Model comparison
Exaone 4.0 32B vs Mellum2-12B-A2.5B-Thinking
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: Exaone 4.0 32B #170 (Estimated); Mellum2-12B-A2.5B-Thinking unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Exaone 4.0 32B and Mellum2-12B-A2.5B-Thinking share 0 comparable benchmark results. 1 of 8 categories are comparable. 13 results are unique to Exaone 4.0 32B; 5 to Mellum2-12B-A2.5B-Thinking.
Updated July 23, 2026- Shared results
- 0
- Exaone 4.0 32B only
- 13
- Mellum2-12B-A2.5B-Thinking only
- 5
- Comparable categories
- 1 / 8
Treat this as a split decision. Exaone 4.0 32B makes more sense if knowledge is the priority; Mellum2-12B-A2.5B-Thinking is the better fit if its strengths line up with your actual workload.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Exaone 4.0 32B and Mellum2-12B-A2.5B-Thinking finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Exaone 4.0 32B | Mellum2-12B-A2.5B-Thinking | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Exaone 4.0 32BNot available | Mellum2-12B-A2.5B-ThinkingNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Exaone 4.0 32BNot available | Mellum2-12B-A2.5B-ThinkingNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Exaone 4.0 32BNot available | Mellum2-12B-A2.5B-ThinkingNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Exaone 4.0 32B128K | Mellum2-12B-A2.5B-Thinking128K | Listed context windows are equal. |
Benchmark Deep Dive
Agentic2 benchmarks
Coding1 benchmarks
| Benchmark | Exaone 4.0 32B | Mellum2-12B-A2.5B-Thinking | Result |
|---|---|---|---|
| AA-SciCodeSource | 25.2% | — | Not comparable |
Reasoning2 benchmarks
KnowledgeExaone 4.0 32B wins10 benchmarks
| Benchmark | Exaone 4.0 32B | Mellum2-12B-A2.5B-Thinking | Result |
|---|---|---|---|
| MMLU-ProSource | 81.8% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 6.0% | — | Not comparable |
| AA-GPQA DiamondSource | 62.8% | — | Not comparable |
| AA-HLESource | 4.9% | — | Not comparable |
| AA-Omniscience IndexSource | -62.3% | — | Not comparable |
| AA-Omniscience AccuracySource | 10.4% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 81.0% | — | Not comparable |
| MMLU-ReduxSource | — | 86.2% | Not comparable |
| GPQASource | — | 57.6% | Not comparable |
| GPQA-DSource | — | 57.6% | Not comparable |
Math1 benchmarks
| Benchmark | Exaone 4.0 32B | Mellum2-12B-A2.5B-Thinking | Result |
|---|---|---|---|
| AIME 2025Source | 85.3% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, Exaone 4.0 32B or Mellum2-12B-A2.5B-Thinking?
Exaone 4.0 32B and Mellum2-12B-A2.5B-Thinking are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.
Which is better for knowledge tasks, Exaone 4.0 32B or Mellum2-12B-A2.5B-Thinking?
Exaone 4.0 32B has the edge for knowledge tasks in this comparison, averaging 81.8 versus 57.6. Mellum2-12B-A2.5B-Thinking stays close enough that the answer can still flip depending on your workload.
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