# Claude Haiku 4.5 vs Gemini 4 Carbon

> Side-by-side benchmark comparison for Claude Haiku 4.5 and Gemini 4 Carbon across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-4-5-vs-gemini-4-carbon
- Last updated: October 29, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Haiku 4.5 and Gemini 4 Carbon share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Claude Haiku 4.5 has the lower published output-token price.
- Claude Haiku 4.5 has the larger published context window at 200K.

## Model Snapshot

| Property | Claude Haiku 4.5 | Gemini 4 Carbon |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | null |
| Independent public score (not head-to-head) | 39.95 | 88.37 |
| Benchmarks Covered | 11 | 9 |
| Pricing (input/output) | $1.00 / $5.00 | $2.00 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 22.3 (Supported · #120/134)
- Gemini 4 Carbon public-lane score: Coming soon

| Benchmark | Claude Haiku 4.5 | Gemini 4 Carbon | Winner |
|-----------|-----------|-----------|--------|
| JobBench | 16.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 43.8% | Coming soon | Coming soon |
| MazeBench | 0% | Coming soon | Coming soon |
| OSWorld 2.1 Offline | 15.7% | 81.5% | Gemini 4 Carbon |
| AutomationBench | Coming soon | 53.9% | Coming soon |
| CWE-bench v1 | Coming soon | 71.0% | Coming soon |
| ExploitGym | Coming soon | 53.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 17 (Supported · #142/156)
- Gemini 4 Carbon public-lane score: 81.1 (Supported · #3/156)

| Benchmark | Claude Haiku 4.5 | Gemini 4 Carbon | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 73.3% | Coming soon | Coming soon |
| VulcanBench v3 | 76.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 41.2% | Coming soon | Coming soon |
| SWE-bench (Vals) | 66.6% | Coming soon | Coming soon |
| FrontierSWE v2 | Coming soon | 61.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: Coming soon
- Gemini 4 Carbon public-lane score: 79.5 (Unranked · 2 rankable rows)

| Benchmark | Claude Haiku 4.5 | Gemini 4 Carbon | Winner |
|-----------|-----------|-----------|--------|
| GraphWalks BFS 256K–1M | Coming soon | 96.2% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: Coming soon
- Gemini 4 Carbon public-lane score: Coming soon

| Benchmark | Claude Haiku 4.5 | Gemini 4 Carbon | Winner |
|-----------|-----------|-----------|--------|
| ParseBench | 45.17% | Coming soon | Coming soon |
| Chartography (no tools) | Coming soon | 72.5% | Coming soon |
| Blueprint-Bench 2 | Coming soon | 58.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: 31.5 (Estimated · #144/178)
- Gemini 4 Carbon public-lane score: 88.2 (Supported · #2/178)

| Benchmark | Claude Haiku 4.5 | Gemini 4 Carbon | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 72.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 78.7% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Haiku 4.5 public-lane score: Coming soon
- Gemini 4 Carbon public-lane score: Coming soon

| Benchmark | Claude Haiku 4.5 | Gemini 4 Carbon | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 0.0% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Haiku 4.5 and Gemini 4 Carbon?

Not yet. The models share only 1 sourced benchmark row, 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

- [Claude Haiku 4.5 vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-vs-claude-haiku-4-5-thinking)
- [Gemini 4 Carbon vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-thinking-vs-gemini-4-carbon)
- [Claude Haiku 4.5 vs Gemini 4 Argon](/compare/claude-haiku-4-5-vs-gemini-4-argon)
- [Gemini 4 Carbon vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemini-4-carbon)

## Explore More

- [Claude Haiku 4.5 profile](/models/claude-haiku-4-5)
- [Gemini 4 Carbon profile](/models/gemini-4-carbon)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)