Model comparison
Mellum2-12B-A2.5B-Instruct vs Soofi S 30B-A3B
Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use BenchLM's provisional ranking lane.
Evidence parity. Mellum2-12B-A2.5B-Instruct and Soofi S 30B-A3B share 2 comparable benchmark results. 1 of 8 categories are comparable. 4 results are unique to Mellum2-12B-A2.5B-Instruct; 6 to Soofi S 30B-A3B.
Updated July 15, 2026- Shared results
- 2
- Mellum2-12B-A2.5B-Instruct only
- 4
- Soofi S 30B-A3B only
- 6
- Comparable categories
- 1 / 8
Treat this as a split decision. Mellum2-12B-A2.5B-Instruct makes more sense if its workflow fits your team better; Soofi S 30B-A3B is the better fit if knowledge is the priority or you need the larger 1M context window.
Confidence note. This is a partial-evidence comparison with 2 shared benchmark results across 1 evidence category; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Mellum2-12B-A2.5B-Instruct and Soofi S 30B-A3B finish on the same provisional overall score, so this is less about a single winner and more about where the edge shows up. The provisional headline says tie; the benchmark table is where the real choice happens.
Soofi S 30B-A3B gives you the larger context window at 1M, compared with 128K for Mellum2-12B-A2.5B-Instruct.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Mellum2-12B-A2.5B-Instruct | Δ | Soofi S 30B-A3B |
|---|---|---|---|
| Knowledge | Mellum2-12B-A2.5B-Instruct40.9 | Margin→ 9.0 | Soofi S 30B-A3B49.9 |
| Inst. Following | Mellum2-12B-A2.5B-Instruct75.8 | MarginNo overlap | Soofi S 30B-A3BNot measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
GPQA
KnowledgeA 40.9%B 43.4%Winner: Soofi S 30B-A3BΔ 2.5GPQA: Mellum2-12B-A2.5B-Instruct scored 40.9%; Soofi S 30B-A3B scored 43.4%. Soofi S 30B-A3B wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Mellum2-12B-A2.5B-Instruct | Soofi S 30B-A3B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Mellum2-12B-A2.5B-InstructNot available | Soofi S 30B-A3B$0 input / $0 output | A complete price comparison is not available. |
| Generation speedtokens per second | Mellum2-12B-A2.5B-InstructNot available | Soofi S 30B-A3BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Mellum2-12B-A2.5B-InstructNot available | Soofi S 30B-A3BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Mellum2-12B-A2.5B-Instruct128K | Soofi S 30B-A3B1M | Soofi S 30B-A3B lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Mellum2-12B-A2.5B-Instruct | Soofi S 30B-A3B | Result |
|---|---|---|---|
| BFCL v4Source | 44.2% | — | Not comparable |
Coding2 benchmarks
Reasoning2 benchmarks
KnowledgeSoofi S 30B-A3B wins5 benchmarks
Math1 benchmarks
| Benchmark | Mellum2-12B-A2.5B-Instruct | Soofi S 30B-A3B | Result |
|---|---|---|---|
| GSM8KSource | — | 86.1% | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Mellum2-12B-A2.5B-Instruct | Soofi S 30B-A3B | Result |
|---|---|---|---|
| IFEvalSource | 75.8% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, Mellum2-12B-A2.5B-Instruct or Soofi S 30B-A3B?
Mellum2-12B-A2.5B-Instruct and Soofi S 30B-A3B are tied on the provisional overall score, so the right pick depends on which category matters most for your use case.
Which is better for knowledge tasks, Mellum2-12B-A2.5B-Instruct or Soofi S 30B-A3B?
Soofi S 30B-A3B has the edge for knowledge tasks in this comparison, averaging 49.9 versus 40.9. Inside this category, GPQA is the benchmark that creates the most daylight between them.
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