Model comparison
Claude Sonnet 4.5 Thinking vs K-Exaone
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Claude Sonnet 4.5 Thinking unranked (Not scored); K-Exaone #126 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Claude Sonnet 4.5 Thinking and K-Exaone share 0 comparable benchmark results. 0 of 8 categories are comparable. 2 results are unique to Claude Sonnet 4.5 Thinking; 11 to K-Exaone.
Updated July 23, 2026- Shared results
- 0
- Claude Sonnet 4.5 Thinking only
- 2
- K-Exaone only
- 11
- Comparable categories
- 0 / 8
Benchmark data for Claude Sonnet 4.5 Thinking and K-Exaone is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
K-Exaone has the larger context window at 256K, compared with 200K for Claude Sonnet 4.5 Thinking.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Claude Sonnet 4.5 Thinking | K-Exaone | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Claude Sonnet 4.5 ThinkingNot available | K-ExaoneNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Claude Sonnet 4.5 ThinkingNot available | K-ExaoneNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Claude Sonnet 4.5 ThinkingNot available | K-ExaoneNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Claude Sonnet 4.5 Thinking200K | K-Exaone256K | K-Exaone lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Claude Sonnet 4.5 Thinking | K-Exaone | Result |
|---|---|---|---|
| τ²-bench resultsSource | — | 74.3% | Not comparable |
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Claude Sonnet 4.5 Thinking | K-Exaone | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | — | 24.7% | Not comparable |
| AA-GPQA DiamondSource | — | 78.3% | Not comparable |
| AA-HLESource | — | 13.1% | Not comparable |
| AA-Omniscience IndexSource | — | -57.9% | Not comparable |
| AA-Omniscience AccuracySource | — | 16.5% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 89.1% | Not comparable |
Multimodal1 benchmarks
| Benchmark | Claude Sonnet 4.5 Thinking | K-Exaone | Result |
|---|---|---|---|
| Design Arena WebsiteSource | 1219 | — | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Claude Sonnet 4.5 Thinking | K-Exaone | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 64.7% | Not comparable |
Frequently Asked Questions (2)
Can I compare Claude Sonnet 4.5 Thinking and K-Exaone on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
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