Model comparison
Gemini 1.5 Pro (May 2024) vs GPT-5.3 Chat
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 31.9 on the Noometry Index.
Last verified . 17 shared benchmarks.
GoogleSummary
- They share 17 benchmarks with published results for both. Gemini 1.5 Pro (May 2024) 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 reasoning, where GPT-5.3 Chat leads 27.3 to 12.3.
Side by side
| Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 31.9 | 42.1 |
| Released | 2024-02-15 | 2026-03-03 |
| Weights | Proprietary | Proprietary |
| Context window | — | 128K |
| Max output | — | 16K |
| Input $ / M tokens | — | $1.75 |
| Output $ / M tokens | — | $14 |
| Results tracked | 45 | 18 |
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Category by category
Coding GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 33.8 (#239), GPT-5.3 Chat: 40.8 (#124)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Coding | 1294 | 1408 |
| WeirdML | 22.2% | — |
| BigCodeBench Instruct | 43.8% | — |
| BigCodeBench Complete | 57.5% | — |
| CadEval | 34% | — |
| HumanEval+ | 79.3% | — |
| MBPP+ | 74.6% | — |
Agentic & Tool Use Not comparable
Gemini 1.5 Pro (May 2024): 17.8 (#137), GPT-5.3 Chat: —
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| TheAgentCompany | 3.4% | — |
| Cybench | 7.5% | — |
| BALROG | 21% | — |
Reasoning GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 12.3 (#332), GPT-5.3 Chat: 27.3 (#105)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Hard Prompts | 1296 | 1399 |
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 27.1% | — |
| DTBench | 59% | — |
| BIG-Bench Hard | 89.2% | — |
| Epoch Capabilities Index | 131.73 | — |
| ForecastBench | 58.4 | — |
Math GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 24.4 (#260), GPT-5.3 Chat: 35.4 (#146)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Math | 1315 | 1389 |
| OTIS Mock AIME 2024-2025 | 23.1% | — |
| Omni-MATH | 36.4% | — |
| MATH Level 5 | 70.4% | — |
Knowledge GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 29.3 (#228), GPT-5.3 Chat: 38.2 (#137)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Expert | 1279 | 1397 |
| GPQA Diamond | 57.2% | — |
| Humanity's Last Exam | 4.6% | — |
| MMLU-Pro | 73.7% | — |
| Confabulations | 13.5% | — |
| GPQA (HELM) | 53.4% | — |
| MMLU | 86.9% | — |
Multimodal Not comparable
Gemini 1.5 Pro (May 2024): 36.2 (#72), GPT-5.3 Chat: —
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Vision | 1161 | — |
| Video-MME | 75% | — |
Multilingual GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 45.5 (#169), GPT-5.3 Chat: 50.5 (#119)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Non-English | 1312 | 1383 |
| LMArena Chinese | 1331 | 1433 |
| LMArena French | 1301 | 1398 |
| LMArena German | 1286 | 1384 |
| LMArena Japanese | 1292 | 1351 |
| LMArena Korean | 1298 | 1347 |
| LMArena Russian | 1320 | 1400 |
| LMArena Spanish | 1310 | 1371 |
Instruction Following GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 68.8 (#180), GPT-5.3 Chat: 73.0 (#124)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Instruction Following | 1297 | 1378 |
| IFEval | 83.7% | — |
Long Context GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 39.7 (#164), GPT-5.3 Chat: 42.6 (#115)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Longer Query | 1308 | 1396 |
Writing & Preference GPT-5.3 Chat leads
Gemini 1.5 Pro (May 2024): 52.5 (#167), GPT-5.3 Chat: 63.3 (#65)
| Benchmark | Gemini 1.5 Pro (May 2024) | GPT-5.3 Chat |
|---|---|---|
| LMArena Text | 1319 | 1389 |
| LMArena Creative Writing | 1333 | 1356 |
| LMArena Multi-Turn | 1296 | 1413 |
| EQ-Bench Creative Writing | — | 1690 |
| WildBench | 81.3% | — |
Frequently asked questions
Is Gemini 1.5 Pro (May 2024) better than GPT-5.3 Chat?
GPT-5.3 Chat is the stronger model overall, scoring 42.1 to 31.9 on the Noometry Index.
Is Gemini 1.5 Pro (May 2024) or GPT-5.3 Chat better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 40.8 versus 33.8 in the Noometry coding category.
How many benchmarks do Gemini 1.5 Pro (May 2024) and GPT-5.3 Chat share?
17 benchmarks have published results for both models. Gemini 1.5 Pro (May 2024) has 45 scored results on Noometry and GPT-5.3 Chat has 18.