# GLM-4.6 vs Grok 4.20 Multi-Agent

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 40.9 on the Noometry Index. GLM-4.6 costs 1.6× 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-4-6-vs-grok-4-20-multi-agent
- Last updated: 2026-10-10
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. GLM-4.6 scores higher in 0 categories and Grok 4.20 Multi-Agent in 8 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 42.4 to 23.1.
- GLM-4.6 is cheaper at $0.60 / $2.20 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 205K.
- GLM-4.6 has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| Provider | Z.ai (Zhipu) | xAI |
| Noometry Index | 40.9 | 45.5 |
| Rank | 132 | 62 |
| Context | 205K | 1M |
| Input $/M | $0.60 | $1.25 |
| Output $/M | $2.20 | $2.50 |
| Weights | Open | Proprietary |

## Coding

- GLM-4.6: 39.9 (#137)
- Grok 4.20 Multi-Agent: 42.4 (#91)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1449 | 1458 |
| SWE-bench Verified (bash only) | 55.4% | — |
| LMArena WebDev | 1339 | — |
| SciCode | 38.4% | — |
| ALE-Bench | 340.82 | — |

## Agentic & Tool Use

- GLM-4.6: 32.1 (#60)
- Grok 4.20 Multi-Agent: —

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| Terminal-Bench | 24.5% | — |
| Berkeley Function Calling Leaderboard | 72.4% | — |
| LMArena Search | — | 1204 |

## Reasoning

- GLM-4.6: 23.1 (#168)
- Grok 4.20 Multi-Agent: 42.4 (#44)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1448 |
| Kagi LLM Benchmark | 47.4% | — |
| NYT Connections (extended) | — | 89.6% |
| CritPt | 1.1% | — |

## Math

- GLM-4.6: 36.4 (#115)
- Grok 4.20 Multi-Agent: 36.6 (#106)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1431 | 1441 |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |

## Knowledge

- GLM-4.6: 39.6 (#118)
- Grok 4.20 Multi-Agent: 39.7 (#116)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1432 | 1445 |
| Vectara Hallucination Rate | 9.5% | — |

## Multimodal

- GLM-4.6: —
- Grok 4.20 Multi-Agent: 39.8 (#44)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | — | 1259 |

## Multilingual

- GLM-4.6: 53.6 (#62)
- Grok 4.20 Multi-Agent: 54.6 (#40)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1426 | 1440 |
| LMArena Chinese | 1500 | 1475 |
| LMArena French | 1459 | 1467 |
| LMArena German | 1447 | 1456 |
| LMArena Japanese | 1394 | 1405 |
| LMArena Korean | 1401 | 1416 |
| LMArena Russian | 1418 | 1457 |
| LMArena Spanish | 1436 | 1447 |

## Instruction Following

- GLM-4.6: 74.5 (#93)
- Grok 4.20 Multi-Agent: 75.0 (#80)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1410 | 1420 |

## Long Context

- GLM-4.6: 43.4 (#91)
- Grok 4.20 Multi-Agent: 43.7 (#84)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1423 | 1430 |

## Writing & Preference

- GLM-4.6: 61.3 (#86)
- Grok 4.20 Multi-Agent: 64.1 (#57)

| Benchmark | GLM-4.6 | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1440 | 1450 |
| LMArena Creative Writing | 1411 | 1435 |
| LMArena Multi-Turn | 1427 | 1451 |
| EQ-Bench Creative Writing | 1411 | — |

## FAQ

### Is GLM-4.6 better than Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 40.9 on the Noometry Index. GLM-4.6 costs 1.6× 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-4.6 or Grok 4.20 Multi-Agent?

GLM-4.6 is cheaper. It lists at $0.60 per million input tokens and $2.20 per million output tokens; Grok 4.20 Multi-Agent lists at $1.25 and $2.50.

### Is GLM-4.6 or Grok 4.20 Multi-Agent better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 42.4 versus 39.9 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.20 Multi-Agent does, with 1M tokens against 205K.

### How many benchmarks do GLM-4.6 and Grok 4.20 Multi-Agent share?

17 benchmarks have published results for both models. GLM-4.6 has 29 scored results on Noometry and Grok 4.20 Multi-Agent has 20.