# Claude Opus 4.6 vs Gemma 4 12B

> Side-by-side benchmark comparison for Claude Opus 4.6 and Gemma 4 12B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-6-vs-gemma-4-12b
- Last updated: September 4, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Claude Opus 4.6 if you want the stronger benchmark profile. Gemma 4 12B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Opus 4.6 leads overall 69.84 to 46.64.
- The clearest category separation is in instruction following, where the averages are 52.3 for Claude Opus 4.6 and 89.8 for Gemma 4 12B.
- The biggest single benchmark swing is HLE w/o tools in Knowledge, with scores of 40% and 5.2%.
- Claude Opus 4.6 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Opus 4.6 | Gemma 4 12B |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 256K |
| Overall Score | 69.84 | 46.64 |
| Benchmarks Covered | 33 | 12 |
| Pricing (input/output) | $5.00 / $25.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 54.6 (Supported · #39/151)
- Gemma 4 12B public-lane score: 47.9 (Estimated · #81/151)

| Benchmark | Claude Opus 4.6 | Gemma 4 12B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 65.4% | Coming soon | Coming soon |
| BrowseComp | 83.7% | Coming soon | Coming soon |
| OSWorld-Verified | 72.7% | Coming soon | Coming soon |
| Claw-Eval | 70.4% | Coming soon | Coming soon |
| DeepSearchQA | 73.7% | Coming soon | Coming soon |
| CyberGym | 66.6% | Coming soon | Coming soon |
| Gert Labs | 61.85% | Coming soon | Coming soon |
| ResearchClawBench | 19.9% | Coming soon | Coming soon |
| JobBench | 36.7% | Coming soon | Coming soon |

### Coding

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 56.5 (Supported · #40/183)
- Gemma 4 12B public-lane score: 46.6 (Estimated · #97/183)

| Benchmark | Claude Opus 4.6 | Gemma 4 12B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.8% | Coming soon | Coming soon |
| SWE-bench Verified* | 75.6% | Coming soon | Coming soon |
| LiveCodeBench Pro | 70.7% | Coming soon | Coming soon |
| SWE-bench Pro | 53.4% | Coming soon | Coming soon |
| SWE-Rebench | 65.3% | Coming soon | Coming soon |
| React Native Evals | 84.1% | Coming soon | Coming soon |
| Vibe Code Bench | 57.57% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 26.9% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 72.0% | Coming soon |

### Multimodal & Grounded

- Winner: Claude Opus 4.6
- Claude Opus 4.6 public-lane score: 59.5 (#28/48)
- Gemma 4 12B public-lane score: 26.1 (#44/48)

| Benchmark | Claude Opus 4.6 | Gemma 4 12B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 77.3% | 69.1% | Claude Opus 4.6 |
| ERQA | 51.6% | Coming soon | Coming soon |
| ScreenSpot Pro | 83.1% | Coming soon | Coming soon |
| MedXpertQA (MM) | 64.8% | 48.7% | Claude Opus 4.6 |
| MathVision | Coming soon | 79.7% | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 65.8 (Unranked · 2 rankable rows)
- Gemma 4 12B public-lane score: 34 (Unranked · 4 rankable rows)

| Benchmark | Claude Opus 4.6 | Gemma 4 12B | Winner |
|-----------|-----------|-----------|--------|
| BBH | Coming soon | 53% | Coming soon |
| MRCRv2 | Coming soon | 43.4% | Coming soon |

### Knowledge

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 61.8 (Estimated · #33/181)
- Gemma 4 12B public-lane score: 40.4 (Supported · #138/181)

| Benchmark | Claude Opus 4.6 | Gemma 4 12B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.3% | 78.8% | Claude Opus 4.6 |
| GPQA-D | 89.2% | 78.8% | Claude Opus 4.6 |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 82% | 77.2% | Claude Opus 4.6 |
| MMLU-Pro (Arcee) | 89.1% | Coming soon | Coming soon |
| HLE | 53% | Coming soon | Coming soon |
| HLE w/o tools | 40% | 5.2% | Claude Opus 4.6 |
| HealthBench Hard | 14.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.1% | Coming soon | Coming soon |
| MMMLU | Coming soon | 83.4% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 52.3 (#76/120)
- Gemma 4 12B public-lane score: 89.8 (#21/120)

### Mathematics

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 58.6 (Unranked · 3 rankable rows)
- Gemma 4 12B public-lane score: 57.6 (Unranked · 1 rankable row)

| Benchmark | Claude Opus 4.6 | Gemma 4 12B | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | 99.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 40.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 22.900% | Coming soon | Coming soon |
| AIME26 | Coming soon | 77.5% | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.6 or Gemma 4 12B?

Claude Opus 4.6 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.6 and Gemma 4 12B?

The widest category gap is in instruction following, where the averages are 52.3 for Claude Opus 4.6 and 89.8 for Gemma 4 12B.

### How many benchmarks does Claude Opus 4.6 cover on BenchLM?

Claude Opus 4.6 currently has 33 sourced benchmark scores on BenchLM.

### How many benchmarks does Gemma 4 12B cover on BenchLM?

Gemma 4 12B currently has 12 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [Gemma 4 12B vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-thinking-vs-gemma-4-12b)
- [Claude Opus 4.6 vs Gemma 4 31B](/compare/claude-opus-4-6-vs-gemma-4-31b)
- [Gemma 4 12B vs Gemma 4 31B](/compare/gemma-4-12b-vs-gemma-4-31b)

## Explore More

- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [Gemma 4 12B profile](/models/gemma-4-12b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)