# Claude Haiku 4.5 vs Gemini 2.5 Pro

> Side-by-side benchmark comparison for Claude Haiku 4.5 and Gemini 2.5 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-4-5-vs-gemini-2-5-pro
- Last updated: September 29, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Gemini 2.5 Pro if you want the stronger benchmark profile. Claude Haiku 4.5 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 2.5 Pro leads overall 50.17 to 42.47.
- The clearest category separation is in knowledge, where the averages are 34.8 for Claude Haiku 4.5 and 44.1 for Gemini 2.5 Pro.
- The biggest single benchmark swing is SWE-bench (Vals) in Coding, with scores of 66.6% and 54.4%.
- Claude Haiku 4.5 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 2.5 Pro also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Haiku 4.5 | Gemini 2.5 Pro |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 200K | 1M |
| Overall Score | 42.47 | 50.17 |
| Benchmarks Covered | 10 | 8 |
| Pricing (input/output) | $1.00 / $5.00 | $1.25 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Haiku 4.5 public-lane score: 22 (Supported · #96/117)
- Gemini 2.5 Pro public-lane score: 25.4 (Estimated · #91/117)

| Benchmark | Claude Haiku 4.5 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| JobBench | 16.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 43.8% | Coming soon | Coming soon |
| Gert Labs | Coming soon | 42.01% | Coming soon |

### Coding

- Winner: Gemini 2.5 Pro
- Claude Haiku 4.5 public-lane score: 19.6 (Supported · #124/143)
- Gemini 2.5 Pro public-lane score: 24.4 (Supported · #108/143)

| Benchmark | Claude Haiku 4.5 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 73.3% | 63.8% | Claude Haiku 4.5 |
| VulcanBench v3 | 76.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 41.2% | Coming soon | Coming soon |
| SWE-bench (Vals) | 66.6% | 54.4% | Claude Haiku 4.5 |
| Vibe Code Bench | Coming soon | 0.40% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 69.7 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 71.4 (Unranked · 1 rankable row)

### Knowledge

- Winner: Directional only
- Claude Haiku 4.5 public-lane score: 34.8 (Estimated · #119/169)
- Gemini 2.5 Pro public-lane score: 44.1 (Supported · #80/169)

| Benchmark | Claude Haiku 4.5 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 72.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 78.7% | Coming soon | Coming soon |
| GPQA | Coming soon | 83% | Coming soon |
| HLE | Coming soon | 18.8% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: Coming soon
- Gemini 2.5 Pro public-lane score: 56.4 (#76/124)

### Mathematics

- Winner: Not comparable
- Claude Haiku 4.5 public-lane score: 28.8 (Unranked · 2 rankable rows)
- Gemini 2.5 Pro public-lane score: 35.1 (Unranked · 2 rankable rows)

| Benchmark | Claude Haiku 4.5 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 5.903% | 14.138% | Gemini 2.5 Pro |
| FrontierMath v2 (Tier 4) | 2.083% | 4.167% | Gemini 2.5 Pro |

## FAQ

### Which is better overall, Claude Haiku 4.5 or Gemini 2.5 Pro?

Gemini 2.5 Pro is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Haiku 4.5 and Gemini 2.5 Pro?

The widest category gap is in knowledge, where the averages are 34.8 for Claude Haiku 4.5 and 44.1 for Gemini 2.5 Pro.

### How many benchmarks does Claude Haiku 4.5 cover on BenchLM?

Claude Haiku 4.5 currently has 10 sourced benchmark scores on BenchLM.

### How many benchmarks does Gemini 2.5 Pro cover on BenchLM?

Gemini 2.5 Pro currently has 8 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Haiku 4.5 vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-vs-claude-haiku-4-5-thinking)
- [Gemini 2.5 Pro vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-thinking-vs-gemini-2-5-pro)
- [Claude Haiku 4.5 vs GPT-6 Astra](/compare/claude-haiku-4-5-vs-gpt-6-astra)
- [Gemini 2.5 Pro vs GPT-6 Astra](/compare/gemini-2-5-pro-vs-gpt-6-astra)

## Explore More

- [Claude Haiku 4.5 profile](/models/claude-haiku-4-5)
- [Gemini 2.5 Pro profile](/models/gemini-2-5-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)