# Mellum2-12B-A2.5B-Instruct vs MiniCPM5-1B

> Side-by-side benchmark comparison for Mellum2-12B-A2.5B-Instruct and MiniCPM5-1B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mellum2-12b-a2-5b-instruct-vs-minicpm5-1b
- Last updated: September 4, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Mellum2-12B-A2.5B-Instruct if you want the stronger benchmark profile. MiniCPM5-1B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Mellum2-12B-A2.5B-Instruct leads overall 43 to 40.
- The clearest category separation is in knowledge, where the averages are 48.1 for Mellum2-12B-A2.5B-Instruct and 38.7 for MiniCPM5-1B.
- The biggest single benchmark swing is BFCL v4 in Agentic, with scores of 44.2% and 25.1%.
- MiniCPM5-1B also has the larger context window at 131K.

## Model Snapshot

| Property | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B |
|----------|----------|----------|
| Creator | JetBrains | OpenBMB |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 131K |
| Overall Score | null | null |
| Benchmarks Covered | 6 | 14 |
| Pricing (input/output) | N/A | N/A |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: 47.8 (Estimated · #82/151)
- MiniCPM5-1B public-lane score: 45.6 (Estimated · #92/151)

| Benchmark | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B | Winner |
|-----------|-----------|-----------|--------|
| BFCL v4 | 44.2% | 25.1% | Mellum2-12B-A2.5B-Instruct |

### Coding

- Winner: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon
- MiniCPM5-1B public-lane score: Coming soon

| Benchmark | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 37.2% | 33.5% | Mellum2-12B-A2.5B-Instruct |
| LiveCodeBench Pro | Coming soon | 22.7% | Coming soon |

### Reasoning

- Winner: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon
- MiniCPM5-1B public-lane score: Coming soon

| Benchmark | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B | Winner |
|-----------|-----------|-----------|--------|
| BBH | Coming soon | 71.9% | Coming soon |

### Knowledge

- Winner: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: 48.1 (Estimated · #103/181)
- MiniCPM5-1B public-lane score: 38.7 (Estimated · #145/181)

| Benchmark | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | 78.1% | 70.1% | Mellum2-12B-A2.5B-Instruct |
| GPQA | 40.9% | Coming soon | Coming soon |
| GPQA-D | 40.9% | 26.3% | Mellum2-12B-A2.5B-Instruct |
| MMLU-Pro | Coming soon | 48.9% | Coming soon |
| SuperGPQA | Coming soon | 23.1% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon
- MiniCPM5-1B public-lane score: 24.8 (#118/120)

| Benchmark | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 75.8% | 80.4% | MiniCPM5-1B |
| IFBench | Coming soon | 46.7% | Coming soon |

### Mathematics

- Winner: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon
- MiniCPM5-1B public-lane score: 5.4 (Unranked · 4 rankable rows)

| Benchmark | Mellum2-12B-A2.5B-Instruct | MiniCPM5-1B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 40.4% | Coming soon |
| AIME26 | Coming soon | 40.4% | Coming soon |
| HMMT Feb 2026 | Coming soon | 25.8% | Coming soon |
| MATH-500 | Coming soon | 91.6% | Coming soon |

## FAQ

### Which is better overall, Mellum2-12B-A2.5B-Instruct or MiniCPM5-1B?

Mellum2-12B-A2.5B-Instruct is ahead overall on BenchLM right now.

### Where is the biggest gap between Mellum2-12B-A2.5B-Instruct and MiniCPM5-1B?

The widest category gap is in knowledge, where the averages are 48.1 for Mellum2-12B-A2.5B-Instruct and 38.7 for MiniCPM5-1B.

### How many benchmarks does Mellum2-12B-A2.5B-Instruct cover on BenchLM?

Mellum2-12B-A2.5B-Instruct currently has 6 sourced benchmark scores on BenchLM.

### How many benchmarks does MiniCPM5-1B cover on BenchLM?

MiniCPM5-1B currently has 14 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Mellum2-12B-A2.5B-Instruct vs Mellum2-12B-A2.5B-Thinking](/compare/mellum2-12b-a2-5b-instruct-vs-mellum2-12b-a2-5b-thinking)
- [MiniCPM5-1B vs Mellum2-12B-A2.5B-Thinking](/compare/mellum2-12b-a2-5b-thinking-vs-minicpm5-1b)
- [Mellum2-12B-A2.5B-Instruct vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mellum2-12b-a2-5b-instruct)
- [MiniCPM5-1B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-minicpm5-1b)

## Explore More

- [Mellum2-12B-A2.5B-Instruct profile](/models/mellum2-12b-a2-5b-instruct)
- [MiniCPM5-1B profile](/models/minicpm5-1b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)