# GLM-5.3 vs Mistral Small 3

> GLM-5.3 is the stronger model overall, scoring 54.8 to 31.2 on the Noometry Index. Mistral Small 3 costs 37× less per token, which makes it the better buy when GLM-5.3's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/glm-5-3-vs-mistral-small-3
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. GLM-5.3 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 leads 62.3 to 16.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 91.1% for GLM-5.3 and 6.7% for Mistral Small 3.
- Mistral Small 3 is cheaper at $0.05 / $0.08 per million input/output tokens, against $1.40 / $4.40 for GLM-5.3.
- GLM-5.3 accepts more context: 1M tokens versus 33K.

## Snapshot

| | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| Provider | Z.ai (Zhipu) | Mistral AI |
| Noometry Index | 54.8 | 31.2 |
| Rank | 26 | 278 |
| Context | 1M | 33K |
| Input $/M | $1.40 | $0.05 |
| Output $/M | $4.40 | $0.08 |
| Weights | Open | Open |

## Coding

- GLM-5.3: 59.5 (#14)
- Mistral Small 3: 36.5 (#207)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| LMArena Coding | 1496 | 1246 |
| DeepSWE | 69% | — |
| FrontierCode | 40.1% | — |
| CursorBench | 42.6% | — |
| LMArena WebDev | 1622 | — |
| FrontierSWE | 30.2% | — |
| SciCode | 59% | — |
| WeirdML | 75.4% | — |
| BigCodeBench Instruct | — | 45.3% |
| BigCodeBench Complete | — | 50.4% |
| ALE-Bench | 1,317 | — |

## Agentic & Tool Use

- GLM-5.3: 36.4 (#38)
- Mistral Small 3: —

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| APEX-Agents | 56.6% | — |
| Vending-Bench 2 | 8,164 | — |

## Reasoning

- GLM-5.3: 46.1 (#46)
- Mistral Small 3: 18.9 (#273)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| Chess Puzzles | 21% | 0% |
| LMArena Hard Prompts | 1489 | 1233 |
| Epoch Capabilities Index | 155.61 | 127.07 |
| NYT Connections (extended) | 74.2% | — |
| CritPt | 19.1% | — |
| Mystery Game Puzzles | 33% | — |
| DTBench | 87.7% | — |
| LMCA | 55.5% | — |
| Bench to the Future 3 | 0.15 | — |

## Math

- GLM-5.3: 62.3 (#33)
- Mistral Small 3: 16.3 (#295)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 91.1% | 6.7% |
| LMArena Math | 1489 | 1240 |
| FrontierMath (Tiers 1-3) | 68.8% | — |
| FrontierMath Tier 4 | 29.3% | — |
| ProofBench | 49% | — |

## Knowledge

- GLM-5.3: 58.3 (#37)
- Mistral Small 3: 25.1 (#263)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| GPQA Diamond | 90.9% | 47.3% |
| LMArena Expert | 1516 | 1202 |
| SimpleQA Verified | 41% | — |
| Confabulations | — | 25.2% |

## Multilingual

- GLM-5.3: 55.7 (#28)
- Mistral Small 3: 37.3 (#236)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| LMArena Non-English | 1457 | 1198 |
| LMArena Chinese | 1528 | 1204 |
| LMArena French | 1499 | 1203 |
| LMArena German | 1499 | 1211 |
| LMArena Japanese | 1453 | 1111 |
| LMArena Korean | 1472 | 1188 |
| LMArena Russian | 1463 | 1216 |
| LMArena Spanish | 1460 | — |

## Instruction Following

- GLM-5.3: 77.5 (#23)
- Mistral Small 3: 63.7 (#229)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| LMArena Instruction Following | 1477 | 1214 |

## Long Context

- GLM-5.3: 45.4 (#41)
- Mistral Small 3: 37.8 (#211)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| LMArena Longer Query | 1482 | 1246 |

## Writing & Preference

- GLM-5.3: 75.7 (#6)
- Mistral Small 3: 32.2 (#280)

| Benchmark | GLM-5.3 | Mistral Small 3 |
|---|---|---|
| LMArena Text | 1471 | 1234 |
| LMArena Creative Writing | 1457 | 1195 |
| EQ-Bench Creative Writing | 2075 | 707 |
| LMArena Multi-Turn | 1472 | 1217 |

## FAQ

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

GLM-5.3 is the stronger model overall, scoring 54.8 to 31.2 on the Noometry Index. Mistral Small 3 costs 37× less per token, which makes it the better buy when GLM-5.3's lead doesn't matter for your workload.

### Which is cheaper, GLM-5.3 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 lists at $1.40 and $4.40.

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

GLM-5.3 scores higher on coding benchmarks: 59.5 versus 36.5 in the Noometry coding category.

### Which has the bigger context window?

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

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

21 benchmarks have published results for both models. GLM-5.3 has 42 scored results on Noometry and Mistral Small 3 has 24.