# LFM2.5-230M vs Mellum2-12B-A2.5B-Thinking

> Side-by-side benchmark comparison for LFM2.5-230M and Mellum2-12B-A2.5B-Thinking across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/lfm2-5-230m-vs-mellum2-12b-a2-5b-thinking
- Last updated: September 27, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Mellum2-12B-A2.5B-Thinking if you want the stronger benchmark profile. LFM2.5-230M 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-Thinking leads overall 52 to 34.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 25.4% and 57.6%.
- Mellum2-12B-A2.5B-Thinking also has the larger context window at 128K.

## Model Snapshot

| Property | LFM2.5-230M | Mellum2-12B-A2.5B-Thinking |
|----------|----------|----------|
| Creator | LiquidAI | JetBrains |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 32K | 128K |
| Overall Score | null | null |
| Benchmarks Covered | 6 | 6 |
| Pricing (input/output) | $0.00 / $0.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LFM2.5-230M public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LFM2.5-230M | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| BFCL v4 | 21.0% | 45.6% | Mellum2-12B-A2.5B-Thinking |

### Coding

- Winner: Not comparable
- LFM2.5-230M public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LFM2.5-230M | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | Coming soon | 69.9% | Coming soon |

### Knowledge

- Winner: Not comparable
- LFM2.5-230M public-lane score: Coming soon
- Mellum2-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LFM2.5-230M | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 25.4% | 57.6% | Mellum2-12B-A2.5B-Thinking |
| GPQA-D | 25.4% | 57.6% | Mellum2-12B-A2.5B-Thinking |
| MMLU-Pro | 20.3% | Coming soon | Coming soon |
| MMLU-Redux | Coming soon | 86.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- LFM2.5-230M public-lane score: 10.4 (#123/124)
- Mellum2-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LFM2.5-230M | Mellum2-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 71.7% | 76.5% | Mellum2-12B-A2.5B-Thinking |
| IFBench | 38.4% | Coming soon | Coming soon |

## FAQ

### Which is better overall, LFM2.5-230M or Mellum2-12B-A2.5B-Thinking?

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

### How many benchmarks does LFM2.5-230M cover on BenchLM?

LFM2.5-230M currently has 6 sourced benchmark scores on BenchLM.

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

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

## Related Comparisons

- [LFM2.5-230M vs Mellum2-12B-A2.5B-Instruct](/compare/lfm2-5-230m-vs-mellum2-12b-a2-5b-instruct)
- [Mellum2-12B-A2.5B-Thinking vs Mellum2-12B-A2.5B-Instruct](/compare/mellum2-12b-a2-5b-instruct-vs-mellum2-12b-a2-5b-thinking)
- [LFM2.5-230M vs GPT-6 Astra](/compare/gpt-6-astra-vs-lfm2-5-230m)
- [Mellum2-12B-A2.5B-Thinking vs GPT-6 Astra](/compare/gpt-6-astra-vs-mellum2-12b-a2-5b-thinking)

## Explore More

- [LFM2.5-230M profile](/models/lfm2-5-230m)
- [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)