Model comparison
Gemini 1.5 Flash 8B vs GPT-5.4 Pro
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 29.7 on the Noometry Index.
Last verified . 1 shared benchmarks.
GoogleSummary
- They share 1 benchmark with published results for both. Gemini 1.5 Flash 8B 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 13.3.
- The biggest single-benchmark swing is GPQA Diamond: 33% for Gemini 1.5 Flash 8B and 94.6% for GPT-5.4 Pro.
Side by side
| Gemini 1.5 Flash 8B | GPT-5.4 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 29.7 | 58.8 |
| Released | 2024-10-03 | 2026-03-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 21 | 16 |
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Category by category
Coding GPT-5.4 Pro leads
Gemini 1.5 Flash 8B: 34.9 (#221), GPT-5.4 Pro: 42.6 (#89)
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| WeirdML | — | 57.4% |
| LMArena Coding | 1218 | — |
Reasoning GPT-5.4 Pro leads
Gemini 1.5 Flash 8B: 19.2 (#242), GPT-5.4 Pro: 71.0 (#10)
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| 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 | 1210 | — |
| DTBench | 50% | — |
| Epoch Capabilities Index | — | 159.12 |
Math GPT-5.4 Pro leads
Gemini 1.5 Flash 8B: 13.3 (#296), GPT-5.4 Pro: 72.0 (#17)
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 82.5% |
| FrontierMath Tier 4 | — | 58.5% |
| OTIS Mock AIME 2024-2025 | 4.6% | — |
| LMArena Math | 1207 | — |
| FrontierMath (Feb 2025 set) | — | 50% |
| FrontierMath Tier 4 (v1) | — | 37.5% |
Knowledge GPT-5.4 Pro leads
Gemini 1.5 Flash 8B: 16.0 (#285), GPT-5.4 Pro: 68.3 (#6)
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | 33% | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| Vectara Hallucination Rate | — | 8.3% |
| LMArena Expert | 1185 | — |
Multimodal Not comparable
Gemini 1.5 Flash 8B: 27.6 (#110), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| LMArena Vision | 1044 | — |
Multilingual Not comparable
Gemini 1.5 Flash 8B: 38.6 (#224), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| LMArena Non-English | 1215 | — |
| LMArena Chinese | 1231 | — |
| LMArena French | 1233 | — |
| LMArena German | 1206 | — |
| LMArena Japanese | 1150 | — |
| LMArena Korean | 1140 | — |
| LMArena Russian | 1236 | — |
| LMArena Spanish | 1212 | — |
Instruction Following Not comparable
Gemini 1.5 Flash 8B: 63.1 (#231), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| LMArena Instruction Following | 1199 | — |
Long Context Not comparable
Gemini 1.5 Flash 8B: 36.9 (#220), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| LMArena Longer Query | 1219 | — |
Writing & Preference Not comparable
Gemini 1.5 Flash 8B: 43.0 (#227), GPT-5.4 Pro: —
| Benchmark | Gemini 1.5 Flash 8B | GPT-5.4 Pro |
|---|---|---|
| LMArena Text | 1226 | — |
| LMArena Creative Writing | 1218 | — |
| LMArena Multi-Turn | 1185 | — |
Frequently asked questions
Is Gemini 1.5 Flash 8B better than GPT-5.4 Pro?
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 29.7 on the Noometry Index.
Is Gemini 1.5 Flash 8B or GPT-5.4 Pro better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 42.6 versus 34.9 in the Noometry coding category.
How many benchmarks do Gemini 1.5 Flash 8B and GPT-5.4 Pro share?
1 benchmark has published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GPT-5.4 Pro has 16.