# Gemini 3 Flash Preview vs GLM-4.5

> Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 42.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-flash-preview-vs-glm-4-5
- Last updated: 2026-10-11
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Gemini 3 Flash Preview scores higher in 8 categories and GLM-4.5 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 3 Flash Preview leads 58.8 to 35.9.
- The biggest single-benchmark swing is SWE-bench Verified (bash only): 75.8% for Gemini 3 Flash Preview and 54.2% for GLM-4.5.
- GLM-4.5 is cheaper at $0.60 / $2.20 per million input/output tokens, against $0.50 / $3 for Gemini 3 Flash Preview.
- Gemini 3 Flash Preview accepts more context: 1.05M tokens versus 131K.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| Provider | Google | Z.ai (Zhipu) |
| Noometry Index | 52.3 | 42.0 |
| Rank | 40 | 122 |
| Context | 1.05M | 131K |
| Input $/M | $0.50 | $0.60 |
| Output $/M | $3 | $2.20 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3 Flash Preview: 50.9 (#42)
- GLM-4.5: 41.4 (#125)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| SWE-bench Verified (bash only) | 75.8% | 54.2% |
| WeirdML | 61.6% | 40.6% |
| LMArena Coding | 1460 | 1434 |
| ALE-Bench | 1,367 | 344.82 |
| SWE-bench Verified | 75.4% | — |
| LMArena WebDev | 1439 | — |
| SWE-bench Multilingual | 72.7% | — |
| GSO | 9.8% | — |
| AlgoTune | — | 1.52 |

## Agentic & Tool Use

- Gemini 3 Flash Preview: 38.7 (#29)
- GLM-4.5: —

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| Terminal-Bench | 64.3% | — |
| τ²-bench Airline | 82.5% | — |
| τ²-bench Banking | 27.3% | — |
| τ²-bench Retail | 76.8% | — |
| τ²-bench Telecom | 91.2% | — |
| DeepResearch Bench | 49.8% | — |
| BALROG | 48.1% | — |
| GDP.pdf | 10% | — |
| LMArena Search | 1198 | — |
| Vending-Bench 2 | 3,635 | — |

## Reasoning

- Gemini 3 Flash Preview: 49.2 (#37)
- GLM-4.5: 28.6 (#100)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Hard Prompts | 1465 | 1429 |
| ARC-AGI-2 | 33.6% | — |
| SimpleBench | 61.1% | — |
| Kagi LLM Benchmark | — | 57.9% |
| NYT Connections (extended) | 83.1% | — |
| ARC-AGI-1 | 84.7% | — |
| Chess Puzzles | 40% | — |
| Mystery Game Puzzles | 26% | — |
| DTBench | 89.1% | — |
| LMCA | 43.1% | — |
| Epoch Capabilities Index | 151.8 | — |
| ForecastBench | 58.5 | — |

## Math

- Gemini 3 Flash Preview: 51.7 (#55)
- GLM-4.5: 39.0 (#116)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Math | 1473 | 1427 |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 17.1% | — |
| MathArena Final-Answer Competitions | 67.6% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 15% | — |
| FrontierMath (Feb 2025 set) | 35.6% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 3 Flash Preview: 58.8 (#33)
- GLM-4.5: 35.9 (#179)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Expert | 1462 | 1433 |
| GPQA Diamond | 89.4% | — |
| Humanity's Last Exam | — | 8.3% |
| SimpleQA Verified | 66.8% | — |
| Confabulations | — | 11.3% |
| Vectara Hallucination Rate | 13.5% | — |

## Multimodal

- Gemini 3 Flash Preview: 45.5 (#16)
- GLM-4.5: —

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Vision | 1285 | — |
| GeoBench | 88% | — |
| VPCT | 72.6% | — |
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1413 | — |

## Multilingual

- Gemini 3 Flash Preview: 55.7 (#27)
- GLM-4.5: 52.8 (#77)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Non-English | 1458 | 1417 |
| LMArena Chinese | 1511 | 1465 |
| LMArena French | 1477 | 1418 |
| LMArena German | 1497 | 1407 |
| LMArena Japanese | 1489 | 1415 |
| LMArena Korean | 1443 | 1380 |
| LMArena Russian | 1480 | 1414 |
| LMArena Spanish | 1469 | 1454 |

## Instruction Following

- Gemini 3 Flash Preview: 75.7 (#56)
- GLM-4.5: 74.1 (#104)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Instruction Following | 1437 | 1404 |

## Long Context

- Gemini 3 Flash Preview: 44.4 (#67)
- GLM-4.5: 38.2 (#201)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Longer Query | 1452 | 1412 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- Gemini 3 Flash Preview: 65.5 (#45)
- GLM-4.5: 57.5 (#127)

| Benchmark | Gemini 3 Flash Preview | GLM-4.5 |
|---|---|---|
| LMArena Text | 1466 | 1430 |
| LMArena Creative Writing | 1457 | 1395 |
| LMArena Multi-Turn | 1471 | 1415 |
| Short-Story Creative Writing | — | 73.4% |
| EQ-Bench Creative Writing | — | 1343 |

## FAQ

### Is Gemini 3 Flash Preview better than GLM-4.5?

Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 42.0 on the Noometry Index.

### Which is cheaper, Gemini 3 Flash Preview or GLM-4.5?

GLM-4.5 is cheaper. It lists at $0.60 per million input tokens and $2.20 per million output tokens; Gemini 3 Flash Preview lists at $0.50 and $3.

### Is Gemini 3 Flash Preview or GLM-4.5 better for coding?

Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 41.4 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3 Flash Preview does, with 1.05M tokens against 131K.

### How many benchmarks do Gemini 3 Flash Preview and GLM-4.5 share?

20 benchmarks have published results for both models. Gemini 3 Flash Preview has 59 scored results on Noometry and GLM-4.5 has 27.