# Claude 4 Opus vs Claude Haiku 4.5

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

- Canonical page: https://benchlm.ai/compare/claude-4-opus-vs-claude-haiku-4-5
- Last updated: October 14, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude 4 Opus and Claude Haiku 4.5 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.

## Model Snapshot

| Property | Claude 4 Opus | Claude Haiku 4.5 |
|----------|----------|----------|
| Creator | Anthropic | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 200K | 200K |
| Independent public score (not head-to-head) | null | 41.15 |
| Benchmarks Covered | 5 | 8 |
| Pricing (input/output) | N/A | $1.00 / $5.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude 4 Opus public-lane score: Coming soon
- Claude Haiku 4.5 public-lane score: 21.8 (Supported · #103/124)

| Benchmark | Claude 4 Opus | Claude Haiku 4.5 | Winner |
|-----------|-----------|-----------|--------|
| JobBench | Coming soon | 16.0% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 43.8% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude 4 Opus public-lane score: Coming soon
- Claude Haiku 4.5 public-lane score: 16.9 (Supported · #125/148)

| Benchmark | Claude 4 Opus | Claude Haiku 4.5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 72.5% | 73.3% | Claude Haiku 4.5 |
| VulcanBench v3 | Coming soon | 76.2% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 41.2% | Coming soon |
| SWE-bench (Vals) | Coming soon | 66.6% | Coming soon |

### Multimodal & Grounded

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

| Benchmark | Claude 4 Opus | Claude Haiku 4.5 | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 73.7% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude 4 Opus public-lane score: Coming soon
- Claude Haiku 4.5 public-lane score: 33.4 (Estimated · #138/181)

| Benchmark | Claude 4 Opus | Claude Haiku 4.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 74.9% | Coming soon | Coming soon |
| MMMLU | 87.4% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 72.2% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 78.7% | Coming soon |

### Mathematics

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

| Benchmark | Claude 4 Opus | Claude Haiku 4.5 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 33.9% | Coming soon | Coming soon |

## FAQ

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

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 4 Opus vs Claude 4 Opus Thinking](/compare/claude-4-opus-vs-claude-4-opus-thinking)
- [Claude Haiku 4.5 vs Claude 4 Opus Thinking](/compare/claude-4-opus-thinking-vs-claude-haiku-4-5)
- [Claude 4 Opus vs Claude Haiku 4.5 Thinking](/compare/claude-4-opus-vs-claude-haiku-4-5-thinking)
- [Claude Haiku 4.5 vs Claude Haiku 4.5 Thinking](/compare/claude-haiku-4-5-vs-claude-haiku-4-5-thinking)

## Explore More

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