# Gemini 3 Deep Think vs Gemma 4 31B IT

> Gemma 4 31B IT has enough public results to be ranked (#85); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/gemini-3-deep-think-vs-gemma-4-31b-it
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Gemini 3 Deep Think scores higher in 1 category and Gemma 4 31B IT in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.8 to 26.4.
- The biggest single-benchmark swing is CritPt: 25.7% for Gemini 3 Deep Think and 1.4% for Gemma 4 31B IT.
- Gemma 4 31B IT has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| Provider | Google | Google |
| Noometry Index | 58.5 | 43.2 |
| Rank | — | 85 |
| Context | — | 262K |
| Input $/M | — | $0.09 |
| Output $/M | — | $0.34 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 41.9 (#98)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| LMArena WebDev | — | 1364 |
| SciCode | — | 43.4% |
| WeirdML | — | 52.3% |
| LMArena Coding | — | 1459 |
| ALE-Bench | — | 925.5 |

## Reasoning

- Gemini 3 Deep Think: 70.8 (#11)
- Gemma 4 31B IT: 26.4 (#119)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| CritPt | 25.7% | 1.4% |
| ARC-AGI-2 | 84.6% | — |
| Kagi LLM Benchmark | — | 63.5% |
| NYT Connections (extended) | — | 70.6% |
| ARC-AGI-1 | 96% | — |
| Chess Puzzles | — | 5% |
| Thematic Generalization | — | 53% |
| LMArena Hard Prompts | — | 1448 |
| DTBench | — | 82.7% |
| LMCA | — | 39.3% |
| Surface Evolver Bench | — | 30.6% |
| Epoch Capabilities Index | — | 142.74 |

## Math

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 41.3 (#72)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 73.3% |
| LMArena Math | — | 1464 |

## Knowledge

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 37.9 (#141)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| GPQA Diamond | — | 75.8% |
| SimpleQA Verified | — | 10.4% |
| Vectara Hallucination Rate | — | 7.4% |
| LMArena Expert | — | 1465 |

## Multimodal

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 41.0 (#32)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| LMArena Vision | — | 1278 |
| LMArena Document | — | 1425 |

## Multilingual

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 54.0 (#52)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| LMArena Non-English | — | 1431 |
| LMArena Chinese | — | 1478 |
| LMArena French | — | 1436 |
| LMArena Russian | — | 1462 |
| LMArena Spanish | — | 1443 |

## Instruction Following

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 75.6 (#58)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| LMArena Instruction Following | — | 1433 |

## Long Context

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 44.2 (#67)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| LMArena Longer Query | — | 1446 |

## Writing & Preference

- Gemini 3 Deep Think: —
- Gemma 4 31B IT: 60.7 (#92)

| Benchmark | Gemini 3 Deep Think | Gemma 4 31B IT |
|---|---|---|
| LMArena Text | — | 1443 |
| LMArena Creative Writing | — | 1416 |
| EQ-Bench Creative Writing | — | 1368 |
| EQ-Bench 4 | — | 1120 |
| LMArena Multi-Turn | — | 1452 |

## FAQ

### Is Gemini 3 Deep Think better than Gemma 4 31B IT?

Gemma 4 31B IT has enough public results to be ranked (#85); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

### How many benchmarks do Gemini 3 Deep Think and Gemma 4 31B IT share?

1 benchmark has published results for both models. Gemini 3 Deep Think has 3 scored results on Noometry and Gemma 4 31B IT has 35.