Noometry

Model comparison

GLM-4.7-Flash vs GPT-5.5 Instant

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 38.8 on the Noometry Index.

Last verified . 19 shared benchmarks.

GLM-4.7-Flash Z.ai (Zhipu)

38.8

Rank #180 Confirmed

GPT-5.5 Instant OpenAI

42.7

Rank #110 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GLM-4.7-Flash scores higher in 1 category and GPT-5.5 Instant in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where GPT-5.5 Instant leads 61.8 to 47.4.
  • The biggest single-benchmark swing is GPQA Diamond: 60.5% for GLM-4.7-Flash and 82.5% for GPT-5.5 Instant.
  • GLM-4.7-Flash has downloadable open weights; the other is API-only.

Side by side

GLM-4.7-FlashGPT-5.5 Instant
ProviderZ.ai (Zhipu)OpenAI
Noometry Index38.842.7
Released2026-01-192026-05-05
WeightsOpenProprietary
Context window200K—
Max output131K—
Input $ / M tokens$0.06—
Output $ / M tokens$0.40—
Results tracked2127

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Category by category

Coding GPT-5.5 Instant leads

GLM-4.7-Flash: 40.6 (#135), GPT-5.5 Instant: 44.3 (#74)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
LMArena Coding13831433
SciCode—48.6%

Reasoning GPT-5.5 Instant leads

GLM-4.7-Flash: 20.9 (#229), GPT-5.5 Instant: 24.9 (#155)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
Chess Puzzles0%12%
LMArena Hard Prompts13561426
CritPt—0%
Epoch Capabilities Index—142.52

Math GLM-4.7-Flash leads

GLM-4.7-Flash: 36.1 (#173), GPT-5.5 Instant: 26.5 (#259)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
OTIS Mock AIME 2024-202558.3%68.1%
LMArena Math13551420
FrontierMath (Tiers 1-3)—26.3%
FrontierMath Tier 4—2.4%

Knowledge GPT-5.5 Instant leads

GLM-4.7-Flash: 35.5 (#184), GPT-5.5 Instant: 48.9 (#74)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
GPQA Diamond60.5%82.5%
LMArena Expert13571409
Vectara Hallucination Rate9.3%—

Multimodal Not comparable

GLM-4.7-Flash: —, GPT-5.5 Instant: 40.0 (#52)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
LMArena Vision—1250
LMArena Document—1403

Multilingual GPT-5.5 Instant leads

GLM-4.7-Flash: 46.5 (#158), GPT-5.5 Instant: 52.8 (#80)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
LMArena Non-English13301417
LMArena Chinese14031456
LMArena French13321428
LMArena German13371411
LMArena Korean12831392
LMArena Russian13321431
LMArena Spanish13501429
LMArena Japanese—1408

Instruction Following GPT-5.5 Instant leads

GLM-4.7-Flash: 70.1 (#167), GPT-5.5 Instant: 74.2 (#100)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
LMArena Instruction Following13271406

Long Context GPT-5.5 Instant leads

GLM-4.7-Flash: 40.9 (#148), GPT-5.5 Instant: 43.4 (#96)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
LMArena Longer Query13451422

Writing & Preference GPT-5.5 Instant leads

GLM-4.7-Flash: 47.4 (#210), GPT-5.5 Instant: 61.8 (#85)

BenchmarkGLM-4.7-FlashGPT-5.5 Instant
LMArena Text13511419
LMArena Creative Writing12971419
LMArena Multi-Turn13421433
EQ-Bench Creative Writing1125—

Frequently asked questions

Is GLM-4.7-Flash better than GPT-5.5 Instant?

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 38.8 on the Noometry Index.

Is GLM-4.7-Flash or GPT-5.5 Instant better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 40.6 in the Noometry coding category.

How many benchmarks do GLM-4.7-Flash and GPT-5.5 Instant share?

19 benchmarks have published results for both models. GLM-4.7-Flash has 21 scored results on Noometry and GPT-5.5 Instant has 27.

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