# MiMo-V2.5 vs Mistral Medium 3.5 128B

> Side-by-side benchmark comparison for MiMo-V2.5 and Mistral Medium 3.5 128B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mimo-v2-5-vs-mistral-medium-3-5-128b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick MiMo-V2.5 if you want the stronger benchmark profile. Mistral Medium 3.5 128B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- MiMo-V2.5 leads overall 57.85 to 30.13.
- The clearest category separation is in agentic, where the averages are 49.4 for MiMo-V2.5 and 21.9 for Mistral Medium 3.5 128B.
- The biggest single benchmark swing is GPQA Diamond (Vals) in Knowledge, with scores of 81.6% and 34.8%.
- MiMo-V2.5 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- MiMo-V2.5 also has the larger context window at 1M.

## Model Snapshot

| Property | MiMo-V2.5 | Mistral Medium 3.5 128B |
|----------|----------|----------|
| Creator | Xiaomi | Mistral |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Overall Score | 57.85 | 30.13 |
| Benchmarks Covered | 15 | 7 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $1.50 / $7.50 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- MiMo-V2.5 public-lane score: 49.4 (Estimated · #59/152)
- Mistral Medium 3.5 128B public-lane score: 21.9 (Supported · #150/152)

| Benchmark | MiMo-V2.5 | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| Claw-Eval | 62.3% | Coming soon | Coming soon |
| MM-ClawBench | 23.8% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 65.8% | Coming soon | Coming soon |
| Gert Labs | 46.89% | 39.10% | MiMo-V2.5 |
| ResearchClawBench | 16.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 60.7% | 39.0% | MiMo-V2.5 |
| τ³-bench results | Coming soon | 91.4% | Coming soon |

### Coding

- Winner: Coming soon
- MiMo-V2.5 public-lane score: 43.6 (Supported · #99/151)
- Mistral Medium 3.5 128B public-lane score: 36.9 (Estimated · #127/151)

| Benchmark | MiMo-V2.5 | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 56.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 65.8% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 81.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 71.0% | 66.4% | MiMo-V2.5 |
| SWE-bench Verified | Coming soon | 77.6% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- MiMo-V2.5 public-lane score: 59.2 (#29/48)
- Mistral Medium 3.5 128B public-lane score: 55.6 (Unranked · 1 rankable row)

| Benchmark | MiMo-V2.5 | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| Video-MME (with subtitle) | 87.7% | Coming soon | Coming soon |
| CharXiv | 81% | Coming soon | Coming soon |
| MMMU-Pro | 77.9% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- MiMo-V2.5 public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 68.6 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Coming soon
- MiMo-V2.5 public-lane score: 52.1 (Estimated · #68/183)
- Mistral Medium 3.5 128B public-lane score: 39 (Supported · #140/183)

| Benchmark | MiMo-V2.5 | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 81.6% | 34.8% | MiMo-V2.5 |
| MMLU-Pro (Vals) | 82.9% | 75.3% | MiMo-V2.5 |

### Instruction Following

- Winner: Coming soon
- MiMo-V2.5 public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 84 (#48/123)

## FAQ

### Which is better overall, MiMo-V2.5 or Mistral Medium 3.5 128B?

MiMo-V2.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between MiMo-V2.5 and Mistral Medium 3.5 128B?

The widest category gap is in agentic, where the averages are 49.4 for MiMo-V2.5 and 21.9 for Mistral Medium 3.5 128B.

### How many benchmarks does MiMo-V2.5 cover on BenchLM?

MiMo-V2.5 currently has 15 sourced benchmark scores on BenchLM.

### How many benchmarks does Mistral Medium 3.5 128B cover on BenchLM?

Mistral Medium 3.5 128B currently has 7 sourced benchmark scores on BenchLM.

## Related Comparisons

- [MiMo-V2.5 vs MiMo-V2.5-Pro](/compare/mimo-v2-5-vs-mimo-v2-5-pro)
- [Mistral Medium 3.5 128B vs MiMo-V2.5-Pro](/compare/mimo-v2-5-pro-vs-mistral-medium-3-5-128b)
- [MiMo-V2.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mimo-v2-5)
- [Mistral Medium 3.5 128B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mistral-medium-3-5-128b)

## Explore More

- [MiMo-V2.5 profile](/models/mimo-v2-5)
- [Mistral Medium 3.5 128B profile](/models/mistral-medium-3-5-128b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)