# Grok 4.20 Multi-Agent vs Yi-Lightning

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 37.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-20-multi-agent-vs-yi-lightning
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 8 categories and Yi-Lightning in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.20 Multi-Agent leads 43.9 to 25.9.

## Snapshot

| | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| Provider | xAI | 01.AI |
| Noometry Index | 46.2 | 37.1 |
| Rank | 65 | 209 |
| Context | 1M | — |
| Input $/M | $1.25 | — |
| Output $/M | $2.50 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.20 Multi-Agent: 43.0 (#92)
- Yi-Lightning: 27.4 (#320)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Coding | 1457 | 1312 |
| Aider Polyglot | — | 12.9% |

## Agentic & Tool Use

- Grok 4.20 Multi-Agent: —
- Yi-Lightning: —

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Search | 1204 | — |

## Reasoning

- Grok 4.20 Multi-Agent: 43.9 (#48)
- Yi-Lightning: 25.9 (#139)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Hard Prompts | 1448 | 1302 |
| NYT Connections (extended) | 89.6% | — |

## Math

- Grok 4.20 Multi-Agent: 39.4 (#104)
- Yi-Lightning: 36.2 (#172)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Math | 1442 | 1300 |

## Knowledge

- Grok 4.20 Multi-Agent: 40.4 (#119)
- Yi-Lightning: 35.4 (#185)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Expert | 1445 | 1286 |

## Multimodal

- Grok 4.20 Multi-Agent: 40.5 (#48)
- Yi-Lightning: —

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Vision | 1259 | — |

## Multilingual

- Grok 4.20 Multi-Agent: 54.4 (#43)
- Yi-Lightning: 42.2 (#196)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Non-English | 1440 | 1269 |
| LMArena Chinese | 1475 | 1320 |
| LMArena French | 1466 | 1305 |
| LMArena German | 1456 | 1267 |
| LMArena Japanese | 1405 | 1228 |
| LMArena Korean | 1416 | 1192 |
| LMArena Russian | 1457 | 1255 |
| LMArena Spanish | 1447 | 1315 |

## Instruction Following

- Grok 4.20 Multi-Agent: 74.8 (#84)
- Yi-Lightning: 67.4 (#196)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Instruction Following | 1420 | 1278 |

## Long Context

- Grok 4.20 Multi-Agent: 43.7 (#88)
- Yi-Lightning: 39.4 (#181)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Longer Query | 1431 | 1297 |

## Writing & Preference

- Grok 4.20 Multi-Agent: 64.0 (#59)
- Yi-Lightning: 50.2 (#184)

| Benchmark | Grok 4.20 Multi-Agent | Yi-Lightning |
|---|---|---|
| LMArena Text | 1450 | 1302 |
| LMArena Creative Writing | 1436 | 1280 |
| LMArena Multi-Turn | 1452 | 1311 |

## FAQ

### Is Grok 4.20 Multi-Agent better than Yi-Lightning?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 46.2 to 37.1 on the Noometry Index.

### Is Grok 4.20 Multi-Agent or Yi-Lightning better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 43.0 versus 27.4 in the Noometry coding category.

### How many benchmarks do Grok 4.20 Multi-Agent and Yi-Lightning share?

17 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Yi-Lightning has 18.