# Mellum2.1-12B-A2.5B-Thinking vs MiniCPM5-2B

> Side-by-side benchmark comparison for Mellum2.1-12B-A2.5B-Thinking and MiniCPM5-2B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mellum2-1-12b-a2-5b-thinking-vs-minicpm5-2b
- Last updated: October 8, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick MiniCPM5-2B if you want the stronger benchmark profile. Mellum2.1-12B-A2.5B-Thinking only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- MiniCPM5-2B leads overall 46 to 37.
- The biggest single benchmark swing is SWE-bench Pro in Coding, with scores of 28% and 14.4%.
- MiniCPM5-2B also has the larger context window at 131K.

## Model Snapshot

| Property | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B |
|----------|----------|----------|
| Creator | JetBrains | OpenBMB |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 131K |
| Overall Score | null | null |
| Benchmarks Covered | 7 | 19 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniCPM5-2B public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 17.4% | 8.6% | Mellum2.1-12B-A2.5B-Thinking |
| BFCL v4 | Coming soon | 66.6% | Coming soon |

### Coding

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniCPM5-2B public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 82.0% | 69.1% | Mellum2.1-12B-A2.5B-Thinking |
| SWE-bench Verified | 47% | 46.4% | Mellum2.1-12B-A2.5B-Thinking |
| SWE-bench Pro | 28% | 14.4% | Mellum2.1-12B-A2.5B-Thinking |
| SciCode | Coming soon | 26.3% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 8.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniCPM5-2B public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 43.7% | Coming soon |

### Knowledge

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniCPM5-2B public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | 87.8% | 84.7% | Mellum2.1-12B-A2.5B-Thinking |
| GPQA-D | 64.6% | 70.2% | MiniCPM5-2B |
| MMLU-Pro | Coming soon | 70.8% | Coming soon |
| HLE | Coming soon | 8.9% | Coming soon |
| SuperGPQA | Coming soon | 40.8% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniCPM5-2B public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.6% | 86.7% | Mellum2.1-12B-A2.5B-Thinking |
| IFBench | Coming soon | 66.3% | Coming soon |

### Mathematics

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniCPM5-2B public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniCPM5-2B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 86.5% | Coming soon |
| AIME26 | Coming soon | 86.5% | Coming soon |
| HMMT Feb 2026 | Coming soon | 63.8% | Coming soon |
| MATH-500 | Coming soon | 94.6% | Coming soon |

## FAQ

### Which is better overall, Mellum2.1-12B-A2.5B-Thinking or MiniCPM5-2B?

MiniCPM5-2B is ahead overall on BenchLM right now.

### How many benchmarks does Mellum2.1-12B-A2.5B-Thinking cover on BenchLM?

Mellum2.1-12B-A2.5B-Thinking currently has 7 sourced benchmark scores on BenchLM.

### How many benchmarks does MiniCPM5-2B cover on BenchLM?

MiniCPM5-2B currently has 19 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Mellum2.1-12B-A2.5B-Thinking vs MiniCPM5-1B](/compare/mellum2-1-12b-a2-5b-thinking-vs-minicpm5-1b)
- [MiniCPM5-2B vs MiniCPM5-1B](/compare/minicpm5-1b-vs-minicpm5-2b)
- [Mellum2.1-12B-A2.5B-Thinking vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mellum2-1-12b-a2-5b-thinking)
- [MiniCPM5-2B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-minicpm5-2b)

## Explore More

- [Mellum2.1-12B-A2.5B-Thinking profile](/models/mellum2-1-12b-a2-5b-thinking)
- [MiniCPM5-2B profile](/models/minicpm5-2b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)