# LLaDA2.2-flash vs Mellum2.1-12B-A2.5B-Thinking

> Side-by-side benchmark comparison for LLaDA2.2-flash and Mellum2.1-12B-A2.5B-Thinking across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/llada2-2-flash-vs-mellum2-1-12b-a2-5b-thinking
- Last updated: October 8, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: LLaDA2.2-flash and Mellum2.1-12B-A2.5B-Thinking share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.

## Model Snapshot

| Property | LLaDA2.2-flash | Mellum2.1-12B-A2.5B-Thinking |
|----------|----------|----------|
| Creator | InclusionAI | JetBrains |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 128K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 8 | 7 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- LLaDA2.2-flash public-lane score: Coming soon
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LLaDA2.2-flash | Mellum2.1-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| τ²-bench results | 80.3% | Coming soon | Coming soon |
| Claw-Eval | 64.2% | Coming soon | Coming soon |
| PinchBench | 81.7% | Coming soon | Coming soon |
| MCP Atlas | 46.2% | Coming soon | Coming soon |
| BFCL v4 | 60.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 17.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- LLaDA2.2-flash public-lane score: Coming soon
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LLaDA2.2-flash | Mellum2.1-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 49.3% | 47% | LLaDA2.2-flash |
| SWE-bench Pro | 30.1% | 28% | LLaDA2.2-flash |
| SWE Multilingual | 25% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 82.0% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- LLaDA2.2-flash public-lane score: Coming soon
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LLaDA2.2-flash | Mellum2.1-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | Coming soon | 87.8% | Coming soon |
| GPQA-D | Coming soon | 64.6% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- LLaDA2.2-flash public-lane score: Coming soon
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon

| Benchmark | LLaDA2.2-flash | Mellum2.1-12B-A2.5B-Thinking | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 90.6% | Coming soon |

## FAQ

### Is there enough evidence to pick between LLaDA2.2-flash and Mellum2.1-12B-A2.5B-Thinking?

Not yet. The models share only 2 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

- [LLaDA2.2-flash vs LLaDA2.2-mini](/compare/llada2-2-flash-vs-llada2-2-mini)
- [Mellum2.1-12B-A2.5B-Thinking vs LLaDA2.2-mini](/compare/llada2-2-mini-vs-mellum2-1-12b-a2-5b-thinking)
- [LLaDA2.2-flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-llada2-2-flash)
- [Mellum2.1-12B-A2.5B-Thinking vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mellum2-1-12b-a2-5b-thinking)

## Explore More

- [LLaDA2.2-flash profile](/models/llada2-2-flash)
- [Mellum2.1-12B-A2.5B-Thinking profile](/models/mellum2-1-12b-a2-5b-thinking)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)