# MiniMax-M2.5 vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 38.3 on the Noometry Index. MiniMax-M2.5 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-m2-5-vs-o3-pro
- Last updated: 2026-10-10
- Shared benchmarks: 5

## Summary

- They share 5 benchmarks with published results for both. MiniMax-M2.5 scores higher in 1 category and o3-pro in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 37.5.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 55.2% for MiniMax-M2.5 and 72.1% for o3-pro.
- MiniMax-M2.5 is cheaper at $0.30 / $1.20 per million input/output tokens, against $20 / $80 for o3-pro.
- MiniMax-M2.5 accepts more context: 205K tokens versus 200K.
- MiniMax-M2.5 has downloadable open weights; the other is API-only.

## Snapshot

| | MiniMax-M2.5 | o3-pro |
|---|---|---|
| Provider | MiniMax | OpenAI |
| Noometry Index | 38.3 | 42.9 |
| Rank | 188 | 105 |
| Context | 205K | 200K |
| Input $/M | $0.30 | $20 |
| Output $/M | $1.20 | $80 |
| Weights | Open | Proprietary |

## Coding

- MiniMax-M2.5: 48.1 (#58)
- o3-pro: 55.5 (#24)

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| SWE-bench Verified (bash only) | 75.8% | — |
| Aider Polyglot | — | 84.9% |
| LMArena WebDev | 1387 | — |
| SWE-bench Multilingual | 68.3% | — |
| WeirdML | — | 58.2% |
| LMArena Coding | 1381 | — |
| ALE-Bench | 618.17 | — |

## Agentic & Tool Use

- MiniMax-M2.5: 30.4 (#77)
- o3-pro: —

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| Terminal-Bench | 42.7% | — |
| Vending-Bench 2 | -23.16 | — |

## Reasoning

- MiniMax-M2.5: 17.5 (#292)
- o3-pro: 23.8 (#171)

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| ARC-AGI-2 | 4.9% | 4.9% |
| Kagi LLM Benchmark | 55.2% | 72.1% |
| ARC-AGI-1 | 63.7% | 59.3% |
| Epoch Capabilities Index | 146.68 | 147.42 |
| NYT Connections (extended) | 16.8% | — |
| LMArena Hard Prompts | 1372 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |

## Math

- MiniMax-M2.5: 26.9 (#253)
- o3-pro: —

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| ProofBench | 4% | — |
| LMArena Math | 1378 | — |

## Knowledge

- MiniMax-M2.5: 39.2 (#135)
- o3-pro: 29.5 (#238)

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| Vectara Hallucination Rate | 9.1% | 23.3% |
| Confabulations | — | 14.2% |
| LMArena Expert | 1379 | — |

## Multilingual

- MiniMax-M2.5: 47.1 (#152)
- o3-pro: —

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| LMArena Non-English | 1338 | — |
| LMArena Chinese | 1393 | — |
| LMArena French | 1362 | — |
| LMArena German | 1362 | — |
| LMArena Japanese | 1171 | — |
| LMArena Korean | 1232 | — |
| LMArena Russian | 1358 | — |
| LMArena Spanish | 1354 | — |

## Instruction Following

- MiniMax-M2.5: 71.5 (#148)
- o3-pro: —

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1353 | — |

## Long Context

- MiniMax-M2.5: 37.5 (#216)
- o3-pro: 72.2 (#1)

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| CL-bench | 11.4% | — |
| CL-bench Life | 6.3% | — |
| LMArena Longer Query | 1366 | — |

## Writing & Preference

- MiniMax-M2.5: 53.9 (#153)
- o3-pro: 57.1 (#133)

| Benchmark | MiniMax-M2.5 | o3-pro |
|---|---|---|
| LMArena Text | 1359 | — |
| LMArena Creative Writing | 1331 | — |
| Short-Story Creative Writing | — | 84.4% |
| EQ-Bench Creative Writing | 1361 | — |
| LMArena Multi-Turn | 1364 | — |

## FAQ

### Is MiniMax-M2.5 better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 38.3 on the Noometry Index. MiniMax-M2.5 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-M2.5 or o3-pro?

MiniMax-M2.5 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-M2.5 or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 48.1 in the Noometry coding category.

### Which has the bigger context window?

MiniMax-M2.5 does, with 205K tokens against 200K.

### How many benchmarks do MiniMax-M2.5 and o3-pro share?

5 benchmarks have published results for both models. MiniMax-M2.5 has 33 scored results on Noometry and o3-pro has 12.