# Gemini 2.5 Flash vs Granite 4.2 30b

> Granite 4.2 30b is the stronger model overall, scoring 41.4 to 39.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-flash-vs-granite-4-2-30b
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. Gemini 2.5 Flash scores higher in 3 categories and Granite 4.2 30b in 4 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Granite 4.2 30b leads 26.7 to 18.2.
- Granite 4.2 30b has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| Provider | Google | IBM |
| Noometry Index | 39.0 | 41.4 |
| Rank | 162 | 126 |
| Context | 1.05M | — |
| Input $/M | $0.30 | — |
| Output $/M | $2.50 | — |
| Weights | Proprietary | Open |

## Coding

- Gemini 2.5 Flash: 35.5 (#210)
- Granite 4.2 30b: 40.4 (#127)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Coding | 1424 | 1394 |
| SWE-bench Verified (bash only) | 28.7% | — |
| Aider Polyglot | 55.1% | — |
| WeirdML | 41.9% | — |
| ALE-Bench | 661.88 | — |

## Agentic & Tool Use

- Gemini 2.5 Flash: 30.6 (#67)
- Granite 4.2 30b: —

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| Terminal-Bench | 17.1% | — |
| Berkeley Function Calling Leaderboard | 56.2% | — |
| TheAgentCompany | 41.1% | — |
| BALROG | 33.5% | — |
| Vending-Bench 2 | 548.84 | — |

## Reasoning

- Gemini 2.5 Flash: 18.2 (#271)
- Granite 4.2 30b: 26.7 (#114)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Hard Prompts | 1422 | 1375 |
| ARC-AGI-2 | 2.5% | — |
| SimpleBench | 41.2% | — |
| Kagi LLM Benchmark | 56.8% | — |
| ARC-AGI-1 | 33.3% | — |
| CritPt | 1.1% | — |
| EnigmaEval | 2.7% | — |
| DTBench | 76.5% | — |
| LMCA | 27.5% | — |
| Epoch Capabilities Index | 143.04 | — |
| ForecastBench | 60.6 | — |

## Math

- Gemini 2.5 Flash: 38.1 (#87)
- Granite 4.2 30b: —

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 73.1% | — |
| Omni-MATH | 38.5% | — |
| LMArena Math | 1415 | — |
| FrontierMath (Feb 2025 set) | 4.8% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 2.5 Flash: 36.1 (#162)
- Granite 4.2 30b: 38.5 (#134)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Expert | 1426 | 1405 |
| Humanity's Last Exam | 12.1% | — |
| MMLU-Pro | 63.9% | — |
| Confabulations | 16.8% | — |
| Vectara Hallucination Rate | 7.8% | — |
| GPQA (HELM) | 39% | — |

## Multimodal

- Gemini 2.5 Flash: 41.2 (#31)
- Granite 4.2 30b: —

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Vision | 1254 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |

## Multilingual

- Gemini 2.5 Flash: 52.5 (#83)
- Granite 4.2 30b: 47.4 (#146)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Non-English | 1410 | 1340 |
| LMArena Chinese | 1450 | 1415 |
| LMArena Russian | 1415 | 1342 |
| LMArena French | 1433 | — |
| LMArena German | 1419 | — |
| LMArena Japanese | 1403 | — |
| LMArena Korean | 1385 | — |
| LMArena Spanish | 1421 | — |

## Instruction Following

- Gemini 2.5 Flash: 75.9 (#50)
- Granite 4.2 30b: 71.3 (#150)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Instruction Following | 1405 | 1346 |
| IFEval | 89.8% | — |

## Long Context

- Gemini 2.5 Flash: 47.5 (#16)
- Granite 4.2 30b: 41.4 (#135)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Longer Query | 1419 | 1359 |
| Fiction.LiveBench | 77.8% | — |

## Writing & Preference

- Gemini 2.5 Flash: 54.0 (#153)
- Granite 4.2 30b: 54.3 (#147)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 30b |
|---|---|---|
| LMArena Text | 1417 | 1363 |
| LMArena Creative Writing | 1400 | 1294 |
| LMArena Multi-Turn | 1408 | 1340 |
| Short-Story Creative Writing | 76.5% | — |
| EQ-Bench Creative Writing | 1137 | — |
| WildBench | 81.7% | — |

## FAQ

### Is Gemini 2.5 Flash better than Granite 4.2 30b?

Granite 4.2 30b is the stronger model overall, scoring 41.4 to 39.0 on the Noometry Index.

### Is Gemini 2.5 Flash or Granite 4.2 30b better for coding?

Granite 4.2 30b scores higher on coding benchmarks: 40.4 versus 35.5 in the Noometry coding category.

### How many benchmarks do Gemini 2.5 Flash and Granite 4.2 30b share?

11 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Granite 4.2 30b has 11.