# Gemini 4 Carbon vs Gemma 4 E4B

> Side-by-side benchmark comparison for Gemini 4 Carbon and Gemma 4 E4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-4-carbon-vs-gemma-4-e4b
- Last updated: October 28, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Gemini 4 Carbon and Gemma 4 E4B.

## Summary

- Gemini 4 Carbon and Gemma 4 E4B do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Gemini 4 Carbon | Gemma 4 E4B |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | null | 128K |
| Independent public score (not head-to-head) | 88.42 | 26.6 |
| Benchmarks Covered | 9 | 7 |
| Pricing (input/output) | $2.00 / $10.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: Coming soon
- Gemma 4 E4B public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Gemma 4 E4B | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.9% | Coming soon | Coming soon |
| OSWorld 2.1 Offline | 81.5% | Coming soon | Coming soon |
| CWE-bench v1 | 71.0% | Coming soon | Coming soon |
| ExploitGym | 53.5% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 82.2 (Supported · #3/156)
- Gemma 4 E4B public-lane score: 16.1 (Estimated · #143/156)

| Benchmark | Gemini 4 Carbon | Gemma 4 E4B | Winner |
|-----------|-----------|-----------|--------|
| FrontierSWE v2 | 61.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 52.0% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 79.5 (Unranked · 2 rankable rows)
- Gemma 4 E4B public-lane score: 31.5 (Unranked · 3 rankable rows)

| Benchmark | Gemini 4 Carbon | Gemma 4 E4B | Winner |
|-----------|-----------|-----------|--------|
| GraphWalks BFS 256K–1M | 96.2% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 25.4% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: Coming soon
- Gemma 4 E4B public-lane score: 23 (#56/58)

| Benchmark | Gemini 4 Carbon | Gemma 4 E4B | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 72.5% | Coming soon | Coming soon |
| Blueprint-Bench 2 | 58.6% | Coming soon | Coming soon |
| ExtractBench (LlamaIndex) | Coming soon | 69.64% | Coming soon |
| ParseBench | Coming soon | 40.50% | Coming soon |
| MMMU-Pro | Coming soon | 52.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 88.2 (Supported · #2/178)
- Gemma 4 E4B public-lane score: 28.4 (Estimated · #157/178)

| Benchmark | Gemini 4 Carbon | Gemma 4 E4B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 58.6% | Coming soon |
| MMLU-Pro | Coming soon | 69.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: Coming soon
- Gemma 4 E4B public-lane score: 51.9 (#95/157)

| Benchmark | Gemini 4 Carbon | Gemma 4 E4B | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 0.0% | Coming soon | Coming soon |

## FAQ

### Can I compare Gemini 4 Carbon and Gemma 4 E4B on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Gemini 4 Carbon vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemini-4-carbon)
- [Gemma 4 E4B vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemma-4-e4b)
- [Gemini 4 Carbon vs Gemma 4 31B](/compare/gemini-4-carbon-vs-gemma-4-31b)
- [Gemma 4 E4B vs Gemma 4 31B](/compare/gemma-4-31b-vs-gemma-4-e4b)

## Explore More

- [Gemini 4 Carbon profile](/models/gemini-4-carbon)
- [Gemma 4 E4B profile](/models/gemma-4-e4b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)