# MiniMax-M2.1 vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 38.9 on the Noometry Index. MiniMax-M2.1 costs 67× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/minimax-m2-1-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. MiniMax-M2.1 scores higher in 2 categories and o3-pro in 3 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 43.2.
- The biggest single-benchmark swing is Vectara Hallucination Rate: 11.8% for MiniMax-M2.1 and 23.3% for o3-pro.
- MiniMax-M2.1 is cheaper at $0.30 / $1.20 per million input/output tokens, against $20 / $80 for o3-pro.
- MiniMax-M2.1 accepts more context: 205K tokens versus 200K.
- MiniMax-M2.1 has downloadable open weights; the other is API-only.

## Snapshot

| | MiniMax-M2.1 | o3-pro |
|---|---|---|
| Provider | MiniMax | OpenAI |
| Noometry Index | 38.9 | 42.9 |
| Rank | 178 | 105 |
| Context | 205K | 200K |
| Input $/M | $0.30 | $20 |
| Output $/M | $1.20 | $80 |
| Weights | Open | Proprietary |

## Coding

- MiniMax-M2.1: 40.4 (#143)
- o3-pro: 55.5 (#24)

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| LMArena WebDev | 1384 | — |
| WeirdML | — | 58.2% |
| LMArena Coding | 1421 | — |
| ALE-Bench | 623.83 | — |

## Agentic & Tool Use

- MiniMax-M2.1: 27.9 (#98)
- o3-pro: —

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| Terminal-Bench | 36.6% | — |

## Reasoning

- MiniMax-M2.1: 16.6 (#302)
- o3-pro: 23.8 (#171)

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| NYT Connections (extended) | 11.2% | — |
| ARC-AGI-1 | — | 59.3% |
| LMArena Hard Prompts | 1411 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.42 |

## Math

- MiniMax-M2.1: 38.3 (#138)
- o3-pro: —

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| LMArena Math | 1397 | — |

## Knowledge

- MiniMax-M2.1: 38.3 (#147)
- o3-pro: 29.5 (#238)

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| Vectara Hallucination Rate | 11.8% | 23.3% |
| Confabulations | — | 14.2% |
| LMArena Expert | 1431 | — |

## Multilingual

- MiniMax-M2.1: 50.0 (#128)
- o3-pro: —

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| LMArena Non-English | 1378 | — |
| LMArena Chinese | 1430 | — |
| LMArena French | 1404 | — |
| LMArena German | 1381 | — |
| LMArena Japanese | 1287 | — |
| LMArena Korean | 1298 | — |
| LMArena Russian | 1387 | — |
| LMArena Spanish | 1397 | — |

## Instruction Following

- MiniMax-M2.1: 73.8 (#112)
- o3-pro: —

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1400 | — |

## Long Context

- MiniMax-M2.1: 43.2 (#101)
- o3-pro: 72.2 (#1)

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1416 | — |

## Writing & Preference

- MiniMax-M2.1: 58.3 (#120)
- o3-pro: 57.1 (#133)

| Benchmark | MiniMax-M2.1 | o3-pro |
|---|---|---|
| LMArena Text | 1392 | — |
| LMArena Creative Writing | 1361 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1396 | — |

## FAQ

### Is MiniMax-M2.1 better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 38.9 on the Noometry Index. MiniMax-M2.1 costs 67× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.

### Which is cheaper, MiniMax-M2.1 or o3-pro?

MiniMax-M2.1 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; o3-pro lists at $20 and $80.

### Is MiniMax-M2.1 or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 40.4 in the Noometry coding category.

### Which has the bigger context window?

MiniMax-M2.1 does, with 205K tokens against 200K.

### How many benchmarks do MiniMax-M2.1 and o3-pro share?

1 benchmark has published results for both models. MiniMax-M2.1 has 22 scored results on Noometry and o3-pro has 12.