# Claude Opus 4.6 vs Composer 2.5

> Side-by-side benchmark comparison for Claude Opus 4.6 and Composer 2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-6-vs-composer-2-5
- Last updated: October 2, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Opus 4.6 and Composer 2.5 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.
- Composer 2.5 has the lower published output-token price.
- Claude Opus 4.6 has the larger published context window at 1M.

## Model Snapshot

| Property | Claude Opus 4.6 | Composer 2.5 |
|----------|----------|----------|
| Creator | Anthropic | Cursor |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 200K |
| Independent public score (not head-to-head) | 64.26 | null |
| Benchmarks Covered | 34 | 8 |
| Pricing (input/output) | $5.00 / $25.00 | $0.50 / $2.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 44.5 (Supported · #47/119)
- Composer 2.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Composer 2.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 65.4% | 69.3% | Composer 2.5 |
| BrowseComp | 83.7% | Coming soon | Coming soon |
| OSWorld-Verified | 72.7% | Coming soon | Coming soon |
| Claw-Eval | 70.4% | Coming soon | Coming soon |
| DeepSearchQA | 73.7% | Coming soon | Coming soon |
| CyberGym | 66.6% | Coming soon | Coming soon |
| Gert Labs | 61.85% | Coming soon | Coming soon |
| ResearchClawBench | 19.9% | Coming soon | Coming soon |
| JobBench | 36.7% | Coming soon | Coming soon |
| ApprenticeBench | 5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 58.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 49.5 (Supported · #45/144)
- Composer 2.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Composer 2.5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.8% | Coming soon | Coming soon |
| SWE-bench Verified* | 75.6% | Coming soon | Coming soon |
| LiveCodeBench Pro | 70.7% | Coming soon | Coming soon |
| SWE-bench Pro | 53.4% | Coming soon | Coming soon |
| SWE-Rebench | 65.3% | Coming soon | Coming soon |
| React Native Evals | 84.1% | Coming soon | Coming soon |
| Vibe Code Bench | 57.57% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 26.9% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 69.3% | Coming soon |
| SWE Multilingual | Coming soon | 79.8% | Coming soon |
| cursorBench31 | Coming soon | 63.2% | Coming soon |
| CursorBench 3.2 | Coming soon | 56.1% | Coming soon |
| SWE-bench (Vals) | Coming soon | 79.6% | Coming soon |
| CursorBench 4.0 | Coming soon | 27.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 68.3 (Unranked · 2 rankable rows)
- Composer 2.5 public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 60.6 (#29/49)
- Composer 2.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Composer 2.5 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 77.3% | Coming soon | Coming soon |
| ERQA | 51.6% | Coming soon | Coming soon |
| ScreenSpot Pro | 83.1% | Coming soon | Coming soon |
| MedXpertQA (MM) | 64.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 58.6 (Estimated · #44/171)
- Composer 2.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Composer 2.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.3% | Coming soon | Coming soon |
| GPQA-D | 89.2% | Coming soon | Coming soon |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 82% | Coming soon | Coming soon |
| MMLU-Pro (Arcee) | 89.1% | Coming soon | Coming soon |
| HLE | 53% | Coming soon | Coming soon |
| HLE w/o tools | 40% | Coming soon | Coming soon |
| HealthBench Hard | 14.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.1% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 51 (#79/125)
- Composer 2.5 public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Claude Opus 4.6 public-lane score: 58.5 (Unranked · 3 rankable rows)
- Composer 2.5 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Composer 2.5 | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | 99.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 40.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 22.900% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Opus 4.6 and Composer 2.5?

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 Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [Composer 2.5 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-thinking-vs-composer-2-5)
- [Claude Opus 4.6 vs Composer 2](/compare/claude-opus-4-6-vs-composer-2)
- [Composer 2.5 vs Composer 2](/compare/composer-2-vs-composer-2-5)

## Explore More

- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [Composer 2.5 profile](/models/composer-2-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)