# Gemma 4 12B vs Granite 4.2 30B

> Side-by-side benchmark comparison for Gemma 4 12B and Granite 4.2 30B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemma-4-12b-vs-granite-4-2-30b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemma 4 12B and Granite 4.2 30B share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Gemma 4 12B has the larger published context window at 256K.

## Model Snapshot

| Property | Gemma 4 12B | Granite 4.2 30B |
|----------|----------|----------|
| Creator | Google | IBM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 128K |
| Independent public score (not head-to-head) | 42.72 | null |
| Benchmarks Covered | 12 | 14 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 44.9 (Estimated · #87/152)
- Granite 4.2 30B public-lane score: Coming soon

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | Coming soon | 29.2% | Coming soon |
| τ³-bench results | Coming soon | 62.0% | Coming soon |
| BFCL v4 | Coming soon | 61.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 44 (Estimated · #95/151)
- Granite 4.2 30B public-lane score: Coming soon

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 72.0% | 75.8% | Granite 4.2 30B |
| SWE Multilingual | Coming soon | 41.9% | Coming soon |
| SWE-bench Pro | Coming soon | 33.3% | Coming soon |
| SWE-bench Verified | Coming soon | 57% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 29.2% | Coming soon |
| SciCode | Coming soon | 38.8% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 26.1 (#44/48)
- Granite 4.2 30B public-lane score: Coming soon

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 69.1% | Coming soon | Coming soon |
| MathVision | 79.7% | Coming soon | Coming soon |
| MedXpertQA (MM) | 48.7% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 33.7 (Unranked · 4 rankable rows)
- Granite 4.2 30B public-lane score: 54.7 (Unranked · 2 rankable rows)

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| BBH | 53% | Coming soon | Coming soon |
| MRCRv2 | 43.4% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 38.9 (Supported · #141/183)
- Granite 4.2 30B public-lane score: Coming soon

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 78.8% | 66.4% | Gemma 4 12B |
| GPQA-D | 78.8% | Coming soon | Coming soon |
| MMLU-Pro | 77.2% | 77.6% | Granite 4.2 30B |
| HLE w/o tools | 5.2% | Coming soon | Coming soon |
| MMMLU | 83.4% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 90.1 (#21/123)
- Granite 4.2 30B public-lane score: Coming soon

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 77.2% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 57.6 (Unranked · 1 rankable row)
- Granite 4.2 30B public-lane score: Coming soon

| Benchmark | Gemma 4 12B | Granite 4.2 30B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 77.5% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 89.2% | Coming soon |
| HMMT Feb 2025 | Coming soon | 89.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemma 4 12B and Granite 4.2 30B?

Not yet. The models share only 3 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Gemma 4 12B vs Gemma 4 26B A4B](/compare/gemma-4-12b-vs-gemma-4-26b-a4b)
- [Granite 4.2 30B vs Gemma 4 26B A4B](/compare/gemma-4-26b-a4b-vs-granite-4-2-30b)
- [Gemma 4 12B vs Gemma 4 31B](/compare/gemma-4-12b-vs-gemma-4-31b)
- [Granite 4.2 30B vs Gemma 4 31B](/compare/gemma-4-31b-vs-granite-4-2-30b)

## Explore More

- [Gemma 4 12B profile](/models/gemma-4-12b)
- [Granite 4.2 30B profile](/models/granite-4-2-30b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)