# Ling 3.0 Flash vs Mellum2-12B-A2.5B-Instruct

> Side-by-side benchmark comparison for Ling 3.0 Flash and Mellum2-12B-A2.5B-Instruct across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/ling-3-0-flash-vs-mellum2-12b-a2-5b-instruct
- Last updated: September 4, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Ling 3.0 Flash and Mellum2-12B-A2.5B-Instruct share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Ling 3.0 Flash has the larger published context window at 262K.

## Model Snapshot

| Property | Ling 3.0 Flash | Mellum2-12B-A2.5B-Instruct |
|----------|----------|----------|
| Creator | InclusionAI | JetBrains |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 262K | 128K |
| Independent public score (not head-to-head) | 52.2 | null |
| Benchmarks Covered | 22 | 6 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Ling 3.0 Flash public-lane score: 40 (Supported · #121/151)
- Mellum2-12B-A2.5B-Instruct public-lane score: 47.8 (Estimated · #82/151)

| Benchmark | Ling 3.0 Flash | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| MCP Atlas | 65.5% | Coming soon | Coming soon |
| skillsBench | 44.8% | Coming soon | Coming soon |
| BFCL v4 | 73.0% | 44.2% | Ling 3.0 Flash |
| WideResearch | 73.6% | Coming soon | Coming soon |
| BrowseComp | 72.2% | Coming soon | Coming soon |
| DRACO | 70.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 50.2% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Ling 3.0 Flash public-lane score: 42.8 (Estimated · #126/183)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | Ling 3.0 Flash | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 56.6% | Coming soon | Coming soon |
| SWE Multilingual | 72.4% | Coming soon | Coming soon |
| LiveCodeBench v5 | 82.8% | Coming soon | Coming soon |
| SciCode | 41.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 84.0% | Coming soon | Coming soon |
| SWE-bench (Vals) | 65.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 37.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Ling 3.0 Flash public-lane score: 69.2 (Unranked · 2 rankable rows)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- Ling 3.0 Flash public-lane score: 45.9 (Supported · #112/181)
- Mellum2-12B-A2.5B-Instruct public-lane score: 48.1 (Estimated · #103/181)

| Benchmark | Ling 3.0 Flash | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 85.0% | 40.9% | Ling 3.0 Flash |
| GPQA-D | 85.0% | 40.9% | Ling 3.0 Flash |
| HLE | 22.7% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 84.8% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 82.0% | Coming soon | Coming soon |
| MMLU-Redux | Coming soon | 78.1% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Ling 3.0 Flash public-lane score: 75.6 (#58/120)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | Ling 3.0 Flash | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 74.5% | Coming soon | Coming soon |
| IFEval | Coming soon | 75.8% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Ling 3.0 Flash public-lane score: 73.7 (Unranked · 3 rankable rows)
- Mellum2-12B-A2.5B-Instruct public-lane score: Coming soon

| Benchmark | Ling 3.0 Flash | Mellum2-12B-A2.5B-Instruct | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 93.2% | Coming soon | Coming soon |
| HMMT Feb 2026 | 87.0% | Coming soon | Coming soon |
| IMOAnswerBench | 83.7% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Ling 3.0 Flash and Mellum2-12B-A2.5B-Instruct?

Not yet. The models share only 3 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Ling 3.0 Flash vs Ling 3.0 Flash FP8](/compare/ling-3-0-flash-vs-ling-3-0-flash-fp8)
- [Mellum2-12B-A2.5B-Instruct vs Ling 3.0 Flash FP8](/compare/ling-3-0-flash-fp8-vs-mellum2-12b-a2-5b-instruct)
- [Ling 3.0 Flash vs Ling 3.0 Flash Fin](/compare/ling-3-0-flash-vs-ling-3-0-flash-fin)
- [Mellum2-12B-A2.5B-Instruct vs Ling 3.0 Flash Fin](/compare/ling-3-0-flash-fin-vs-mellum2-12b-a2-5b-instruct)

## Explore More

- [Ling 3.0 Flash profile](/models/ling-3-0-flash)
- [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)