# K-EXAONE 2.0 vs Ornith-1.5-397B

> Side-by-side benchmark comparison for K-EXAONE 2.0 and Ornith-1.5-397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/k-exaone-2-0-vs-ornith-1-5-397b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Ornith-1.5-397B 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

- Ornith-1.5-397B leads overall 65.4 to 0.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 43.8% and 86.1%.

## Model Snapshot

| Property | K-EXAONE 2.0 | Ornith-1.5-397B |
|----------|----------|----------|
| Creator | LG AI Research | Ornith AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 262K |
| Overall Score | null | 65.4 |
| Benchmarks Covered | 15 | 18 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: 60.8 (Estimated · #18/152)

| Benchmark | K-EXAONE 2.0 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 43.8% | 86.1% | Ornith-1.5-397B |
| Claw-Eval | 77.7% | 81.4% | Ornith-1.5-397B |
| HLE w/ tools | Coming soon | 56.1% | Coming soon |
| MCP Atlas | Coming soon | 80% | Coming soon |
| Toolathlon-Verified | Coming soon | 71.2% | Coming soon |
| WideResearch | Coming soon | 80.8% | Coming soon |
| BrowseComp | Coming soon | 86.6% | Coming soon |

### Coding

- Winner: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: 58.8 (Estimated · #26/151)

| Benchmark | K-EXAONE 2.0 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 37.4% | Coming soon | Coming soon |
| SWE-bench Verified | 68.2% | 86% | Ornith-1.5-397B |
| Terminal-Bench 2.1 | 43.8% | 86.1% | Ornith-1.5-397B |
| SWE-bench Pro | Coming soon | 65.1% | Coming soon |
| SWE Multilingual | Coming soon | 79.6% | Coming soon |
| DeepSWE | Coming soon | 56.0% | Coming soon |
| frontierBench | Coming soon | 13.5% | Coming soon |
| NL2Repo | Coming soon | 59.5% | Coming soon |

### Knowledge

- Winner: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: 60.4 (Estimated · #36/183)

| Benchmark | K-EXAONE 2.0 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 83.5% | Coming soon | Coming soon |
| GPQA-D | 82.2% | 92.8% | Ornith-1.5-397B |
| HLE | 18.3% | 44.6% | Ornith-1.5-397B |
| MMMLU | 86.6% | Coming soon | Coming soon |
| GPQA | Coming soon | 92.8% | Coming soon |
| HLE w/o tools | Coming soon | 44.6% | Coming soon |

### Instruction Following

- Winner: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | K-EXAONE 2.0 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 92.4% | Coming soon | Coming soon |
| IFBench | 72.6% | Coming soon | Coming soon |

### Multilingual

- Winner: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | K-EXAONE 2.0 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| PolyMath | 71.3% | Coming soon | Coming soon |

### Mathematics

- Winner: Coming soon
- K-EXAONE 2.0 public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | K-EXAONE 2.0 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 92.3% | Coming soon | Coming soon |
| HMMT Feb 2026 | 78.4% | Coming soon | Coming soon |
| IMOAnswerBench | 78.6% | Coming soon | Coming soon |

## FAQ

### Which is better overall, K-EXAONE 2.0 or Ornith-1.5-397B?

Ornith-1.5-397B is ahead overall on BenchLM right now.

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

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

### How many benchmarks does Ornith-1.5-397B cover on BenchLM?

Ornith-1.5-397B currently has 18 sourced benchmark scores on BenchLM.

## Related Comparisons

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- [K-EXAONE 2.0 vs Ornith-1.5-9B](/compare/k-exaone-2-0-vs-ornith-1-5-9b)
- [Ornith-1.5-397B vs Ornith-1.5-9B](/compare/ornith-1-5-397b-vs-ornith-1-5-9b)

## Explore More

- [K-EXAONE 2.0 profile](/models/k-exaone-2-0)
- [Ornith-1.5-397B profile](/models/ornith-1-5-397b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)