# Claude Opus 4.6 vs K-EXAONE 2.0

> Side-by-side benchmark comparison for Claude Opus 4.6 and K-EXAONE 2.0 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-6-vs-k-exaone-2-0
- Last updated: September 10, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Claude Opus 4.6 if you want the stronger benchmark profile. K-EXAONE 2.0 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Opus 4.6 leads overall 69 to 0.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 53% and 18.3%.
- K-EXAONE 2.0 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Claude Opus 4.6 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Opus 4.6 | K-EXAONE 2.0 |
|----------|----------|----------|
| Creator | Anthropic | LG AI Research |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 69 | null |
| Benchmarks Covered | 33 | 15 |
| Pricing (input/output) | $5.00 / $25.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 50.1 (Supported · #56/152)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 65.4% | Coming soon | Coming soon |
| BrowseComp | 83.7% | Coming soon | Coming soon |
| OSWorld-Verified | 72.7% | Coming soon | Coming soon |
| Claw-Eval | 70.4% | 77.7% | K-EXAONE 2.0 |
| 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 |
| Terminal-Bench 2.1 | Coming soon | 43.8% | Coming soon |

### Coding

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 56.6 (Supported · #37/151)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.8% | 68.2% | Claude Opus 4.6 |
| 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 |
| SciCode | Coming soon | 37.4% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 43.8% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 59.5 (#28/48)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | 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 |

### Reasoning

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 67.1 (Unranked · 2 rankable rows)
- K-EXAONE 2.0 public-lane score: Coming soon

### Knowledge

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 61 (Estimated · #34/183)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.3% | Coming soon | Coming soon |
| GPQA-D | 89.2% | 82.2% | Claude Opus 4.6 |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 82% | 83.5% | K-EXAONE 2.0 |
| MMLU-Pro (Arcee) | 89.1% | Coming soon | Coming soon |
| HLE | 53% | 18.3% | Claude Opus 4.6 |
| 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 |
| MMMLU | Coming soon | 86.6% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 52.6 (#78/123)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 92.4% | Coming soon |
| IFBench | Coming soon | 72.6% | Coming soon |

### Multilingual

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| PolyMath | Coming soon | 71.3% | Coming soon |

### Mathematics

- Winner: Coming soon
- Claude Opus 4.6 public-lane score: 58.6 (Unranked · 3 rankable rows)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | K-EXAONE 2.0 | 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 |
| AIME26 | Coming soon | 92.3% | Coming soon |
| HMMT Feb 2026 | Coming soon | 78.4% | Coming soon |
| IMOAnswerBench | Coming soon | 78.6% | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.6 or K-EXAONE 2.0?

Claude Opus 4.6 is ahead overall on BenchLM right now.

### How many benchmarks does Claude Opus 4.6 cover on BenchLM?

Claude Opus 4.6 currently has 33 sourced benchmark scores on BenchLM.

### How many benchmarks does K-EXAONE 2.0 cover on BenchLM?

K-EXAONE 2.0 currently has 15 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [K-EXAONE 2.0 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-thinking-vs-k-exaone-2-0)
- [Claude Opus 4.6 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-opus-4-6)
- [K-EXAONE 2.0 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-k-exaone-2-0)

## Explore More

- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [K-EXAONE 2.0 profile](/models/k-exaone-2-0)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)