# o3-pro vs Qwen3-4B

> o3-pro is the stronger model overall, scoring 42.9 to 31.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/o3-pro-vs-qwen3-4b
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. o3-pro scores higher in 1 category and Qwen3-4B in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where o3-pro leads 23.8 to 19.2.
- The biggest single-benchmark swing is Vectara Hallucination Rate: 23.3% for o3-pro and 5.7% for Qwen3-4B.
- Qwen3-4B has downloadable open weights; the other is API-only.

## Snapshot

| | o3-pro | Qwen3-4B |
|---|---|---|
| Provider | OpenAI | Alibaba (Qwen) |
| Noometry Index | 42.9 | 31.9 |
| Rank | 105 | 264 |
| Context | 200K | — |
| Input $/M | $20 | — |
| Output $/M | $80 | — |
| Weights | Proprietary | Open |

## Coding

- o3-pro: 55.5 (#24)
- Qwen3-4B: —

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| Aider Polyglot | 84.9% | — |
| WeirdML | 58.2% | — |

## Agentic & Tool Use

- o3-pro: —
- Qwen3-4B: 27.6 (#100)

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 35.7% |

## Reasoning

- o3-pro: 23.8 (#171)
- Qwen3-4B: 19.2 (#268)

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| ARC-AGI-2 | 4.9% | — |
| Kagi LLM Benchmark | 72.1% | — |
| ARC-AGI-1 | 59.3% | — |
| Chess Puzzles | — | 4% |
| DTBench | 86.9% | — |
| LMCA | 38.5% | — |
| Epoch Capabilities Index | 147.42 | — |

## Math

- o3-pro: —
- Qwen3-4B: 29.7 (#240)

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| MathArena Final-Answer Competitions | — | 38.5% |
| OTIS Mock AIME 2024-2025 | — | 52.2% |

## Knowledge

- o3-pro: 29.5 (#238)
- Qwen3-4B: 33.0 (#208)

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| Vectara Hallucination Rate | 23.3% | 5.7% |
| GPQA Diamond | — | 52.3% |
| Confabulations | 14.2% | — |

## Long Context

- o3-pro: 72.2 (#1)
- Qwen3-4B: —

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| Fiction.LiveBench | 97.2% | — |

## Writing & Preference

- o3-pro: 57.1 (#133)
- Qwen3-4B: —

| Benchmark | o3-pro | Qwen3-4B |
|---|---|---|
| Short-Story Creative Writing | 84.4% | — |

## FAQ

### Is o3-pro better than Qwen3-4B?

o3-pro is the stronger model overall, scoring 42.9 to 31.9 on the Noometry Index.

### How many benchmarks do o3-pro and Qwen3-4B share?

1 benchmark has published results for both models. o3-pro has 12 scored results on Noometry and Qwen3-4B has 6.