# Gemini 3.7 Flash vs Mistral Medium 3.5 128B

> Side-by-side benchmark comparison for Gemini 3.7 Flash and Mistral Medium 3.5 128B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-7-flash-vs-mistral-medium-3-5-128b
- Last updated: September 27, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Gemini 3.7 Flash 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

- Gemini 3.7 Flash leads overall 67.66 to 36.05.
- The clearest category separation is in knowledge, where the averages are 71.1 for Gemini 3.7 Flash and 32.1 for Mistral Medium 3.5 128B.
- The biggest single benchmark swing is GPQA Diamond (Vals) in Knowledge, with scores of 93.9% and 34.8%.
- Gemini 3.7 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.7 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.7 Flash | Mistral Medium 3.5 128B |
|----------|----------|----------|
| Creator | Google | Mistral |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Overall Score | 67.66 | 36.05 |
| Benchmarks Covered | 25 | 7 |
| Pricing (input/output) | $0.75 / $3.75 | $1.50 / $7.50 |

## Category Breakdown

### Agentic

- Winner: Gemini 3.7 Flash
- Gemini 3.7 Flash public-lane score: 58.6 (Supported · #20/105)
- Mistral Medium 3.5 128B public-lane score: 20.1 (Supported · #86/105)

| Benchmark | Gemini 3.7 Flash | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.8% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | 14.9% | Coming soon | Coming soon |
| AutomationBench | 30.4% | Coming soon | Coming soon |
| OSWorld 2.0 | 47.9% | Coming soon | Coming soon |
| Agents' Last Exam | 26.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 77.5% | 39.0% | Gemini 3.7 Flash |
| ApprenticeBench | 16% | Coming soon | Coming soon |
| τ³-bench results | Coming soon | 91.4% | Coming soon |
| Gert Labs | Coming soon | 39.10% | Coming soon |

### Coding

- Winner: Directional only
- Gemini 3.7 Flash public-lane score: 60.3 (Supported · #17/135)
- Mistral Medium 3.5 128B public-lane score: 26.9 (Estimated · #94/135)

| Benchmark | Gemini 3.7 Flash | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| FrontierCode 1.1 Main | 43.6% | Coming soon | Coming soon |
| DeepSWE | 65.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 85.8% | Coming soon | Coming soon |
| FrontierSWE v2 | 20.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.7% | Coming soon | Coming soon |
| SWE-bench (Vals) | 80.8% | 66.4% | Gemini 3.7 Flash |
| SWE-bench Verified | Coming soon | 77.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 77.8 (Unranked · 5 rankable rows)
- Mistral Medium 3.5 128B public-lane score: 69.7 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.7 Flash | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 64K-128K | 97% | Coming soon | Coming soon |
| ARC-AGI-1 | 95.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 84.6% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: 82.6 (#10/50)
- Mistral Medium 3.5 128B public-lane score: 55.7 (Unranked · 1 rankable row)

| Benchmark | Gemini 3.7 Flash | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| CharXiv w/o tools | 84.5% | Coming soon | Coming soon |
| CharXiv | 88.7% | Coming soon | Coming soon |
| LVBench | 85.4% | Coming soon | Coming soon |

### Knowledge

- Winner: Gemini 3.7 Flash
- Gemini 3.7 Flash public-lane score: 71.1 (Supported · #10/158)
- Mistral Medium 3.5 128B public-lane score: 32.1 (Supported · #120/158)

| Benchmark | Gemini 3.7 Flash | Mistral Medium 3.5 128B | Winner |
|-----------|-----------|-----------|--------|
| HLE-Verified | 53.6% | Coming soon | Coming soon |
| LABBench2 | 82.1% | Coming soon | Coming soon |
| BioMysteryBench (human-solvable) | 87.1% | Coming soon | Coming soon |
| BioMysteryBench (human-difficult) | 43.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 93.9% | 34.8% | Gemini 3.7 Flash |
| MMLU-Pro (Vals) | 90.1% | 75.3% | Gemini 3.7 Flash |

### Instruction Following

- Winner: Not comparable
- Gemini 3.7 Flash public-lane score: Coming soon
- Mistral Medium 3.5 128B public-lane score: 82.6 (#49/124)

## FAQ

### Which is better overall, Gemini 3.7 Flash or Mistral Medium 3.5 128B?

Gemini 3.7 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.7 Flash and Mistral Medium 3.5 128B?

The widest category gap is in knowledge, where the averages are 71.1 for Gemini 3.7 Flash and 32.1 for Mistral Medium 3.5 128B.

### How many benchmarks does Gemini 3.7 Flash cover on BenchLM?

Gemini 3.7 Flash currently has 25 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

- [Gemini 3.7 Flash vs GPT-6 Astra](/compare/gemini-3-7-flash-vs-gpt-6-astra)
- [Mistral Medium 3.5 128B vs GPT-6 Astra](/compare/gpt-6-astra-vs-mistral-medium-3-5-128b)
- [Gemini 3.7 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-7-flash)
- [Mistral Medium 3.5 128B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mistral-medium-3-5-128b)

## Explore More

- [Gemini 3.7 Flash profile](/models/gemini-3-7-flash)
- [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)