# Claude Sonnet 4.6 vs K-EXAONE 2.0

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

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

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

## Quick Verdict

Pick Claude Sonnet 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 Sonnet 4.6 leads overall 62.96 to 0.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 49% 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.
- K-EXAONE 2.0 also has the larger context window at 262K.

## Model Snapshot

| Property | Claude Sonnet 4.6 | K-EXAONE 2.0 |
|----------|----------|----------|
| Creator | Anthropic | LG AI Research |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 262K |
| Overall Score | 62.96 | null |
| Benchmarks Covered | 25 | 15 |
| Pricing (input/output) | $3.00 / $15.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 44 (Supported · #93/152)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 59.1% | Coming soon | Coming soon |
| OSWorld-Verified | 72.1% | Coming soon | Coming soon |
| Claw-Eval | 67.8% | 77.7% | K-EXAONE 2.0 |
| CyberGym | 65.2% | Coming soon | Coming soon |
| Gert Labs | 62.92% | Coming soon | Coming soon |
| OSWorld 2.0 | 8.3% | Coming soon | Coming soon |
| JobBench | 36.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 57.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 43.8% | Coming soon |

### Coding

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 52.2 (Supported · #48/151)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 79.6% | 68.2% | Claude Sonnet 4.6 |
| SWE-Rebench | 60.7% | Coming soon | Coming soon |
| React Native Evals | 80.6% | Coming soon | Coming soon |
| Vibe Code Bench | 51.48% | Coming soon | Coming soon |
| cursorBench31 | 48.8% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 24.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 82.1% | Coming soon | Coming soon |
| SWE-bench (Vals) | 77.4% | 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 Sonnet 4.6 public-lane score: 54.1 (#33/48)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 77.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 67.9 (Unranked · 2 rankable rows)
- K-EXAONE 2.0 public-lane score: Coming soon

### Knowledge

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 55.8 (Supported · #51/183)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 89.9% | Coming soon | Coming soon |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 79.2% | 83.5% | K-EXAONE 2.0 |
| HLE | 49% | 18.3% | Claude Sonnet 4.6 |
| GPQA Diamond (Vals) | 85.6% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 87.3% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 82.2% | Coming soon |
| MMMLU | Coming soon | 86.6% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 48.2 (#86/123)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Sonnet 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 Sonnet 4.6 public-lane score: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon

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

### Mathematics

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 49 (Unranked · 2 rankable rows)
- K-EXAONE 2.0 public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.6 | K-EXAONE 2.0 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 32.400% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 8.300% | 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 Sonnet 4.6 or K-EXAONE 2.0?

Claude Sonnet 4.6 is ahead overall on BenchLM right now.

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

Claude Sonnet 4.6 currently has 25 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 Sonnet 4.6 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-sonnet-4-6)
- [K-EXAONE 2.0 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-k-exaone-2-0)
- [Claude Sonnet 4.6 vs GPT-6 Astra](/compare/claude-sonnet-4-6-vs-gpt-6-astra)
- [K-EXAONE 2.0 vs GPT-6 Astra](/compare/gpt-6-astra-vs-k-exaone-2-0)

## Explore More

- [Claude Sonnet 4.6 profile](/models/claude-sonnet-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)