# Gemini 4 Carbon vs Gemini 4 Hydrogen

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

- Canonical page: https://benchlm.ai/compare/gemini-4-carbon-vs-gemini-4-hydrogen
- Last updated: November 12, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 4 Carbon and Gemini 4 Hydrogen 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.
- Gemini 4 Hydrogen has the lower published output-token price.

## Model Snapshot

| Property | Gemini 4 Carbon | Gemini 4 Hydrogen |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 89.18 | null |
| Benchmarks Covered | 18 | 5 |
| Pricing (input/output) | $2.00 / $10.00 | $1.50 / $7.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 84.9 (Estimated · #2/135)
- Gemini 4 Hydrogen public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Gemini 4 Hydrogen | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.9% | Coming soon | Coming soon |
| OSWorld 2.1 Offline | 81.5% | 77.6% | Gemini 4 Carbon |
| CWE-bench v1 | 71.0% | Coming soon | Coming soon |
| ExploitGym | 53.5% | Coming soon | Coming soon |
| MKA | Coming soon | 53.4% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 51.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 84 (Supported · #2/161)
- Gemini 4 Hydrogen public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Gemini 4 Hydrogen | Winner |
|-----------|-----------|-----------|--------|
| FrontierSWE v2 | 61.2% | Coming soon | Coming soon |
| FrontierCode 2.0 | 40.0% | 38.2% | Gemini 4 Carbon |
| CursorBench 4.0 | 60.4% | Coming soon | Coming soon |
| PostTrainBench | 41.0% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 84.9 (Supported · #2/160)
- Gemini 4 Hydrogen public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Gemini 4 Hydrogen | Winner |
|-----------|-----------|-----------|--------|
| GraphWalks BFS 256K–1M | 96.2% | Coming soon | Coming soon |
| ARC-AGI-1 | 97.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 92.1% | Coming soon | Coming soon |
| ARC-AGI-3 | 63.9% | Coming soon | Coming soon |
| ARC-AGI-3 Provider Adapter | 96.85% | Coming soon | Coming soon |

### Multimodal & Grounded

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

| Benchmark | Gemini 4 Carbon | Gemini 4 Hydrogen | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 72.5% | 66.6% | Gemini 4 Carbon |
| Blueprint-Bench 2 | 58.6% | Coming soon | Coming soon |

### Instruction Following

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

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

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 4 Carbon public-lane score: 93.3 (Unranked · 2 rankable rows)
- Gemini 4 Hydrogen public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Gemini 4 Hydrogen | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 90.526% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 95.122% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemini 4 Carbon and Gemini 4 Hydrogen?

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

- [Gemini 4 Carbon vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemini-4-carbon)
- [Gemini 4 Hydrogen vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemini-4-hydrogen)
- [Gemini 4 Carbon vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-gemini-4-carbon)
- [Gemini 4 Hydrogen vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-gemini-4-hydrogen)

## Explore More

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