# LFM2.5-24B-A2B vs Mellum2-12B-A2.5B-Instruct

> Side-by-side benchmark comparison for LFM2.5-24B-A2B and Mellum2-12B-A2.5B-Instruct across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/lfm2-5-24b-a2b-vs-mellum2-12b-a2-5b-instruct
- Last updated: October 13, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Mellum2-12B-A2.5B-Instruct leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Mellum2-12B-A2.5B-Instruct has the higher overall point estimate 51 to 37.8. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 74.4% and 40.9%.
- LFM2.5-24B-A2B also has the larger context window at 131K.

## Model Snapshot

| Property | LFM2.5-24B-A2B | Mellum2-12B-A2.5B-Instruct |
|----------|----------|----------|
| Creator | LiquidAI | JetBrains |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 131K | 128K |
| Overall Score | 37.8 | null |
| Benchmarks Covered | 13 | 6 |
| Pricing (input/output) | $0.10 / $1.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LFM2.5-24B-A2B public-lane score: 30.2 (Estimated · #88/124)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | LFM2.5-24B-A2B | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 27.7% | Coming soon | Coming soon |
| BFCL v4 | 65.0% | 44.2% | LFM2.5-24B-A2B |
| τ³-bench results | 8.0% | Coming soon | Coming soon |
| PinchBench | 83.2% | Coming soon | Coming soon |
| WebArena-Verified | 26.8% | Coming soon | Coming soon |

### Coding

- Winner: Not comparable
- LFM2.5-24B-A2B public-lane score: 28.5 (Estimated · #98/149)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | LFM2.5-24B-A2B | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 32.7% | Coming soon | Coming soon |
| SWE-bench Verified | 51% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 37.2% | Coming soon |

### Knowledge

- Winner: Not comparable
- LFM2.5-24B-A2B public-lane score: 40.8 (Estimated · #112/181)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | LFM2.5-24B-A2B | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 74.4% | 40.9% | LFM2.5-24B-A2B |
| GPQA-D | 74.4% | 40.9% | LFM2.5-24B-A2B |
| HLE | 7.4% | Coming soon | Coming soon |
| MMLU-Redux | Coming soon | 78.1% | Coming soon |

### Instruction Following

- Winner: Not comparable
- LFM2.5-24B-A2B public-lane score: 75.6 (#61/128)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | LFM2.5-24B-A2B | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 96.8% | 75.8% | LFM2.5-24B-A2B |
| IFBench | 74.7% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- LFM2.5-24B-A2B public-lane score: Coming soon
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | LFM2.5-24B-A2B | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| MATH-500 | 96.0% | Coming soon | Coming soon |

## FAQ

### Which is better overall, LFM2.5-24B-A2B or Mellum2-12B-A2.5B-Instruct?

Mellum2-12B-A2.5B-Instruct has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### How many benchmarks does LFM2.5-24B-A2B cover on BenchLM?

LFM2.5-24B-A2B currently has 13 sourced benchmark scores on BenchLM.

### 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.

## Related Comparisons

- [LFM2.5-24B-A2B vs Mellum2-12B-A2.5B-Thinking](/compare/lfm2-5-24b-a2b-vs-mellum2-12b-a2-5b-thinking)
- [Mellum2-12B-A2.5B-Instruct vs Mellum2-12B-A2.5B-Thinking](/compare/mellum2-12b-a2-5b-instruct-vs-mellum2-12b-a2-5b-thinking)
- [LFM2.5-24B-A2B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-lfm2-5-24b-a2b)
- [Mellum2-12B-A2.5B-Instruct vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mellum2-12b-a2-5b-instruct)

## Explore More

- [LFM2.5-24B-A2B profile](/models/lfm2-5-24b-a2b)
- [Mellum2-12B-A2.5B-Instruct profile](/models/mellum2-12b-a2-5b-instruct)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)