Model comparison

Gemini 3.6 Flash vs GLM-5.1

Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 47.8 on the Noometry Index.

Last verified . 33 shared benchmarks.

Gemini 3.6 Flash Google

54.1

Rank #33 Confirmed

GLM-5.1 Z.ai (Zhipu)

47.8

Rank #59 Confirmed

Summary

  • They share 33 benchmarks with published results for both. Gemini 3.6 Flash scores higher in 9 categories and GLM-5.1 in 0 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.6 Flash leads 58.8 to 39.1.
  • The biggest single-benchmark swing is SimpleQA Verified: 66.2% for Gemini 3.6 Flash and 34% for GLM-5.1.
  • Gemini 3.6 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $1.40 / $4.40 for GLM-5.1.
  • Gemini 3.6 Flash accepts more context: 1.05M tokens versus 200K.
  • GLM-5.1 has downloadable open weights; the other is API-only.

Side by side

Gemini 3.6 Flash and GLM-5.1 specifications
Gemini 3.6 FlashGLM-5.1
ProviderGoogleZ.ai (Zhipu)
Noometry Index54.147.8
Released2026-07-212026-04-07
WeightsProprietaryOpen
Context window1.05M200K
Max output66K131K
Input $ / M tokens$0.75$1.40
Output $ / M tokens$3.75$4.40
Results tracked4641

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Category by category

Coding Gemini 3.6 Flash leads

Gemini 3.6 Flash: 50.0 (#48), GLM-5.1: 48.7 (#55)

Coding benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
LMArena WebDev15381508
SciCode52.7%43.8%
WeirdML56.1%57.1%
LMArena Coding14911485
ALE-Bench715.52887.1
SWE-bench Verified—74.2%
DeepSWE46.7%—
FrontierCode34.4%—

Agentic & Tool Use Gemini 3.6 Flash leads

Gemini 3.6 Flash: 32.3 (#65), GLM-5.1: 24.9 (#113)

Agentic & Tool Use benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
APEX-Agents46.9%40.9%
ExploitBench—18.1%
GBAEval—0%
GDP.pdf14%—
Vending-Bench 2—5,634

Reasoning Gemini 3.6 Flash leads

Gemini 3.6 Flash: 58.8 (#22), GLM-5.1: 39.1 (#60)

Reasoning benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
NYT Connections (extended)89%77.7%
CritPt10.6%4.6%
Chess Puzzles43%19%
LMArena Hard Prompts14851472
Epoch Capabilities Index154.25149.84
ARC-AGI-260.4%—
SimpleBench—55.1%
ARC-AGI-191.2%—
Thematic Generalization—69.8%
Mystery Game Puzzles30%—
DTBench95.5%—
LMCA44.9%—

Math Gemini 3.6 Flash leads

Gemini 3.6 Flash: 57.3 (#40), GLM-5.1: 49.7 (#60)

Knowledge Gemini 3.6 Flash leads

Gemini 3.6 Flash: 67.8 (#8), GLM-5.1: 54.9 (#50)

Knowledge benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
GPQA Diamond94.1%89.9%
SimpleQA Verified66.2%34%
LMArena Expert14881476

Multimodal Not comparable

Gemini 3.6 Flash: 38.5 (#64), GLM-5.1: —

Multimodal benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
LMArena Vision1298—
Blueprint-Bench 231.2%—
Furniture Assembly23.3%—
LMArena Document1456—

Multilingual Gemini 3.6 Flash leads

Gemini 3.6 Flash: 56.5 (#19), GLM-5.1: 55.0 (#36)

Multilingual benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
LMArena Non-English14691447
LMArena Chinese15311515
LMArena French15041474
LMArena German14781465
LMArena Japanese14761434
LMArena Korean14311418
LMArena Russian14871454
LMArena Spanish14751469

Instruction Following Too close to call

Gemini 3.6 Flash: 77.0 (#33), GLM-5.1: 76.3 (#42)

Instruction Following benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
LMArena Instruction Following14661451

Long Context Too close to call

Gemini 3.6 Flash: 45.1 (#50), GLM-5.1: 44.9 (#53)

Long Context benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
LMArena Longer Query14741466

Writing & Preference Gemini 3.6 Flash leads

Gemini 3.6 Flash: 68.2 (#27), GLM-5.1: 66.9 (#31)

Writing & Preference benchmarks
BenchmarkGemini 3.6 FlashGLM-5.1
LMArena Text14791461
LMArena Creative Writing14651453
EQ-Bench Creative Writing16041592
LMArena Multi-Turn14811472

Frequently asked questions

Is Gemini 3.6 Flash better than GLM-5.1?

Gemini 3.6 Flash is the stronger model overall, scoring 54.1 to 47.8 on the Noometry Index.

Which is cheaper, Gemini 3.6 Flash or GLM-5.1?

Gemini 3.6 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; GLM-5.1 lists at $1.40 and $4.40.

Is Gemini 3.6 Flash or GLM-5.1 better for coding?

Gemini 3.6 Flash scores higher on coding benchmarks: 50.0 versus 48.7 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.6 Flash does, with 1.05M tokens against 200K.

How many benchmarks do Gemini 3.6 Flash and GLM-5.1 share?

33 benchmarks have published results for both models. Gemini 3.6 Flash has 46 scored results on Noometry and GLM-5.1 has 41.

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