# Gemini 1.5 Flash (May 2024) vs Grok 4.20 Multi-Agent

> Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 32.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-5-flash-vs-grok-4-20-multi-agent
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) 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 20.8.

## Snapshot

| | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 32.9 | 45.5 |
| Rank | 240 | 62 |
| Context | — | 1M |
| Input $/M | — | $1.25 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.5 Flash (May 2024): 33.9 (#233)
- Grok 4.20 Multi-Agent: 42.4 (#91)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Coding | 1262 | 1458 |
| WeirdML | 24.9% | — |
| BigCodeBench Instruct | 43.5% | — |
| BigCodeBench Complete | 55.1% | — |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |

## Agentic & Tool Use

- Gemini 1.5 Flash (May 2024): 26.3 (#97)
- Grok 4.20 Multi-Agent: —

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| BALROG | 14.6% | — |
| LMArena Search | — | 1204 |

## Reasoning

- Gemini 1.5 Flash (May 2024): 20.8 (#212)
- Grok 4.20 Multi-Agent: 42.4 (#44)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Hard Prompts | 1257 | 1448 |
| NYT Connections (extended) | — | 89.6% |
| DTBench | 53.8% | — |
| Epoch Capabilities Index | 129.37 | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |

## Math

- Gemini 1.5 Flash (May 2024): 20.8 (#274)
- Grok 4.20 Multi-Agent: 36.6 (#106)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Math | 1269 | 1441 |
| OTIS Mock AIME 2024-2025 | 16.3% | — |
| Omni-MATH | 30.4% | — |
| MATH Level 5 | 61.9% | — |
| FrontierMath (Feb 2025 set) | 0% | — |
| GSM8K | 82.4% | — |

## Knowledge

- Gemini 1.5 Flash (May 2024): 26.2 (#253)
- Grok 4.20 Multi-Agent: 39.7 (#116)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Expert | 1233 | 1445 |
| GPQA Diamond | 47.3% | — |
| MMLU-Pro | 67.8% | — |
| GPQA (HELM) | 43.7% | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |

## Multimodal

- Gemini 1.5 Flash (May 2024): 35.3 (#76)
- Grok 4.20 Multi-Agent: 39.8 (#44)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Vision | 1141 | 1259 |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |

## Multilingual

- Gemini 1.5 Flash (May 2024): 43.1 (#184)
- Grok 4.20 Multi-Agent: 54.6 (#40)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Non-English | 1278 | 1440 |
| LMArena Chinese | 1295 | 1475 |
| LMArena French | 1257 | 1467 |
| LMArena German | 1262 | 1456 |
| LMArena Japanese | 1252 | 1405 |
| LMArena Korean | 1220 | 1416 |
| LMArena Russian | 1288 | 1457 |
| LMArena Spanish | 1242 | 1447 |

## Instruction Following

- Gemini 1.5 Flash (May 2024): 67.0 (#199)
- Grok 4.20 Multi-Agent: 75.0 (#80)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Instruction Following | 1258 | 1420 |
| IFEval | 83.1% | — |

## Long Context

- Gemini 1.5 Flash (May 2024): 39.0 (#182)
- Grok 4.20 Multi-Agent: 43.7 (#84)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Longer Query | 1284 | 1430 |

## Writing & Preference

- Gemini 1.5 Flash (May 2024): 48.9 (#190)
- Grok 4.20 Multi-Agent: 64.1 (#57)

| Benchmark | Gemini 1.5 Flash (May 2024) | Grok 4.20 Multi-Agent |
|---|---|---|
| LMArena Text | 1287 | 1450 |
| LMArena Creative Writing | 1285 | 1435 |
| LMArena Multi-Turn | 1253 | 1451 |
| WildBench | 79.2% | — |

## FAQ

### Is Gemini 1.5 Flash (May 2024) better than Grok 4.20 Multi-Agent?

Grok 4.20 Multi-Agent is the stronger model overall, scoring 45.5 to 32.9 on the Noometry Index.

### Is Gemini 1.5 Flash (May 2024) or Grok 4.20 Multi-Agent better for coding?

Grok 4.20 Multi-Agent scores higher on coding benchmarks: 42.4 versus 33.9 in the Noometry coding category.

### How many benchmarks do Gemini 1.5 Flash (May 2024) and Grok 4.20 Multi-Agent share?

18 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and Grok 4.20 Multi-Agent has 20.