# Gemini 2.5 Flash vs Granite 4.2 8B

> Granite 4.2 8B is the stronger model overall, scoring 40.0 to 39.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-flash-vs-granite-4-2-8b
- 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 4 categories and Granite 4.2 8B in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Gemini 2.5 Flash leads 52.5 to 44.5.
- Granite 4.2 8B is cheaper at $0.06 / $0.25 per million input/output tokens, against $0.30 / $2.50 for Gemini 2.5 Flash.
- Gemini 2.5 Flash accepts more context: 1.05M tokens versus 131K.
- Granite 4.2 8B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| Provider | Google | IBM |
| Noometry Index | 39.0 | 40.0 |
| Rank | 162 | 143 |
| Context | 1.05M | 131K |
| Input $/M | $0.30 | $0.06 |
| Output $/M | $2.50 | $0.25 |
| Weights | Proprietary | Open |

## Coding

- Gemini 2.5 Flash: 35.5 (#210)
- Granite 4.2 8B: 39.9 (#138)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Coding | 1424 | 1379 |
| 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 8B: —

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| 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 8B: 25.5 (#130)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Hard Prompts | 1422 | 1327 |
| 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 8B: —

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| 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 8B: 37.7 (#144)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Expert | 1426 | 1380 |
| 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 8B: —

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Vision | 1254 | — |
| GeoBench | 76% | — |
| VPCT | 46.2% | — |
| SpatialViz-Bench | 36.9% | — |

## Multilingual

- Gemini 2.5 Flash: 52.5 (#83)
- Granite 4.2 8B: 44.5 (#173)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Non-English | 1410 | 1299 |
| LMArena Chinese | 1450 | 1361 |
| LMArena Russian | 1415 | 1283 |
| 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 8B: 68.7 (#183)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Instruction Following | 1405 | 1298 |
| IFEval | 89.8% | — |

## Long Context

- Gemini 2.5 Flash: 47.5 (#16)
- Granite 4.2 8B: 40.2 (#154)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Longer Query | 1419 | 1323 |
| Fiction.LiveBench | 77.8% | — |

## Writing & Preference

- Gemini 2.5 Flash: 54.0 (#153)
- Granite 4.2 8B: 49.8 (#183)

| Benchmark | Gemini 2.5 Flash | Granite 4.2 8B |
|---|---|---|
| LMArena Text | 1417 | 1319 |
| LMArena Creative Writing | 1400 | 1238 |
| LMArena Multi-Turn | 1408 | 1299 |
| 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 8B?

Granite 4.2 8B is the stronger model overall, scoring 40.0 to 39.0 on the Noometry Index.

### Which is cheaper, Gemini 2.5 Flash or Granite 4.2 8B?

Granite 4.2 8B is cheaper. It lists at $0.06 per million input tokens and $0.25 per million output tokens; Gemini 2.5 Flash lists at $0.30 and $2.50.

### Is Gemini 2.5 Flash or Granite 4.2 8B better for coding?

Granite 4.2 8B scores higher on coding benchmarks: 39.9 versus 35.5 in the Noometry coding category.

### Which has the bigger context window?

Gemini 2.5 Flash does, with 1.05M tokens against 131K.

### How many benchmarks do Gemini 2.5 Flash and Granite 4.2 8B share?

11 benchmarks have published results for both models. Gemini 2.5 Flash has 54 scored results on Noometry and Granite 4.2 8B has 11.