# Llama 3.2 1B vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 20.1 on the Noometry Index. Llama 3.2 1B costs 496× 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/llama-3-2-1b-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Llama 3.2 1B scores higher in 0 categories and o3-pro in 5 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in long context, where o3-pro leads 72.2 to 31.9.
- Llama 3.2 1B is cheaper at $0.027 / $0.20 per million input/output tokens, against $20 / $80 for o3-pro.
- o3-pro accepts more context: 200K tokens versus 60K.
- Llama 3.2 1B has downloadable open weights; the other is API-only.

## Snapshot

| | Llama 3.2 1B | o3-pro |
|---|---|---|
| Provider | Meta | OpenAI |
| Noometry Index | 20.1 | 42.9 |
| Rank | 354 | 105 |
| Context | 60K | 200K |
| Input $/M | $0.027 | $20 |
| Output $/M | $0.20 | $80 |
| Weights | Open | Proprietary |

## Coding

- Llama 3.2 1B: 21.1 (#338)
- o3-pro: 55.5 (#24)

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| BigCodeBench Instruct | 8.2% | — |
| LMArena Coding | 1070 | — |
| BigCodeBench Complete | 11.3% | — |

## Agentic & Tool Use

- Llama 3.2 1B: 14.6 (#150)
- o3-pro: —

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| Berkeley Function Calling Leaderboard | 10.8% | — |
| BALROG | 6.6% | — |

## Reasoning

- Llama 3.2 1B: 16.2 (#308)
- o3-pro: 23.8 (#171)

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| Epoch Capabilities Index | 101.99 | 147.42 |
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| Chess Puzzles | 0% | — |
| LMArena Hard Prompts | 1044 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |

## Math

- Llama 3.2 1B: 10.4 (#313)
- o3-pro: —

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 0.6% | — |
| LMArena Math | 1086 | — |

## Knowledge

- Llama 3.2 1B: 7.2 (#312)
- o3-pro: 29.5 (#238)

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| GPQA Diamond | 23.9% | — |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1007 | — |

## Multilingual

- Llama 3.2 1B: 23.8 (#292)
- o3-pro: —

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| LMArena Non-English | 973 | — |
| LMArena Chinese | 959 | — |
| LMArena German | 1014 | — |
| LMArena Russian | 941 | — |

## Instruction Following

- Llama 3.2 1B: 52.4 (#290)
- o3-pro: —

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1031 | — |

## Long Context

- Llama 3.2 1B: 31.9 (#274)
- o3-pro: 72.2 (#1)

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1050 | — |

## Writing & Preference

- Llama 3.2 1B: 21.3 (#310)
- o3-pro: 57.1 (#133)

| Benchmark | Llama 3.2 1B | o3-pro |
|---|---|---|
| LMArena Text | 1055 | — |
| LMArena Creative Writing | 1033 | — |
| Short-Story Creative Writing | — | 84.4% |
| EQ-Bench Creative Writing | 200 | — |
| LMArena Multi-Turn | 1030 | — |

## FAQ

### Is Llama 3.2 1B better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 20.1 on the Noometry Index. Llama 3.2 1B costs 496× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.

### Which is cheaper, Llama 3.2 1B or o3-pro?

Llama 3.2 1B is cheaper. It lists at $0.027 per million input tokens and $0.20 per million output tokens; o3-pro lists at $20 and $80.

### Is Llama 3.2 1B or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 21.1 in the Noometry coding category.

### Which has the bigger context window?

o3-pro does, with 200K tokens against 60K.

### How many benchmarks do Llama 3.2 1B and o3-pro share?

1 benchmark has published results for both models. Llama 3.2 1B has 22 scored results on Noometry and o3-pro has 12.