# Gemma 3 1B vs GPT-5 Pro

> GPT-5 Pro is the stronger model overall, scoring 46.2 to 20.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-3-1b-vs-gpt-5-pro
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in knowledge, where GPT-5 Pro leads 56.2 to 7.1.
- Gemma 3 1B has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 3 1B | GPT-5 Pro |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 20.7 | 46.2 |
| Rank | 348 | 58 |
| Context | — | 400K |
| Input $/M | — | $15 |
| Output $/M | — | $120 |
| Weights | Open | Proprietary |

## Coding

- Gemma 3 1B: —
- GPT-5 Pro: 43.4 (#77)

| Benchmark | Gemma 3 1B | GPT-5 Pro |
|---|---|---|
| WeirdML | — | 60.4% |
| AlgoTune | — | 1.31 |

## Agentic & Tool Use

- Gemma 3 1B: 13.5 (#144)
- GPT-5 Pro: —

| Benchmark | Gemma 3 1B | GPT-5 Pro |
|---|---|---|
| Berkeley Function Calling Leaderboard | 7.2% | — |

## Reasoning

- Gemma 3 1B: 18.5 (#260)
- GPT-5 Pro: 39.2 (#52)

| Benchmark | Gemma 3 1B | GPT-5 Pro |
|---|---|---|
| ARC-AGI-2 | — | 18.3% |
| SimpleBench | — | 61.6% |
| Kagi LLM Benchmark | — | 76.8% |
| ARC-AGI-1 | — | 70.2% |
| Chess Puzzles | 0% | — |
| EnigmaEval | — | 18.8% |
| Epoch Capabilities Index | — | 150.26 |

## Math

- Gemma 3 1B: 9.6 (#310)
- GPT-5 Pro: 48.0 (#53)

| Benchmark | Gemma 3 1B | GPT-5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 55.8% |
| FrontierMath Tier 4 | — | 19.5% |
| OTIS Mock AIME 2024-2025 | 1.1% | — |
| FrontierMath Tier 4 (v1) | — | 14.6% |

## Knowledge

- Gemma 3 1B: 7.1 (#309)
- GPT-5 Pro: 56.2 (#39)

| Benchmark | Gemma 3 1B | GPT-5 Pro |
|---|---|---|
| GPQA Diamond | 19.9% | — |
| Humanity's Last Exam | — | 31.6% |

## FAQ

### Is Gemma 3 1B better than GPT-5 Pro?

GPT-5 Pro is the stronger model overall, scoring 46.2 to 20.7 on the Noometry Index.

### How many benchmarks do Gemma 3 1B and GPT-5 Pro share?

0 benchmarks have published results for both models. Gemma 3 1B has 4 scored results on Noometry and GPT-5 Pro has 12.