Inkling-Small?

Inkling-Small is the stronger model overall, scoring 46.5 to 38.9 on the Noometry Index.

Which is cheaper, GLM-4.5-Air or Inkling-Small?

GLM-4.5-Air is cheaper. It lists at $0.20 per million input tokens and $1.10 per million output tokens; Inkling-Small lists at $0.45 and $1.20.

Is GLM-4.5-Air or Inkling-Small better for coding?

Inkling-Small scores higher on coding benchmarks: 43.6 versus 33.3 in the Noometry coding category.

Which has the bigger context window?

Inkling-Small does, with 524K tokens against 131K.

How many benchmarks do GLM-4.5-Air and Inkling-Small share?

17 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and Inkling-Small has 33.

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