# Holo3.1-4B vs Mellum2-12B-A2.5B-Thinking

> Side-by-side benchmark comparison for Holo3.1-4B and Mellum2-12B-A2.5B-Thinking across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/holo3-1-4b-vs-mellum2-12b-a2-5b-thinking
- Last updated: September 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Holo3.1-4B and Mellum2-12B-A2.5B-Thinking.

## Summary

- Holo3.1-4B and Mellum2-12B-A2.5B-Thinking do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Holo3.1-4B | Mellum2-12B-A2.5B-Thinking |
|----------|----------|----------|
| Creator | H Company | JetBrains |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 262K | 128K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 1 | 6 |
| Pricing (input/output) | $0.00 / $0.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Holo3.1-4B public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: 48.3 (Estimated · #76/151)

| Benchmark | Holo3.1-4B | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| AndroidWorld | 71.0% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 45.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Holo3.1-4B public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | Holo3.1-4B | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | Coming soon | 69.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Holo3.1-4B public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: 48.8 (Estimated · #96/181)

| Benchmark | Holo3.1-4B | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | Coming soon | 86.2% | Coming soon |
| GPQA | Coming soon | 57.6% | Coming soon |
| GPQA-D | Coming soon | 57.6% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Holo3.1-4B public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | Holo3.1-4B | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 76.5% | Coming soon |

## FAQ

### Can I compare Holo3.1-4B and Mellum2-12B-A2.5B-Thinking on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Holo3.1-4B vs Holo3.1-35B-A3B](/compare/holo3-1-35b-a3b-vs-holo3-1-4b)
- [Mellum2-12B-A2.5B-Thinking vs Holo3.1-35B-A3B](/compare/holo3-1-35b-a3b-vs-mellum2-12b-a2-5b-thinking)
- [Holo3.1-4B vs Holo3.1-9B](/compare/holo3-1-4b-vs-holo3-1-9b)
- [Mellum2-12B-A2.5B-Thinking vs Holo3.1-9B](/compare/holo3-1-9b-vs-mellum2-12b-a2-5b-thinking)

## Explore More

- [Holo3.1-4B profile](/models/holo3-1-4b)
- [Mellum2-12B-A2.5B-Thinking profile](/models/mellum2-12b-a2-5b-thinking)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)