Noometry

Model comparison

Gemini 3.5 Flash vs GLM-5.2

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 51.1 on the Noometry Index. GLM-5.2 costs 1.6× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.

Last verified . 46 shared benchmarks.

Gemini 3.5 Flash Google

54.2

Rank #32 Confirmed

GLM-5.2 Z.ai (Zhipu)

51.1

Rank #44 Confirmed

Summary

  • They share 46 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 6 categories and GLM-5.2 in 3 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 42.3.
  • The biggest single-benchmark swing is ARC-AGI-2: 72.1% for Gemini 3.5 Flash and 22.8% for GLM-5.2.
  • GLM-5.2 is cheaper at $1.40 / $4.40 per million input/output tokens, against $1.50 / $9 for Gemini 3.5 Flash.
  • Gemini 3.5 Flash accepts more context: 1.05M tokens versus 1M.
  • GLM-5.2 has downloadable open weights; the other is API-only.

Side by side

Gemini 3.5 FlashGLM-5.2
ProviderGoogleZ.ai (Zhipu)
Noometry Index54.251.1
Released2026-05-192026-06-13
WeightsProprietaryOpen
Context window1.05M1M
Max output66K131K
Input $ / M tokens$1.50$1.40
Output $ / M tokens$9$4.40
Results tracked5451

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Category by category

Coding GLM-5.2 leads

Gemini 3.5 Flash: 49.4 (#49), GLM-5.2: 51.3 (#41)

BenchmarkGemini 3.5 FlashGLM-5.2
SWE-bench Verified79.3%78.7%
DeepSWE37.4%43.8%
LMArena WebDev14991603
SciCode53.1%50.5%
WeirdML62.6%70.1%
LMArena Coding14921485
ALE-Bench911.021,047
FrontierCode—24.5%

Agentic & Tool Use GLM-5.2 leads

Gemini 3.5 Flash: 24.7 (#114), GLM-5.2: 32.4 (#63)

BenchmarkGemini 3.5 FlashGLM-5.2
APEX-Agents27.5%45.2%
GBAEval6.7%0%
Vending-Bench 25,3968,314
τ²-bench Banking—37.1%
PostTrainBench—31.7%
GDP.pdf14%—

Reasoning Gemini 3.5 Flash leads

Gemini 3.5 Flash: 62.8 (#18), GLM-5.2: 42.3 (#52)

BenchmarkGemini 3.5 FlashGLM-5.2
ARC-AGI-272.1%22.8%
SimpleBench76.7%58.8%
NYT Connections (extended)92.6%74.3%
ARC-AGI-192.5%77%
CritPt13.1%20.9%
Chess Puzzles50%21%
EBR-Bench4.8%9.5%
LMArena Hard Prompts14881480
Mystery Game Puzzles32%19%
DTBench94.7%93.6%
LMCA47.1%45.8%
Surface Evolver Bench58.1%55.6%
Epoch Capabilities Index154.46151.78
Kagi LLM Benchmark—62.6%
EnigmaEval25.4%—
ForecastBench59—

Math Gemini 3.5 Flash leads

Gemini 3.5 Flash: 60.7 (#36), GLM-5.2: 55.7 (#43)

BenchmarkGemini 3.5 FlashGLM-5.2
FrontierMath (Tiers 1-3)62.8%59.2%
FrontierMath Tier 426.8%29.3%
MathArena Final-Answer Competitions76.3%67.6%
OTIS Mock AIME 2024-202595.6%86.4%
ProofBench31%35%
LMArena Math15041482
FrontierMath (Feb 2025 set)39%—
FrontierMath Tier 4 (v1)14.6%—

Knowledge Gemini 3.5 Flash leads

Gemini 3.5 Flash: 66.3 (#11), GLM-5.2: 57.1 (#40)

BenchmarkGemini 3.5 FlashGLM-5.2
GPQA Diamond92.8%91.9%
SimpleQA Verified66.2%34.2%
LMArena Expert14951486

Multimodal Not comparable

Gemini 3.5 Flash: 45.7 (#15), GLM-5.2: —

BenchmarkGemini 3.5 FlashGLM-5.2
LMArena Vision1310—
Blueprint-Bench 233.6%—
LMArena Document1463—

Multilingual Gemini 3.5 Flash leads

Gemini 3.5 Flash: 57.0 (#13), GLM-5.2: 55.8 (#26)

BenchmarkGemini 3.5 FlashGLM-5.2
LMArena Non-English14761459
LMArena Chinese15261519
LMArena French14901479
LMArena German14921468
LMArena Japanese14861451
LMArena Korean14511445
LMArena Russian14931466
LMArena Spanish14801477

Instruction Following Too close to call

Gemini 3.5 Flash: 77.0 (#30), GLM-5.2: 76.9 (#34)

BenchmarkGemini 3.5 FlashGLM-5.2
LMArena Instruction Following14671465

Long Context Too close to call

Gemini 3.5 Flash: 45.4 (#38), GLM-5.2: 45.3 (#43)

BenchmarkGemini 3.5 FlashGLM-5.2
LMArena Longer Query14821479

Writing & Preference GLM-5.2 leads

Gemini 3.5 Flash: 65.5 (#47), GLM-5.2: 70.4 (#21)

BenchmarkGemini 3.5 FlashGLM-5.2
LMArena Text14821470
LMArena Creative Writing14701462
EQ-Bench 410871222
LMArena Multi-Turn14811469
EQ-Bench Creative Writing—1757

Frequently asked questions

Is Gemini 3.5 Flash better than GLM-5.2?

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 51.1 on the Noometry Index. GLM-5.2 costs 1.6× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.5 Flash or GLM-5.2?

GLM-5.2 is cheaper. It lists at $1.40 per million input tokens and $4.40 per million output tokens; Gemini 3.5 Flash lists at $1.50 and $9.

Is Gemini 3.5 Flash or GLM-5.2 better for coding?

GLM-5.2 scores higher on coding benchmarks: 51.3 versus 49.4 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.5 Flash does, with 1.05M tokens against 1M.

How many benchmarks do Gemini 3.5 Flash and GLM-5.2 share?

46 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and GLM-5.2 has 51.

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