# Gemini 1.0 Pro vs GPT-5.3 Chat

> GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 27.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-1-0-pro-vs-gpt-5-3-chat
- Last updated: 2026-10-10
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. Gemini 1.0 Pro scores higher in 0 categories and GPT-5.3 Chat in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-5.3 Chat leads 63.3 to 36.2.

## Snapshot

| | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 27.1 | 42.1 |
| Rank | 327 | 109 |
| Context | — | 128K |
| Input $/M | — | $1.75 |
| Output $/M | — | $14 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 1.0 Pro: 31.6 (#270)
- GPT-5.3 Chat: 40.8 (#124)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Coding | 1108 | 1408 |
| HumanEval+ | 55.5% | — |
| MBPP+ | 61.4% | — |

## Reasoning

- Gemini 1.0 Pro: 16.4 (#292)
- GPT-5.3 Chat: 27.3 (#105)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Hard Prompts | 1109 | 1399 |
| DTBench | 45.9% | — |
| Epoch Capabilities Index | 116.97 | — |

## Math

- Gemini 1.0 Pro: 8.7 (#315)
- GPT-5.3 Chat: 35.4 (#146)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Math | 1132 | 1389 |
| OTIS Mock AIME 2024-2025 | 1.1% | — |
| MATH Level 5 | 11.2% | — |

## Knowledge

- Gemini 1.0 Pro: 15.5 (#286)
- GPT-5.3 Chat: 38.2 (#137)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Expert | 1059 | 1397 |
| GPQA Diamond | 34% | — |
| MMLU | 70% | — |

## Multilingual

- Gemini 1.0 Pro: 33.5 (#247)
- GPT-5.3 Chat: 50.5 (#119)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Non-English | 1138 | 1383 |
| LMArena Chinese | 1124 | 1433 |
| LMArena French | 1144 | 1398 |
| LMArena German | 1125 | 1384 |
| LMArena Japanese | 1023 | 1351 |
| LMArena Russian | 1186 | 1400 |
| LMArena Spanish | 1118 | 1371 |
| LMArena Korean | — | 1347 |

## Instruction Following

- Gemini 1.0 Pro: 57.9 (#262)
- GPT-5.3 Chat: 73.0 (#124)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Instruction Following | 1114 | 1378 |

## Long Context

- Gemini 1.0 Pro: 34.3 (#244)
- GPT-5.3 Chat: 42.6 (#115)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Longer Query | 1132 | 1396 |

## Writing & Preference

- Gemini 1.0 Pro: 36.2 (#259)
- GPT-5.3 Chat: 63.3 (#65)

| Benchmark | Gemini 1.0 Pro | GPT-5.3 Chat |
|---|---|---|
| LMArena Text | 1149 | 1389 |
| LMArena Creative Writing | 1130 | 1356 |
| LMArena Multi-Turn | 1139 | 1413 |
| EQ-Bench Creative Writing | — | 1690 |

## FAQ

### Is Gemini 1.0 Pro better than GPT-5.3 Chat?

GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 27.1 on the Noometry Index.

### Is Gemini 1.0 Pro or GPT-5.3 Chat better for coding?

GPT-5.3 Chat scores higher on coding benchmarks: 40.8 versus 31.6 in the Noometry coding category.

### How many benchmarks do Gemini 1.0 Pro and GPT-5.3 Chat share?

16 benchmarks have published results for both models. Gemini 1.0 Pro has 24 scored results on Noometry and GPT-5.3 Chat has 18.