# Gemini 3.8 Flash vs Grok 4.7

> Gemini 3.8 Flash is the stronger model overall, scoring 59.5 to 46.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-8-flash-vs-grok-4-7
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 9 categories and Grok 4.7 in 0 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 3.8 Flash leads 74.9 to 38.7.
- The biggest single-benchmark swing is NYT Connections (extended): 97.4% for Gemini 3.8 Flash and 76.8% for Grok 4.7.
- Gemini 3.8 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $2 / $6 for Grok 4.7.
- Gemini 3.8 Flash accepts more context: 1.05M tokens versus 500K.

## Snapshot

| | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| Provider | Google | xAI |
| Noometry Index | 59.5 | 46.6 |
| Rank | 13 | 56 |
| Context | 1.05M | 500K |
| Input $/M | $0.75 | $2 |
| Output $/M | $3.75 | $6 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 3.8 Flash: 56.4 (#17)
- Grok 4.7: 55.0 (#23)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| CursorBench | 39.6% | 46.3% |
| LMArena WebDev | 1581 | 1636 |
| FrontierSWE | 19.6% | 29.5% |
| SciCode | 56.6% | 57.4% |
| LMArena Coding | 1512 | 1423 |
| DeepSWE | 73.8% | — |
| FrontierCode | 41.2% | — |
| ALE-Bench | 1,270 | — |

## Agentic & Tool Use

- Gemini 3.8 Flash: 40.3 (#22)
- Grok 4.7: —

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| APEX-Agents | 64.3% | — |
| GDP.pdf | 23.4% | — |
| Vending-Bench 2 | 5,094 | — |

## Reasoning

- Gemini 3.8 Flash: 64.7 (#13)
- Grok 4.7: 40.1 (#49)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| NYT Connections (extended) | 97.4% | 76.8% |
| CritPt | 18.3% | 17.7% |
| LMArena Hard Prompts | 1506 | 1409 |
| Chess Puzzles | 61% | — |
| Mystery Game Puzzles | 47% | — |
| DTBench | 95.7% | — |
| LMCA | 52.9% | — |
| Surface Evolver Bench | 76.9% | — |
| Epoch Capabilities Index | 157.13 | — |

## Math

- Gemini 3.8 Flash: 65.2 (#22)
- Grok 4.7: 41.1 (#73)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| ProofBench | 48% | 34% |
| LMArena Math | 1528 | 1393 |
| FrontierMath (Tiers 1-3) | 68.4% | — |
| FrontierMath Tier 4 | 22% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |

## Knowledge

- Gemini 3.8 Flash: 74.9 (#2)
- Grok 4.7: 38.7 (#130)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| LMArena Expert | 1529 | 1413 |
| GPQA Diamond | 95.4% | — |
| Humanity's Last Exam | 44.5% | — |
| SimpleQA Verified | 69.7% | — |

## Multimodal

- Gemini 3.8 Flash: 40.9 (#33)
- Grok 4.7: 28.8 (#107)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| Furniture Assembly | 31.7% | 20.8% |
| LMArena Vision | 1312 | — |
| Blueprint-Bench 2 | 38.6% | — |

## Multilingual

- Gemini 3.8 Flash: 57.9 (#5)
- Grok 4.7: 51.2 (#108)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| LMArena Non-English | 1486 | 1392 |
| LMArena Chinese | 1547 | 1476 |
| LMArena Russian | 1507 | 1396 |
| LMArena French | 1502 | — |
| LMArena German | 1470 | — |
| LMArena Japanese | 1505 | — |
| LMArena Korean | 1479 | — |
| LMArena Spanish | 1492 | — |

## Instruction Following

- Gemini 3.8 Flash: 78.2 (#11)
- Grok 4.7: 74.3 (#98)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| LMArena Instruction Following | 1489 | 1406 |

## Long Context

- Gemini 3.8 Flash: 46.2 (#23)
- Grok 4.7: 43.2 (#97)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| LMArena Longer Query | 1506 | 1416 |

## Writing & Preference

- Gemini 3.8 Flash: 72.1 (#16)
- Grok 4.7: 70.1 (#23)

| Benchmark | Gemini 3.8 Flash | Grok 4.7 |
|---|---|---|
| LMArena Text | 1494 | 1397 |
| LMArena Creative Writing | 1485 | 1391 |
| EQ-Bench Creative Writing | 1748 | 2007 |
| LMArena Multi-Turn | 1503 | 1389 |

## FAQ

### Is Gemini 3.8 Flash better than Grok 4.7?

Gemini 3.8 Flash is the stronger model overall, scoring 59.5 to 46.6 on the Noometry Index.

### Which is cheaper, Gemini 3.8 Flash or Grok 4.7?

Gemini 3.8 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; Grok 4.7 lists at $2 and $6.

### Is Gemini 3.8 Flash or Grok 4.7 better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 56.4 versus 55.0 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 500K.

### How many benchmarks do Gemini 3.8 Flash and Grok 4.7 share?

21 benchmarks have published results for both models. Gemini 3.8 Flash has 46 scored results on Noometry and Grok 4.7 has 21.