# Gemini 3.1 Flash Lite vs GLM-4.5

> GLM-4.5 is the stronger model overall, scoring 42.0 to 40.8 on the Noometry Index. Gemini 3.1 Flash Lite costs 1.8× less per token, which makes it the better buy when GLM-4.5's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gemini-3-1-flash-lite-vs-glm-4-5
- Last updated: 2026-10-12
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 4 categories and GLM-4.5 in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 3.1 Flash Lite leads 41.9 to 35.9.
- The biggest single-benchmark swing is WeirdML: 52.2% for Gemini 3.1 Flash Lite and 40.6% for GLM-4.5.
- Gemini 3.1 Flash Lite is cheaper at $0.25 / $1.50 per million input/output tokens, against $0.60 / $2.20 for GLM-4.5.
- Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 131K.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| Provider | Google | Z.ai (Zhipu) |
| Noometry Index | 40.8 | 42.0 |
| Rank | 144 | 122 |
| Context | 1.05M | 131K |
| Input $/M | $0.25 | $0.60 |
| Output $/M | $1.50 | $2.20 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3.1 Flash Lite: 37.8 (#188)
- GLM-4.5: 41.4 (#125)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| WeirdML | 52.2% | 40.6% |
| LMArena Coding | 1400 | 1434 |
| ALE-Bench | 797.73 | 344.82 |
| SWE-bench Verified (bash only) | — | 54.2% |
| LMArena WebDev | 1256 | — |
| SciCode | 41.9% | — |
| AlgoTune | — | 1.52 |

## Agentic & Tool Use

- Gemini 3.1 Flash Lite: 30.2 (#79)
- GLM-4.5: —

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| DeepResearch Bench | 37.3% | — |

## Reasoning

- Gemini 3.1 Flash Lite: 22.9 (#186)
- GLM-4.5: 28.6 (#100)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| Kagi LLM Benchmark | 67.2% | 57.9% |
| LMArena Hard Prompts | 1407 | 1429 |
| NYT Connections (extended) | 8.2% | — |
| CritPt | 1.1% | — |
| Chess Puzzles | 25% | — |
| EnigmaEval | 3% | — |
| Thematic Generalization | 63.3% | — |
| DTBench | 76.8% | — |
| LMCA | 35% | — |
| Epoch Capabilities Index | 144.47 | — |
| ForecastBench | 54.4 | — |

## Math

- Gemini 3.1 Flash Lite: 40.7 (#90)
- GLM-4.5: 39.0 (#116)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| LMArena Math | 1428 | 1427 |
| FrontierMath (Tiers 1-3) | 27.7% | — |
| OTIS Mock AIME 2024-2025 | 80% | — |

## Knowledge

- Gemini 3.1 Flash Lite: 41.9 (#104)
- GLM-4.5: 35.9 (#179)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| Humanity's Last Exam | 8.6% | 8.3% |
| LMArena Expert | 1398 | 1433 |
| GPQA Diamond | 81.8% | — |
| Confabulations | — | 11.3% |
| Vectara Hallucination Rate | 8.2% | — |

## Multimodal

- Gemini 3.1 Flash Lite: 39.4 (#60)
- GLM-4.5: —

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| LMArena Vision | 1240 | — |

## Multilingual

- Gemini 3.1 Flash Lite: 52.3 (#86)
- GLM-4.5: 52.8 (#77)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| LMArena Non-English | 1411 | 1417 |
| LMArena Chinese | 1461 | 1465 |
| LMArena French | 1424 | 1418 |
| LMArena German | 1429 | 1407 |
| LMArena Japanese | 1413 | 1415 |
| LMArena Korean | 1392 | 1380 |
| LMArena Russian | 1420 | 1414 |
| LMArena Spanish | 1421 | 1454 |

## Instruction Following

- Gemini 3.1 Flash Lite: 72.7 (#131)
- GLM-4.5: 74.1 (#104)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| LMArena Instruction Following | 1377 | 1404 |

## Long Context

- Gemini 3.1 Flash Lite: 42.5 (#122)
- GLM-4.5: 38.2 (#201)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| LMArena Longer Query | 1394 | 1412 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- Gemini 3.1 Flash Lite: 60.9 (#94)
- GLM-4.5: 57.5 (#127)

| Benchmark | Gemini 3.1 Flash Lite | GLM-4.5 |
|---|---|---|
| LMArena Text | 1416 | 1430 |
| LMArena Creative Writing | 1401 | 1395 |
| LMArena Multi-Turn | 1417 | 1415 |
| Short-Story Creative Writing | — | 73.4% |
| EQ-Bench Creative Writing | — | 1343 |

## FAQ

### Is Gemini 3.1 Flash Lite better than GLM-4.5?

GLM-4.5 is the stronger model overall, scoring 42.0 to 40.8 on the Noometry Index. Gemini 3.1 Flash Lite costs 1.8× less per token, which makes it the better buy when GLM-4.5's lead doesn't matter for your workload.

### Which is cheaper, Gemini 3.1 Flash Lite or GLM-4.5?

Gemini 3.1 Flash Lite is cheaper. It lists at $0.25 per million input tokens and $1.50 per million output tokens; GLM-4.5 lists at $0.60 and $2.20.

### Is Gemini 3.1 Flash Lite or GLM-4.5 better for coding?

GLM-4.5 scores higher on coding benchmarks: 41.4 versus 37.8 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3.1 Flash Lite does, with 1.05M tokens against 131K.

### How many benchmarks do Gemini 3.1 Flash Lite and GLM-4.5 share?

21 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and GLM-4.5 has 27.