Model comparison
Gemini 1.5 Flash (May 2024) vs GPT-5.4 Pro
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 32.9 on the Noometry Index.
Last verified . 4 shared benchmarks.
GoogleSummary
- They share 4 benchmarks with published results for both. Gemini 1.5 Flash (May 2024) scores higher in 0 categories and GPT-5.4 Pro in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.4 Pro leads 72.0 to 20.8.
- The biggest single-benchmark swing is GPQA Diamond: 47.3% for Gemini 1.5 Flash (May 2024) and 94.6% for GPT-5.4 Pro.
Side by side
| Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 32.9 | 58.8 |
| Released | 2024-05-14 | 2026-03-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 42 | 16 |
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Category by category
Coding GPT-5.4 Pro leads
Gemini 1.5 Flash (May 2024): 33.9 (#233), GPT-5.4 Pro: 42.6 (#89)
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| WeirdML | 24.9% | 57.4% |
| BigCodeBench Instruct | 43.5% | — |
| LMArena Coding | 1262 | — |
| BigCodeBench Complete | 55.1% | — |
| HumanEval+ | 75.6% | — |
| MBPP+ | 67.5% | — |
Agentic & Tool Use Not comparable
Gemini 1.5 Flash (May 2024): 26.3 (#97), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| BALROG | 14.6% | — |
Reasoning GPT-5.4 Pro leads
Gemini 1.5 Flash (May 2024): 20.8 (#212), GPT-5.4 Pro: 71.0 (#10)
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| Epoch Capabilities Index | 129.37 | 159.12 |
| ARC-AGI-2 | — | 83.3% |
| SimpleBench | — | 74.1% |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 30% |
| Chess Puzzles | — | 58.6% |
| EnigmaEval | — | 23.8% |
| LMArena Hard Prompts | 1257 | — |
| DTBench | 53.8% | — |
| ForecastBench | 53.9 | — |
| PIQA | 87.5% | — |
Math GPT-5.4 Pro leads
Gemini 1.5 Flash (May 2024): 20.8 (#274), GPT-5.4 Pro: 72.0 (#17)
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Feb 2025 set) | 0% | 50% |
| FrontierMath (Tiers 1-3) | — | 82.5% |
| FrontierMath Tier 4 | — | 58.5% |
| OTIS Mock AIME 2024-2025 | 16.3% | — |
| Omni-MATH | 30.4% | — |
| LMArena Math | 1269 | — |
| MATH Level 5 | 61.9% | — |
| FrontierMath Tier 4 (v1) | — | 37.5% |
| GSM8K | 82.4% | — |
Knowledge GPT-5.4 Pro leads
Gemini 1.5 Flash (May 2024): 26.2 (#253), GPT-5.4 Pro: 68.3 (#6)
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | 47.3% | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| MMLU-Pro | 67.8% | — |
| Vectara Hallucination Rate | — | 8.3% |
| GPQA (HELM) | 43.7% | — |
| LMArena Expert | 1233 | — |
| BoolQ | 85.8% | — |
| MMLU | 77.9% | — |
Multimodal Not comparable
Gemini 1.5 Flash (May 2024): 35.3 (#76), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| LMArena Vision | 1141 | — |
| Video-MME | 70.3% | — |
| GeoBench | 76% | — |
Multilingual Not comparable
Gemini 1.5 Flash (May 2024): 43.1 (#184), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| LMArena Non-English | 1278 | — |
| LMArena Chinese | 1295 | — |
| LMArena French | 1257 | — |
| LMArena German | 1262 | — |
| LMArena Japanese | 1252 | — |
| LMArena Korean | 1220 | — |
| LMArena Russian | 1288 | — |
| LMArena Spanish | 1242 | — |
Instruction Following Not comparable
Gemini 1.5 Flash (May 2024): 67.0 (#199), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| IFEval | 83.1% | — |
| LMArena Instruction Following | 1258 | — |
Long Context Not comparable
Gemini 1.5 Flash (May 2024): 39.0 (#182), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| LMArena Longer Query | 1284 | — |
Writing & Preference Not comparable
Gemini 1.5 Flash (May 2024): 48.9 (#190), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-5.4 Pro |
|---|---|---|
| LMArena Text | 1287 | — |
| LMArena Creative Writing | 1285 | — |
| WildBench | 79.2% | — |
| LMArena Multi-Turn | 1253 | — |
Frequently asked questions
Is Gemini 1.5 Flash (May 2024) better than GPT-5.4 Pro?
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 32.9 on the Noometry Index.
Is Gemini 1.5 Flash (May 2024) or GPT-5.4 Pro better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 42.6 versus 33.9 in the Noometry coding category.
How many benchmarks do Gemini 1.5 Flash (May 2024) and GPT-5.4 Pro share?
4 benchmarks have published results for both models. Gemini 1.5 Flash (May 2024) has 42 scored results on Noometry and GPT-5.4 Pro has 16.