# GLM-4.5V vs Grok 4.20 Multi-Agent

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 39.2 on the Noometry Index. GLM-4.5V costs 1.7× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/glm-4-5v-vs-grok-4-20-multi-agent
- Last updated: 2026-10-10
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. GLM-4.5V scores higher in 0 categories and Grok 4.20 Multi-Agent in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 42.4 to 26.5.
- GLM-4.5V is cheaper at $0.60 / $1.80 per million input/output tokens, against $1.25 / $2.50 for Grok 4.20 Multi-Agent.
- Grok 4.20 Multi-Agent accepts more context: 1M tokens versus 64K.
- GLM-4.5V has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| Provider | Z.ai (Zhipu) | xAI |
| Noometry Index | 39.2 | 45.5 |
| Rank | 158 | 62 |
| Context | 64K | 1M |
| Input $/M | $0.60 | $1.25 |
| Output $/M | $1.80 | $2.50 |
| Weights | Open | Proprietary |

## Coding

- GLM-4.5V: 38.9 (#152)
- Grok 4.20 Multi-Agent: 42.4 (#91)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1347 | 1458 |

## Agentic & Tool Use

- GLM-4.5V: —
- Grok 4.20 Multi-Agent: —

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Search | — | 1204 |

## Reasoning

- GLM-4.5V: 26.5 (#118)
- Grok 4.20 Multi-Agent: 42.4 (#44)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1335 | 1448 |
| Kagi LLM Benchmark | 59.8% | — |
| NYT Connections (extended) | — | 89.6% |

## Math

- GLM-4.5V: 34.7 (#157)
- Grok 4.20 Multi-Agent: 36.6 (#106)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1353 | 1441 |

## Knowledge

- GLM-4.5V: 36.8 (#155)
- Grok 4.20 Multi-Agent: 39.7 (#116)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1353 | 1445 |

## Multimodal

- GLM-4.5V: 33.6 (#86)
- Grok 4.20 Multi-Agent: 39.8 (#44)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | 1154 | 1259 |

## Multilingual

- GLM-4.5V: 44.9 (#172)
- Grok 4.20 Multi-Agent: 54.6 (#40)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1304 | 1440 |
| LMArena Chinese | 1338 | 1475 |
| LMArena Russian | 1299 | 1457 |
| LMArena Spanish | 1335 | 1447 |
| LMArena French | — | 1467 |
| LMArena German | — | 1456 |
| LMArena Japanese | — | 1405 |
| LMArena Korean | — | 1416 |

## Instruction Following

- GLM-4.5V: 69.4 (#170)
- Grok 4.20 Multi-Agent: 75.0 (#80)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1311 | 1420 |

## Long Context

- GLM-4.5V: 39.6 (#166)
- Grok 4.20 Multi-Agent: 43.7 (#84)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1305 | 1430 |

## Writing & Preference

- GLM-4.5V: 52.7 (#162)
- Grok 4.20 Multi-Agent: 64.1 (#57)

| Benchmark | GLM-4.5V | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1333 | 1450 |
| LMArena Creative Writing | 1295 | 1435 |
| LMArena Multi-Turn | 1333 | 1451 |

## FAQ

### Is GLM-4.5V better than Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 39.2 on the Noometry Index. GLM-4.5V costs 1.7× less per token, which makes it the better buy when Grok 4.20 Multi-Agent's lead doesn't matter for your workload.

### Which is cheaper, GLM-4.5V or Grok 4.20 Multi-Agent?

GLM-4.5V is cheaper. It lists at $0.60 per million input tokens and $1.80 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

### Is GLM-4.5V or Grok 4.20 Multi-Agent better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 42.4 versus 38.9 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.20 Multi-Agent does, with 1M tokens against 64K.

### How many benchmarks do GLM-4.5V and Grok 4.20 Multi-Agent share?

14 benchmarks have published results for both models. GLM-4.5V has 15 scored results on Noometry and Grok 4.20 Multi-Agent has 20.