# Mellum2.1-12B-A2.5B-Thinking vs Ripple-65B Preview

> Side-by-side benchmark comparison for Mellum2.1-12B-A2.5B-Thinking and Ripple-65B Preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mellum2-1-12b-a2-5b-thinking-vs-ripple-65b-preview
- Last updated: November 4, 2026

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

## Quick Verdict

Pick Mellum2.1-12B-A2.5B-Thinking if you want the stronger benchmark profile. Ripple-65B Preview only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Mellum2.1-12B-A2.5B-Thinking leads overall 39 to 0.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 17.4% and 80.5%.
- Ripple-65B Preview is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Ripple-65B Preview also has the larger context window at 1M.

## Model Snapshot

| Property | Mellum2.1-12B-A2.5B-Thinking | Ripple-65B Preview |
|----------|----------|----------|
| Creator | JetBrains | Ricursive Intelligence |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 7 | 17 |
| Pricing (input/output) | $0.00 / $0.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Ripple-65B Preview public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Ripple-65B Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 17.4% | 80.5% | Ripple-65B Preview |
| τ³-bench results | Coming soon | 31.3% | Coming soon |
| AutomationBench | Coming soon | 36.4% | Coming soon |
| MCP Atlas | Coming soon | 71.7% | Coming soon |

### Coding

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Ripple-65B Preview public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Ripple-65B Preview | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 82.0% | Coming soon | Coming soon |
| SWE-bench Verified | 47% | 76.5% | Ripple-65B Preview |
| SWE-bench Pro | 28% | 61.4% | Ripple-65B Preview |
| Terminal-Bench 2.1 | Coming soon | 80.5% | Coming soon |
| DeepSWE | Coming soon | 44.3% | Coming soon |
| SciCode | Coming soon | 39.4% | Coming soon |

### Knowledge

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Ripple-65B Preview public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Ripple-65B Preview | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Redux | 87.8% | Coming soon | Coming soon |
| GPQA-D | 64.6% | 85.2% | Ripple-65B Preview |
| MMLU | Coming soon | 89.6% | Coming soon |
| MMLU-Pro | Coming soon | 84.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Ripple-65B Preview public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Ripple-65B Preview | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.6% | Coming soon | Coming soon |
| IFBench | Coming soon | 79.2% | Coming soon |

### Mathematics

- Winner: Not comparable
- Mellum2.1-12B-A2.5B-Thinking public-lane score: Coming soon
- Ripple-65B Preview public-lane score: Coming soon

| Benchmark | Mellum2.1-12B-A2.5B-Thinking | Ripple-65B Preview | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | Coming soon | 97.1% | Coming soon |
| AIME 2025 | Coming soon | 98.3% | Coming soon |
| AIME26 | Coming soon | 95.0% | Coming soon |
| HMMT Feb 2026 | Coming soon | 90.5% | Coming soon |

## FAQ

### Which is better overall, Mellum2.1-12B-A2.5B-Thinking or Ripple-65B Preview?

Mellum2.1-12B-A2.5B-Thinking is ahead overall on BenchLM right now.

### How many benchmarks does Mellum2.1-12B-A2.5B-Thinking cover on BenchLM?

Mellum2.1-12B-A2.5B-Thinking currently has 7 sourced benchmark scores on BenchLM.

### How many benchmarks does Ripple-65B Preview cover on BenchLM?

Ripple-65B Preview currently has 17 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Mellum2.1-12B-A2.5B-Thinking vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-mellum2-1-12b-a2-5b-thinking)
- [Ripple-65B Preview vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-ripple-65b-preview)
- [Mellum2.1-12B-A2.5B-Thinking vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mellum2-1-12b-a2-5b-thinking)
- [Ripple-65B Preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-ripple-65b-preview)

## Explore More

- [Mellum2.1-12B-A2.5B-Thinking profile](/models/mellum2-1-12b-a2-5b-thinking)
- [Ripple-65B Preview profile](/models/ripple-65b-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)