# GPT-OSS 120B vs MiniMax M3.1 Flash

> Side-by-side benchmark comparison for GPT-OSS 120B and MiniMax M3.1 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-oss-120b-vs-minimax-m3-1-flash
- Last updated: October 19, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-OSS 120B and MiniMax M3.1 Flash.

## Summary

- GPT-OSS 120B and MiniMax M3.1 Flash do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | GPT-OSS 120B | MiniMax M3.1 Flash |
|----------|----------|----------|
| Creator | OpenAI | MiniMax |
| Type | Open Weight | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 1M |
| Independent public score (not head-to-head) | 37.28 | 67.05 |
| Benchmarks Covered | 8 | 14 |
| Pricing (input/output) | $0.00 / $0.00 | $0.15 / $0.60 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: 19.9 (Estimated · #112/130)
- MiniMax M3.1 Flash public-lane score: 63.9 (Estimated · #19/130)

| Benchmark | GPT-OSS 120B | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 29.61% | Coming soon | Coming soon |
| LOCA-Bench 256K | Coming soon | 60.3 | Coming soon |
| SWE Refactor Bench | Coming soon | 23.0 | Coming soon |
| AutomationBench | Coming soon | 62.2% | Coming soon |
| BankerToolBench | Coming soon | 76.2% | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 38.10% | Coming soon |
| Agents' Last Exam | Coming soon | 29.6% | Coming soon |
| OSWorld 2.0 | Coming soon | 61.7% | Coming soon |
| CyberGym | Coming soon | 82.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: 23 (Estimated · #112/151)
- MiniMax M3.1 Flash public-lane score: 61.3 (Supported · #17/151)

| Benchmark | GPT-OSS 120B | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 62.4% | Coming soon | Coming soon |
| React Native Evals | 71.6% | Coming soon | Coming soon |
| PostTrainBench v1.1 | Coming soon | 39.3% | Coming soon |
| DeepSWE | Coming soon | 73.7% | Coming soon |
| NL2Repo | Coming soon | 61.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: 61.6 (Unranked · 2 rankable rows)
- MiniMax M3.1 Flash public-lane score: 80.6 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: Coming soon
- MiniMax M3.1 Flash public-lane score: 73.5 (#30/55)

| Benchmark | GPT-OSS 120B | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| BabyVision w/ Python | Coming soon | 91.0% | Coming soon |
| CharXiv | Coming soon | 82.5% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: 38.6 (Supported · #123/186)
- MiniMax M3.1 Flash public-lane score: 73.2 (Supported · #14/186)

| Benchmark | GPT-OSS 120B | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 90% | Coming soon | Coming soon |
| GPQA | 80.1% | Coming soon | Coming soon |
| HLE | 14.9% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 43.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: 84.3 (#50/148)
- MiniMax M3.1 Flash public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- GPT-OSS 120B public-lane score: Coming soon
- MiniMax M3.1 Flash public-lane score: Coming soon

| Benchmark | GPT-OSS 120B | MiniMax M3.1 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 95.8% | Coming soon | Coming soon |
| AIME 2025 | 92.5% | Coming soon | Coming soon |

## FAQ

### Can I compare GPT-OSS 120B and MiniMax M3.1 Flash on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [GPT-OSS 120B vs GPT-OSS 20B](/compare/gpt-oss-120b-vs-gpt-oss-20b)
- [MiniMax M3.1 Flash vs GPT-OSS 20B](/compare/gpt-oss-20b-vs-minimax-m3-1-flash)
- [GPT-OSS 120B vs MiniMax M3.1 Flash Preview](/compare/gpt-oss-120b-vs-minimax-m3-1-flash-preview)
- [MiniMax M3.1 Flash vs MiniMax M3.1 Flash Preview](/compare/minimax-m3-1-flash-vs-minimax-m3-1-flash-preview)

## Explore More

- [GPT-OSS 120B profile](/models/gpt-oss-120b)
- [MiniMax M3.1 Flash profile](/models/minimax-m3-1-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)