# Claude Haiku 5.5 vs Claude Opus 4.6

> Side-by-side benchmark comparison for Claude Haiku 5.5 and Claude Opus 4.6 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-5-5-vs-claude-opus-4-6
- Last updated: October 7, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Haiku 5.5 and Claude Opus 4.6 share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Claude Haiku 5.5 has the lower published output-token price.

## Model Snapshot

| Property | Claude Haiku 5.5 | Claude Opus 4.6 |
|----------|----------|----------|
| Creator | Anthropic | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 66.32 | 62.01 |
| Benchmarks Covered | 5 | 34 |
| Pricing (input/output) | $0.10 / $0.50 | $5.00 / $25.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 62.1 (Supported · #18/122)
- Claude Opus 4.6 public-lane score: 44.3 (Supported · #54/122)

| Benchmark | Claude Haiku 5.5 | Claude Opus 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 39.20% | Coming soon | Coming soon |
| HLE w/ tools | 57.4% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 65.4% | Coming soon |
| BrowseComp | Coming soon | 83.7% | Coming soon |
| OSWorld-Verified | Coming soon | 72.7% | Coming soon |
| Claw-Eval | Coming soon | 70.4% | Coming soon |
| DeepSearchQA | Coming soon | 73.7% | Coming soon |
| CyberGym | Coming soon | 66.6% | Coming soon |
| Gert Labs | Coming soon | 61.85% | Coming soon |
| ResearchClawBench | Coming soon | 19.9% | Coming soon |
| JobBench | Coming soon | 36.7% | Coming soon |
| ApprenticeBench | Coming soon | 5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 60.9 (Supported · #20/146)
- Claude Opus 4.6 public-lane score: 48 (Supported · #47/146)

| Benchmark | Claude Haiku 5.5 | Claude Opus 4.6 | Winner |
|-----------|-----------|-----------|--------|
| FrontierCode 1.1 Main | 46.4% | 26.9% | Claude Haiku 5.5 |
| SWE-bench Verified | Coming soon | 80.8% | Coming soon |
| SWE-bench Verified* | Coming soon | 75.6% | Coming soon |
| LiveCodeBench Pro | Coming soon | 70.7% | Coming soon |
| SWE-bench Pro | Coming soon | 53.4% | Coming soon |
| SWE-Rebench | Coming soon | 65.3% | Coming soon |
| React Native Evals | Coming soon | 84.1% | Coming soon |
| Vibe Code Bench | Coming soon | 57.57% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 79.2 (Unranked · 2 rankable rows)
- Claude Opus 4.6 public-lane score: 68.3 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- Claude Opus 4.6 public-lane score: 60.6 (#29/49)

| Benchmark | Claude Haiku 5.5 | Claude Opus 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 46.4% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 77.3% | Coming soon |
| ERQA | Coming soon | 51.6% | Coming soon |
| ScreenSpot Pro | Coming soon | 83.1% | Coming soon |
| MedXpertQA (MM) | Coming soon | 64.8% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- Claude Opus 4.6 public-lane score: 58.4 (Estimated · #45/174)

| Benchmark | Claude Haiku 5.5 | Claude Opus 4.6 | Winner |
|-----------|-----------|-----------|--------|
| HLE w/o tools | 45.9% | 40% | Claude Haiku 5.5 |
| GPQA | Coming soon | 91.3% | Coming soon |
| GPQA-D | Coming soon | 89.2% | Coming soon |
| SuperGPQA | Coming soon | 95% | Coming soon |
| MMLU-Pro | Coming soon | 82% | Coming soon |
| MMLU-Pro (Arcee) | Coming soon | 89.1% | Coming soon |
| HLE | Coming soon | 53% | Coming soon |
| HealthBench Hard | Coming soon | 14.8% | Coming soon |
| MedXpertQA (Text) | Coming soon | 52.1% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- Claude Opus 4.6 public-lane score: 51 (#79/125)

### Mathematics

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- Claude Opus 4.6 public-lane score: 58.5 (Unranked · 3 rankable rows)

| Benchmark | Claude Haiku 5.5 | Claude Opus 4.6 | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | Coming soon | 99.8% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 40.700% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 22.900% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Haiku 5.5 and Claude Opus 4.6?

Not yet. The models share only 2 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

- [Claude Haiku 5.5 vs Claude Opus 4.6 (Adaptive)](/compare/claude-haiku-5-5-vs-claude-opus-4-6-thinking)
- [Claude Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [Claude Haiku 5.5 vs Claude Opus 5.5](/compare/claude-haiku-5-5-vs-claude-opus-5-5)
- [Claude Opus 4.6 vs Claude Opus 5.5](/compare/claude-opus-4-6-vs-claude-opus-5-5)

## Explore More

- [Claude Haiku 5.5 profile](/models/claude-haiku-5-5)
- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)