# Mellum2.1-12B-A2.5B-Thinking vs MiniMax M3

> Side-by-side benchmark comparison for Mellum2.1-12B-A2.5B-Thinking and MiniMax M3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mellum2-1-12b-a2-5b-thinking-vs-minimax-m3
- Last updated: October 8, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Mellum2.1-12B-A2.5B-Thinking and MiniMax M3 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.
- Mellum2.1-12B-A2.5B-Thinking has the lower published output-token price.
- MiniMax M3 has the larger published context window at 1M.

## Model Snapshot

| Property | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 |
|----------|----------|----------|
| Creator | JetBrains | MiniMax |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 128K | 1M |
| Independent public score (not head-to-head) | null | 54.34 |
| Benchmarks Covered | 7 | 27 |
| Pricing (input/output) | $0.00 / $0.00 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: 40 (Supported · #61/122)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 17.4% | 66.0% | MiniMax M3 |
| BrowseComp | Coming soon | 83.5% | Coming soon |
| OSWorld-Verified | Coming soon | 70.1% | Coming soon |
| MCP Atlas | Coming soon | 74.2% | Coming soon |
| Claw-Eval | Coming soon | 74.5% | Coming soon |
| BankerToolBench | Coming soon | 76.1% | Coming soon |
| ResearchClawBench | Coming soon | 19.8% | Coming soon |
| OSWorld 2.0 | Coming soon | 4.6% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 53.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: 37.4 (Supported · #70/146)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 82.0% | Coming soon | Coming soon |
| SWE-bench Verified | 47% | 80.5% | MiniMax M3 |
| SWE-bench Pro | 28% | 59% | MiniMax M3 |
| Terminal-Bench 2.1 | Coming soon | 66.0% | Coming soon |
| NL2Repo | Coming soon | 42.1% | Coming soon |
| VIBE V2 | Coming soon | 50.1% | Coming soon |
| SVG-Bench | Coming soon | 63.7% | Coming soon |
| KernelBench Hard | Coming soon | 28.8% | Coming soon |
| OpenHarmony Bench | Coming soon | 48.4% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 82.2% | Coming soon |
| SWE-bench (Vals) | Coming soon | 75.0% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: 79.4 (#5/28)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: 51.5 (#36/49)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 45.1% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 91.6% | Coming soon |
| MMMU-Pro | Coming soon | 78.1% | Coming soon |
| VideoMMMU | Coming soon | 84.6% | Coming soon |
| Video-MME (with subtitle) | Coming soon | 85.4% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: 48.4 (Supported · #77/174)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | 87.8% | Coming soon | Coming soon |
| GPQA-D | 64.6% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.7% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 84.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: 92.4 (#5/125)

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.6% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- MiniMax M3 public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | MiniMax M3 | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | Coming soon | 85.7% | Coming soon |

## FAQ

### Is there enough evidence to pick between Mellum2.1-12B-A2.5B-Thinking and MiniMax M3?

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

- [Mellum2.1-12B-A2.5B-Thinking vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mellum2-1-12b-a2-5b-thinking)
- [MiniMax M3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-minimax-m3)
- [Mellum2.1-12B-A2.5B-Thinking vs GPT-6 Astra](/compare/gpt-6-astra-vs-mellum2-1-12b-a2-5b-thinking)
- [MiniMax M3 vs GPT-6 Astra](/compare/gpt-6-astra-vs-minimax-m3)

## Explore More

- [Mellum2.1-12B-A2.5B-Thinking profile](/models/mellum2-1-12b-a2-5b-thinking)
- [MiniMax M3 profile](/models/minimax-m3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)