Noometry

Model comparison

GLM-5.3-Flash vs Mistral Small 3

GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 31.2 on the Noometry Index. Mistral Small 3 costs 4.1× less per token, which makes it the better buy when GLM-5.3-Flash's lead doesn't matter for your workload.

Last verified . 20 shared benchmarks.

GLM-5.3-Flash Z.ai (Zhipu)

51.8

Rank #41 Confirmed

Mistral Small 3 Mistral AI

31.2

Rank #278 Confirmed

Summary

  • They share 20 benchmarks with published results for both. GLM-5.3-Flash scores higher in 8 categories and Mistral Small 3 in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GLM-5.3-Flash leads 53.3 to 16.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 93.9% for GLM-5.3-Flash and 6.7% for Mistral Small 3.
  • Mistral Small 3 is cheaper at $0.05 / $0.08 per million input/output tokens, against $0.15 / $0.50 for GLM-5.3-Flash.
  • GLM-5.3-Flash accepts more context: 1M tokens versus 33K.

Side by side

GLM-5.3-FlashMistral Small 3
ProviderZ.ai (Zhipu)Mistral AI
Noometry Index51.831.2
Released2026-08-202025-01-30
WeightsOpenOpen
Context window1M33K
Max output131K16K
Input $ / M tokens$0.15$0.05
Output $ / M tokens$0.50$0.08
Results tracked4024

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding GLM-5.3-Flash leads

GLM-5.3-Flash: 53.1 (#31), Mistral Small 3: 36.5 (#207)

BenchmarkGLM-5.3-FlashMistral Small 3
LMArena Coding15081246
DeepSWE63.4%—
FrontierCode31.8%—
CursorBench36.8%—
LMArena WebDev1609—
FrontierSWE18.1%—
SciCode51.6%—
BigCodeBench Instruct—45.3%
BigCodeBench Complete—50.4%
ALE-Bench303.55—

Agentic & Tool Use Not comparable

GLM-5.3-Flash: 34.2 (#47), Mistral Small 3: —

BenchmarkGLM-5.3-FlashMistral Small 3
APEX-Agents52.8%—
GDP.pdf14%—

Reasoning GLM-5.3-Flash leads

GLM-5.3-Flash: 48.0 (#42), Mistral Small 3: 18.9 (#273)

BenchmarkGLM-5.3-FlashMistral Small 3
Chess Puzzles14%0%
LMArena Hard Prompts14911233
Epoch Capabilities Index151.88127.07
ARC-AGI-265.8%—
ARC-AGI-191%—
CritPt15.4%—
Mystery Game Puzzles8%—
Surface Evolver Bench52.5%—
Bench to the Future 30.15—

Math GLM-5.3-Flash leads

GLM-5.3-Flash: 53.3 (#47), Mistral Small 3: 16.3 (#295)

BenchmarkGLM-5.3-FlashMistral Small 3
OTIS Mock AIME 2024-202593.9%6.7%
LMArena Math15001240
FrontierMath (Tiers 1-3)55.8%—
FrontierMath Tier 417.1%—
ProofBench21%—

Knowledge GLM-5.3-Flash leads

GLM-5.3-Flash: 58.4 (#36), Mistral Small 3: 25.1 (#263)

BenchmarkGLM-5.3-FlashMistral Small 3
GPQA Diamond90.2%47.3%
LMArena Expert15131202
Confabulations—25.2%

Multimodal Not comparable

GLM-5.3-Flash: 42.8 (#27), Mistral Small 3: —

BenchmarkGLM-5.3-FlashMistral Small 3
LMArena Vision1296—

Multilingual GLM-5.3-Flash leads

GLM-5.3-Flash: 56.0 (#25), Mistral Small 3: 37.3 (#236)

BenchmarkGLM-5.3-FlashMistral Small 3
LMArena Non-English14621198
LMArena Chinese15271204
LMArena French14961203
LMArena German14701211
LMArena Japanese14291111
LMArena Korean14461188
LMArena Russian14691216
LMArena Spanish1471—

Instruction Following GLM-5.3-Flash leads

GLM-5.3-Flash: 77.5 (#20), Mistral Small 3: 63.7 (#229)

BenchmarkGLM-5.3-FlashMistral Small 3
LMArena Instruction Following14781214

Long Context GLM-5.3-Flash leads

GLM-5.3-Flash: 45.4 (#39), Mistral Small 3: 37.8 (#211)

BenchmarkGLM-5.3-FlashMistral Small 3
LMArena Longer Query14821246

Writing & Preference GLM-5.3-Flash leads

GLM-5.3-Flash: 65.3 (#50), Mistral Small 3: 32.2 (#280)

BenchmarkGLM-5.3-FlashMistral Small 3
LMArena Text14711234
LMArena Creative Writing14421195
LMArena Multi-Turn14671217
EQ-Bench Creative Writing—707

Frequently asked questions

Is GLM-5.3-Flash better than Mistral Small 3?

GLM-5.3-Flash is the stronger model overall, scoring 51.8 to 31.2 on the Noometry Index. Mistral Small 3 costs 4.1× less per token, which makes it the better buy when GLM-5.3-Flash's lead doesn't matter for your workload.

Which is cheaper, GLM-5.3-Flash or Mistral Small 3?

Mistral Small 3 is cheaper. It lists at $0.05 per million input tokens and $0.08 per million output tokens; GLM-5.3-Flash lists at $0.15 and $0.50.

Is GLM-5.3-Flash or Mistral Small 3 better for coding?

GLM-5.3-Flash scores higher on coding benchmarks: 53.1 versus 36.5 in the Noometry coding category.

Which has the bigger context window?

GLM-5.3-Flash does, with 1M tokens against 33K.

How many benchmarks do GLM-5.3-Flash and Mistral Small 3 share?

20 benchmarks have published results for both models. GLM-5.3-Flash has 40 scored results on Noometry and Mistral Small 3 has 24.

Related comparisons

Go deeper