# GPT-5.5 Instant vs MiniMax-M3

> MiniMax-M3 is the stronger model overall, scoring 43.8 to 42.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-5-instant-vs-minimax-m3
- Last updated: 2026-10-12
- Shared benchmarks: 25

## Summary

- They share 25 benchmarks with published results for both. GPT-5.5 Instant scores higher in 1 category and MiniMax-M3 in 8 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where MiniMax-M3 leads 40.0 to 26.5.
- The biggest single-benchmark swing is GPQA Diamond: 82.5% for GPT-5.5 Instant and 90.9% for MiniMax-M3.
- MiniMax-M3 has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| Provider | OpenAI | MiniMax |
| Noometry Index | 42.7 | 43.8 |
| Rank | 110 | 85 |
| Context | — | 1M |
| Input $/M | — | $0.30 |
| Output $/M | — | $1.20 |
| Weights | Proprietary | Open |

## Coding

- GPT-5.5 Instant: 44.3 (#74)
- MiniMax-M3: 41.8 (#118)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| SciCode | 48.6% | 47.1% |
| LMArena Coding | 1433 | 1469 |
| FrontierCode | — | 14.7% |
| LMArena WebDev | — | 1482 |
| ALE-Bench | — | 640.02 |

## Agentic & Tool Use

- GPT-5.5 Instant: —
- MiniMax-M3: 22.6 (#130)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| APEX-Agents | — | 37.7% |
| OSWorld 2.0 | — | 4.6% |
| GBAEval | — | 0.9% |
| Vending-Bench 2 | — | 2,158 |

## Reasoning

- GPT-5.5 Instant: 24.9 (#155)
- MiniMax-M3: 30.1 (#87)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| CritPt | 0% | 3.7% |
| Chess Puzzles | 12% | 14% |
| LMArena Hard Prompts | 1426 | 1447 |
| Epoch Capabilities Index | 142.52 | 146.95 |
| SimpleBench | — | 45.8% |
| NYT Connections (extended) | — | 65.1% |
| Mystery Game Puzzles | — | 8% |
| DTBench | — | 78.9% |
| LMCA | — | 33.7% |
| Surface Evolver Bench | — | 55% |
| ForecastBench | — | 61.4 |

## Math

- GPT-5.5 Instant: 26.5 (#259)
- MiniMax-M3: 40.0 (#95)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 68.1% | 71.1% |
| LMArena Math | 1420 | 1429 |
| FrontierMath (Tiers 1-3) | 26.3% | — |
| FrontierMath Tier 4 | 2.4% | — |
| ProofBench | — | 18% |

## Knowledge

- GPT-5.5 Instant: 48.9 (#74)
- MiniMax-M3: 58.4 (#35)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| GPQA Diamond | 82.5% | 90.9% |
| LMArena Expert | 1409 | 1461 |

## Multimodal

- GPT-5.5 Instant: 40.0 (#52)
- MiniMax-M3: 40.2 (#51)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| LMArena Vision | 1250 | 1253 |
| LMArena Document | 1403 | 1435 |

## Multilingual

- GPT-5.5 Instant: 52.8 (#80)
- MiniMax-M3: 53.0 (#75)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| LMArena Non-English | 1417 | 1420 |
| LMArena Chinese | 1456 | 1463 |
| LMArena French | 1428 | 1447 |
| LMArena German | 1411 | 1426 |
| LMArena Japanese | 1408 | 1381 |
| LMArena Korean | 1392 | 1372 |
| LMArena Russian | 1431 | 1428 |
| LMArena Spanish | 1429 | 1432 |

## Instruction Following

- GPT-5.5 Instant: 74.2 (#100)
- MiniMax-M3: 75.5 (#62)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| LMArena Instruction Following | 1406 | 1433 |

## Long Context

- GPT-5.5 Instant: 43.4 (#96)
- MiniMax-M3: 44.2 (#72)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| LMArena Longer Query | 1422 | 1445 |

## Writing & Preference

- GPT-5.5 Instant: 61.8 (#85)
- MiniMax-M3: 62.1 (#83)

| Benchmark | GPT-5.5 Instant | MiniMax-M3 |
|---|---|---|
| LMArena Text | 1419 | 1433 |
| LMArena Creative Writing | 1419 | 1404 |
| LMArena Multi-Turn | 1433 | 1442 |
| EQ-Bench 4 | — | 1150 |

## FAQ

### Is GPT-5.5 Instant better than MiniMax-M3?

MiniMax-M3 is the stronger model overall, scoring 43.8 to 42.7 on the Noometry Index.

### Is GPT-5.5 Instant or MiniMax-M3 better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 41.8 in the Noometry coding category.

### How many benchmarks do GPT-5.5 Instant and MiniMax-M3 share?

25 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and MiniMax-M3 has 41.